ltc2312

1, draw
Line LINE L
Construction line xline XL
Line mline ML
segment line pline PL
polygon POL
rectangle rectang REC
circle rc A
circle C
curve spline SPL
ellipse ellipse EL
insert block insert I
create block block B
hatch bhatch BH; H
line text mtext MT

2, modify
delete erase E
copy like CO
mirror MI
offset offset O
array array AR
shift move M
rotate RO
br />scale scale SC
stretch stretch S
trim trim TR
extend EX
break at point break BR
break break BR
chamfer chamfer CHA
fillet F
solve explode X

property match matchprop MA
abandon CTRL+ZU
real pan P
Real zoom zoom Z
Features CTRL+1 ; CH
Abandon U CTRL+Z
Clear DEL
3, callout and its settings
callout manager DIMSTYLE D , DST
Create a point dimension DIMORDINATE DOR
Create a linear dimension DIMLINEAR DLI
Create a circle or arc line or circle mark DIMCENTER DCE
Create a flush linear dimension (oblique) DIMALIGNED DAL
Create circular arc diameter dimension D IMDIAMETER DDI
Create circular arc radius dimension DIMRADIUS DRA
Create angle dimension DIMANGULAR DAN
Create geometric tolerance dimension TOLERANCE TOL

4, its
F1 Help
F2 Text Window
F3 Image Capture
F4 Digitizer
F5 Isometric Plane
F6 Coordinates
F7 Grid
F8 Intersection
F9 Snap
F10 Polar
F11 Image Snap Track

CTRL+N New
CTRL+O Hit
CTRL+C Close
CTRL+S save
CTRL+A save as
CTRL+V print preview
CTRL+P print
CTRL+D send

degree% %D
Minus %%P
Diameter %%C

Find CAD fonts
Posted on Sunday, October 16, 2005 2:46 PM #CAD Knowledge Collection
Using AutoCAD to draw pictures and copying pictures elsewhere Find the corresponding fonts on the machine, reflecting all kinds of garbled characters, find the fonts, don’t use the font storage location, and solve the problem from the machine location. Make AutoCAD crash more likely to cause graphic file damage The font file is required to be selected, click the correct font file, redefine the text after repairing, and then display the point. I want to remind the home that the graphics file uses a non-GB encoded font file, and the corresponding font file is required to display the text

AutoCAD draws thick Solid Lines
Posted on Saturday, October 15, 2005 10:59 AM #CAD Knowledge Collection
Technical Draftsman Standard Mechanical Drawing Line Type Regulations Using AutoCAD 2000 to Draw Thick Solid Lines and Easy to Do Use the lweight Command
br />
The command line is directly typed or selected from the pull-down menu Format (format)/Lineweight (line weight) is displayed in the box to set the required line width. The default line width is 0.25mm and use the slider to adjust the screen line weight display ratio. Transparent Commands

clickLike properties toolbar, tool icon, layers, layer property management box, set color, line type, set line width, plotter drawing, and then adjust pen width or line width. ）
Posted on Sunday, October 16, 2005 2:29 PM #CAD Knowledge Collection
1. Please enlighten me if some lines disappear when printing CAD graphics

2. Figure comparison, if there is a problem with the printer’s memory, try changing to a high-level printer

3. I have encountered a situation where the main CAD graphics of a certain version are taken from another computer (the same CAD version), although the graphics are It can be displayed all, and it is easy to find a few lines in printing. The graphics are displayed between the same plug-in.

I know the problem. So I try to design the graphic computer printing diagram, and know the landlord’s situation with me.

br />
4. I saved 2000 in the 2004 version and then printed it. I didn’t have a self-printer.

My graphics are complicated. I printed two pictures and the annotations are not complete. Let’s

5. Look at the layer setting to prohibit printing. The software runs between the same versions. The problem is.

6. Set the line type line type option. I have encountered a situation in the icon line

7. My landlord’s situation said a situation, because there are fewer or two lines, a total of ten dashed lines compared to the picture, nine dashed lines are printed, and one dashed line is printed. And the layer settings are printed The settings are all correct, and there is no such thing as “layer printing”, “line type printing”, etc. Really, some type of line type should be printed, and some type of line type should be printed extremely.

8. Layer Settings and printer memory relationship

AUTOCAD skills…how to close CAD*BAK files
Posted on Sunday, October 23, 2005 2:55 PM #CAD knowledge collection
(1) Tools – Options, select the Save tab, and then click the box to create a backup for each save, that is, CREAT BACKUP COPY WITH EACH SAVES. Hook it off before

(2) Use the command ISAVEBAK, ISAVEBAK system variable to modify 0 system variable 1 each Save all create *BAK backup files

AUTOCAD tricks… Command pre-add-and-add-difference
Posted on Sunday, October 23, 2005 2:54 PM #CAD Knowledge Collection
– and plus-AUTOCAD meaning

plus-AUTOCAD2000 makes various language versions of instructions write and formulate compatible instructions

Add before the command-the command line mode plus box mode

Specifically: add the command before the command to run the box mode, all the commands are command line input plus-command to run the box parameter input Box for

AUTOCAD tricks… Now fatal printing error
Posted on Sunday, October 23, 2005 2:47 PM #CAD Knowledge Collection
Printing with AUTOCAD (20022004) XP system Now the fatal error is resolved:

AutoCAD enables the print stamp function

If it has been enabled, the ACPLTSTAMP.ARX file in the AUTOCAD root directory needs to be renamed or deleted

Delete can run AUTOCAD and must have administrator privileges, otherwise it can be deleted

AUTOCAD skills…see toolbar
Posted on Sunday, October 23, 2005 2:42 PM #CAD Knowledge Collection
AutoCAD toolbar see

Right click on the toolbar

Or Tools-Options-Configure-Reset

Use the command: MENULOAD command

Click browse and select ACAD.MNC to load

Fix the Chinese character question mark in the CAD drawing
Posted on Sunday, October 23, 2005 2:36 PM #CAD knowledge collection
A comment about the problem can be explained
①. If the R14CAD program is used to print the R13 format DWG file, the problem of garbled Chinese characters can be found. If you are interested in discussing the solution

2. Use tools such as properties to check whether the font belongs to the font, or choose to replace the font itself. The font file matches.

③ If the garbled characters are found, the DWG file can be used first RECOVER command to repair (the office should first use the solution to solve the problem mark Chinese drawings)

Some of the problems that can be found are said to be tested. Memory is forever forgotten

cad2002 copy (ctrl+c), “paste (ctrl+V) command can be used
Posted on Sunday, October 23, 2005 2:32 PM #CAD Knowledge Collection
Load some lsp and menu files in recent cad2002 *.mnucad2002 copy (ctrl+c), “paste Paste (ctrl+V) command can be used and what to do
Please give pointers
First check: Tools – Options – User System Configuration – Windows Standard Accelerators (should be checked)

Check the line:
Enter QAFLAGS on the command line—→car—→input 0—→car try it

AutoCAD environment organization drawing demonstration
Posted on Sunday, October 23, 2005 2:25 PM #CAD knowledge collection
AutoCAD is a kind of non-popular design software widely used in mechanical, electrical, construction, clothing and other fields with strong practicability, good user interface, excellent price-performance ratio, simple and easy, etc. Many advantages are favored by engineering technicians. More importantly, the open architecture allows users to face almost everything. Its expansion and modification can meet the special requirements of users to a greater extent. machine�� AutoCAD environment painting demonstration and analysis example to illustrate the environment to realize the kind of painting. In fact, any painting is similar to the instantaneous still picture (ie frame) collection. Continuous playback of AutoCAD my mechanism model for more accurate and quantitative addition of the corresponding geometric constraint diagram crank rocker mechanism

The crank is constrained by the fulcrum A and can rotate around the point A. Because the swivel link and the rocker have the corresponding motion relationship with the constraint The initial position of crank rotation increment position is handed over to the computer for calculation. I use the definition line to draw the model and connect the mechanism to modify the position of the vertex (that is, the hinge) of the definition line. Briefly describe the program command using design ideas

Attach the program file to copy any word processing software (notepad) and save it in *.lsp format (sg.lsp) The program file should be placed in the CAD searchable directory (.. \program files\acad2000\Support), type (load “sg”) in the AutoCAD command line, and the program will be loaded into the command line, and now the “Four-bar Mechanism Analysis Program” has been successfully loaded, input sg to run, and enter sg in the command line to run The Tools->Load Application… menu button of the program loads the program loading box to find the saved sg.lsp file and press the Load button to load the program file. The advantages are limited by the search path. The program can be loaded correctly. Please check whether the sg.lsp is saved properly. Whether the content of the directory file is complete

The program should be loaded in the initial state position of the mechanism in advance, and then enter sg in the command line, and then run the command to capture the crank connection hinge A, crank and connecting rod hinge, connecting rod and rocker Rod hinge rocker connected to hinge B Four-point input V Adjust rotation speed Input C Realize self-continuous observation input L Self-draw the movement track By default, directly press the car key to step and observe for continuous observation. Data (add the same expansion statement as needed)

I can make adjustments to the mechanism through observation and testing, and then draw the initial position map and then capture the contact position. Trouble I use a pinch mechanism to make adjustments and delete the original mechanism The model can be rebuilt again.

I can create its mechanism model, such as the crank-slider mechanism and other simple mechanism groups. The compound mechanism model has been successfully created and analyzed. The GC6150M high-speed lockstitch machine feeding mechanism mechanism model program is improved Analyzing the problem and solving the problem speed I use its drawing software Pro-E, SolidWorks, etc. to analyze the structure and achieve my goal, I need to master its application ability

Attachment: sg.lsp file content

(defun c:sg(/ os ff1 w1 w2 w tt xyefg kf tis)

(setvar “cmdecho” 0)

(setvar “osmode” 0)

(initget 7 ” “)

(if ba (setq jc (entget ba)))

(setq tis nil)

(if (null jc)(setq ba nil))

(if (null ba)(setq ppa (getpoint ” \nPlease give the starting position of the four hinge points in a row\nThe first point:”)))

(if (null ba)(setq ppb (getpoint ppa “\nThe second point:”)) )

(if (null ba)(setq ppc (getpoint ppb “\nThe third point:”)))

(if (null ba)(setq ppd ( getpoint ppc “\nThe fourth point:”)))

(if ba

(progn

(setq tm 1 jc (cdr jc ))

(while jc

(if (= ’10 (car (car jc)))

(progn (cond ((= tm 1)(setq ppa (cdr (car jc))))

((= tm 2)(setq ppb (cdr (car jc))))

( (= tm 3)(setq ppc (cdr (car jc))))

((= tm 4)(setq ppd (cdr (car jc))))

)

(setq tm (1+ tm))

)

)

(setq jc (cdr jc))

)

)

)

(setq ll1 (distance ppa ppb))

(setq ll2 (distance ppb ppc))

(setq ll3 (distance ppd ppc ))

(if (null ba) (progn (command “pline” ppa ppb ppc ppd “”)

(setq ba (entlast))

)

)

(setq ff1 (angle ppa ppb))

(setq w1 (angle ppc ppb) w2 (angle ppc ppd))

(if (< w1 w2) (setq w 1))

(if (null zzs)(setq zzs 0.1 kai 0))

(princ ” \n[Esc]Back\\Vspeed\\Ccontinuous\\Ltrack line\\:”)

(setq tt (strcase (getstring)))

(if (= tt “V”)(get_v))

(while (or (= tt “L”)(= tt “”)(= tt “C “))

(setq x (- (car ppd) (car ppa)) y (- (cadr ppd) (cadr ppa)))

(setq e ( * 2 ll3 (- x (* ll1 (cos ff1)))))

(setq f (* 2 ll3 (- y (* ll1 (sin ff1)))))

(setq g (- (+ (* xx) (* yy) (* ll1 ll1) (* ll3 ll3)) (* ll2 ll2) (* 2 x ll1 (cos ff1)) (* 2 y ll1 (sin ff1))))

(setq kf (- (+ (* ee) (* ff)) (* gg)))

(if (> 0 kf)(setq zzs (- 0 zzs) kai 1)(setq kai 0))

(if (= kai 0) (if (= w 1)(setq ff3 (* 2 (atan (/ (+ f (sqrt kf)) (- eg))))) (setq ff3 (* 2 (atan (/ (- f (sqrt kf)) (- eg)))) )))

(command “pedit” ppa “e” “n” “m” (polar ppa ff1 ll1) “n” “m” (polar ppd ff3 ll3) “x” “”)

(if (= tt “L”)(command “line” ppc (polar ppd ff3 ll3) “” “line” ppb (polar ppa ff1 ll1) “”))

(setq ppb (polar ppa ff1 ll1) ppc (polar ppd ff3 ll3))

(if (not (or (= tt “L”)(= tt “C”))) (setq tt (strcase (getstring)) tis 0)(setq tis 1))

(if (= tt “V”)(get_v))

(setq ff1 (+ ff1 zzs))

)

)

(defun get_v()

(initget 1 ” ” )

(setq zzs (getreal “\n input speed (0.1～5):”))

(if (= zzs “”) (setq zzs 1))

(setq zzs (* zzs 0.1) kai 0)

(princ ” \n[Esc]Back\\Vspeed\\Ccontinuous\\Ltrack\ \:”)

(setq tt (strcase (getstring)))

(if (= tt “V”)(get_v))

)

(princ “The “Four-bar Mechanism Analysis Program” has been successfully loaded and input sg to run”)

, fast input point position
ACAD generally uses two Various coordinate input methods: Cartesian coordinate system, polar coordinate
I have used some of them to input

1. Direct input line degree ratio of the known line direction
: I want to input a horizontal line of 100 units to the right, I need to capture and set the intersection mode and move the mouse to the right to tell the computer to draw a line to the input degree of 100, that is

2. Know the angle of the line (angle with the x-axis), select the input
direction and input the degree
Ratio: the angle of the known line is 48 degrees and 100 degrees Input:
a. Input “L” to start drawing a straight line and take a point as the starting point of the line
b. Input “<48" to see that the line has been captured at 48 degrees.
c. Input degree “100” “That is, the required straight line
2. Window type and cross type

ACAD uses three image selection methods:

1. Direct point selection (point image edge)

2. Click the left button and drag the mouse on the blank of the window to select the icon. The real line indicates that the window-type rectangle is all framed. The dotted line of the box should be like a rectangular box to intersect.

Use the window-type cross-type: drag the mouse left and right to form a window type
Pull the right mouse to the left, that is, a cross-type selection image, and then input W to indicate a window
The mouth type input C represents the cross-type selection with the pipe.

V. Selection skills
The user selects the target with the mouse and selects the target to add the selection set one by one. In addition, AutoCAD provides Window (type w to respond to Select object : or directly pull the rectangle box from right to left on the screen to respond to Select object: prompt) Crossing (type C to respond to Select object: or directly pull the rectangle from left to right on the screen to respond to Select object: prompt) Cpolygon (type CP to respond to Select object:) Wpolygon (type WP to respond to Select object:) and other window-style selection targets. Window and Crossing are used for rectangular windows. Wpolygon and Cpolygon are used for edge-shaped windows. Window and Wpolygon-style entities contain window entities. Only Crossing and Cpolygon-style entities are selected. The part includes the selection of entities in the window like
AutoCAD provides the Fence type (type F in response to Select object:) to select an entity to draw a closed polyline where the polyline intersects the entity that is to select the selection target Select the selection target user type R to respond to select objects: prompt Some misselected targets are removed from the selection set, type A and then add the target to the selection set. Press enter (or right click) to select the entity condition select entity is to use ‘filter response select ob jects: AutoCAD2000 provides QuickSelect-type selection entity function filter similar operation is easier and more convenient AutoCAD provides selection set construction function, which is powerful and flexible to use to improve drawing efficiency.
Six, quality attribute query
AutoCAD provides point coordinate (ID) distance (Distance) area (area) query can be used to query the mass properties of entities in actual work. AutoCAD provides mass properties query (Mass Properties) to query entity moments of inertia, area moments, and entity mass. Attention should be paid to curves and lines. When constructing a closed area, you should first use the region command to close the area and then execute the mass attribute query before querying the attributes such as the moment of inertia, the moment of area, and the mass of the entity.
AutoCAD Chinese character processing skills:
—The first example: Empty word—

I will do the basic effect first

Steps:

1. Type the Mtext (line text) command to start the line text editing Select a variety of text styles in the character label of the device and enter three empty characters.

Note: The font should choose the stroke width of the English monoline (txt.shxgbenor.shxgbcbig.shx, etc.)Who said)

2. Type the Txtexp (solution text) command to select all the selected texts.

Note: AutoCAD text belongs to the special category and must be unlined before it can be modified. Handle Txtexp (decipher text) Express toolset command (that is, AutoCAD2000 text version menu bar shortcut tools must be installed in full or customized) This command function text to ungroup lines and arcs Note to use the Explode (solution) command

3. Type the Trim (trim) command box to select the empty words to cut off the remaining lines inside each text stroke.

4. Type the Boundary (establish boundary) command to confirm the advanced label image type line option and press pick Click the button inside each stroke to click the car

Note: The command used to trim the stroke allows independent fragmented straight lines and arcs, and then connect each stroke to a closed line. Note that this command is the actual copy of the original image and the color changes with the layer color. Delete the original image without affecting the operation, and do the empty words step by step (do the same) and prepare for some word effects processing. Select a color or click the arrow on the right to choose another color for selection

Note: You can change the color by yourself in the color selection step unless necessary for surface making

CAD space bar Use skills
Select the base point of the pattern
Space—–Shift
Two spaces—–Rotate
Three spaces—–Scale
Four Space—–mirror

Mouse wheel zoom
Mouse key drag and pan
Mouse key double-click zoom e
Left double-click entity attribute editing
alt+left mouse button zoom w
alt+mouse button pan to
tab, ~ key to zoom
any custom hotkey
hotkey configuration import
hotkey configuration import

『Lu』 Good Pig World 2.4

http://61.129.76.80/down?cid=&t=1&fmt=-

Let’s see if you can

Test it yourself

If you find a problem
http://www.gougou.com/search?search=%E4%B9 %96%E4%B9%96%E7%8C%AA%E4%B8%96%E7%95%8C2.4&id=1

Try another connection

『柒』 CAD shortcuts

Arc-aligned text command: arctext
Letters, numbers Font name: romans.shx
Chinese font name: Imitation Song_GB2312
%%p: positive and negative symbols
%%d: degree symbol
%%c: diameter symbol

CAD shortcut command
L————Line
C———— Circle
REC————Rectangle
O————Move
M————Move
CO————Copy
RO—— —Rotate
T————Text
TR————Subtract cut
PL————Polyline
E————Delete
MA— ——Match
U————Return
P————Drawing Move
Z————Zoom
MO————Properties
LI —— Area Statistics
S————Pull up
SC————Scale
X——Open

CAD Commonly used shortcuts Key

AIT+O+C–color (AIT+O is omitted below)
+N–line type
+L–layer
+W –Line width
+S–Text style
+D–Note style
+Y–Print style
+P–Point style
+ M–multiline style
+V–unit style
+T–thickness
+A–circular boundary line
+R–rename

For drawing (direct command):
OT–Single-line text
T –Multi-line text
B–Create block (heavy)
I–Insert Block (heavy)
A –Arc
MI–Mirror
M –Move (let’s try this command)
SC–Scale
LEN–stretch (heavy)

F1~F11 role:
F1—help
F2—text window
F3—object Snap
F4—(Forgot)
F5—Isometric Plane
F6—Coordinates
F7—Grid
F8- –Orthogonal
F9—Capture
F10–Polar Tracking
F11–Object Tracking
By the way, add a metal material adjustment data, I think this The effect is better, maybe use:
Gold Type: 100/20/50, reflective 100
CAD common shortcut keys

AutoCAD2002 shortcut keys

3A—use objects into 3D array
3DO—Rotate the perspective of space
3F—Create 3F surface
3P—Specify the starting point of the polyline
A—Arc
AA—Computer Area and Perimeter
AL—Align
AR—Array
ATT—Attribute Definition
ATE—Block Attribute
B— Define Block
BH—Define Hatch
BO—Create Boundary
BR—Break
C—Circle
CH— Modify Object Properties
CHA—Chamfer Right Angle
COL—Color
CO—Copy
D—Annotation Settings
DAL—Annotation
DAN—Angle dimension
DBA—Arc dimension
DCE—Circle center mark
DCO—Continuous dimension
DDI—Measurement Circle and arc diameter
DO—Concentric rings
DOV—Modify dimension variable
DRA—Dimension radius
DIV—Equal division
DI—Measure
DT—Enter Text
DV—Camera Adjust
E—Delete
ED—Modify Text
EL —Ellipse
EX—Extend
EXIT—Exit
EXP—Export Data
EXT—Extrude
F—Round Corner
FI—Select Filter
G—Object Group
GR—option
H—fill
HE—associative fill
I—insert primitive
IMP—input file
IN—Boolean Operation Collection
IO—Insert Document Program
L—Line
LA—Layer Editing
LE—Text Comments
LEN—Modify values ​​such as object length
LI—Object properties display
LO—Layout options
LS—Command history
LTC—Line Type Setup
LWC—Line Width Setup
LTS—New Line Shape Scale Factor
MC—Move
ME—Equal Divide
br />ML—Multiple Lines
MT—Text
OS—Snap Settings
O—Offset
OP—Options
>ORBIT—Rotation
P—Translation
Pl—Continuous Line
Po—Point
Pol—Polygon
PR– -Options
PRE—Page View Surface
PRINT—Print
PU—Purge
PE—Modify Polylines
REA— Redraw
REN—Rename
REC—Rectangle
REV—Rotate to 3D Surface
RO—Rotate Object
S– -Extrusion
SCL—Scale
SCR—Script File
SEC—Sliced ​​Solid
SHA—Shaded
SL—Sliced ​​Surface
SN—Specify Snap Spacing
SP—Spell Check
SPL—Spline Curve
SI—Text Style
SU— Boolean Operations
TO—Custom Toolbar
TOR—3D Torus
TR—Trim
UC—User Tone
UNI —Merge 3D Volume
V—View
VP—Viewpoint Setup
W—Write Block
X—Explode
XA- –Sample Reference File
XB—Xref Lock
XC—Clipping
XL—Reference Line
XR—Xref management
Z—Zoom

1, draw
Line LINE L
Construction line xline XL
More Line mline ML
Polyline pline PL
Regular polygon polygon POL
Rectangle rectang REC
Circular arc rc A
Circle circle C
Spline curve spline SPL
Ellipse ellipse EL
Insert block insert I
Create block block B
Hatch bhatch BH;H
Mtext mtext MT

2, modify
delete erase E
copy object CO
mirror mirror MI
offset offset O
array array AR
move move M
rotate rotate RO
scale scale SC
stretch stretch S
trim trim TR
extend extend EX
break at point break BR
break break BR
chamfer chamfer CHA
fillet F
explode explode X

property match matchprop MA
abandon CTRL+ZU
realtime pan pan P
Real-time zoom zoom Z
Features CTRL+1 ; CH
Abandon U CTRL+Z
Clear DEL
3, callout and its settings
callout style Manager DIMSTYLE D, DST
Creates a point dimension DIMORDINATE DOR
Creates a linear dimension DIMLINEAR DLI
Creates a centerline or center mark of a circle or arc DIMCENTER DCE
Creates an alignment linear Dimension (Oblique) DIMALIGNED DAL
Creates a diameter dimension of circles and arcs DIMDIAMETER DDI
Create a radius dimension for circles and arcs DIMRADIUS DRA
Create an angle dimension DIMANGULAR DAN
Create a geometric tolerance dimension TOLERANCE TOL

4,Other
F1 Help
F2 Text Window
F3 Object Snap
F4 Digitizer
F5 Isometric Plane
F6 Coordinates
F7 Grid
F8 Orthogonal
F9 Snap
F10 Polar
F11 Object Snap Track

CTRL+N New
CTRL+O Open
CTRL+C Close
CTRL+S Save
CTRL+A Save As
CTRL+V Print Preview
CTRL+P Print
CTRL+D Send

“渌” st3’s common problems lack of electronic association program: just can’t stretch

Arc alignment text command: arctext letters, numbers font name: romans.shx Chinese font name: imitation Song_GB2312 % %p: positive and negative symbol %%d: degree symbol %%c: diameter symbol CAD shortcut command L————line C————circle REC————rectangle O————move M—— ——Move CO————Copy RO————Rotate T————Text TR————Subtract PL————Polyline E————Delete MA————Match U—— —Return to P————Drawing Z————Scale MO————Attribute LI————Area Statistics S————Up SC————Scale X————Open CAD Common shortcut keys AIT+O+C–color (AIT+O is omitted below) +N–Line type+L–Layer+W–Line width+S–Text style+D–Table note style+ Y–print style+P–point style+M–multiline style+V–unit style+T–thickness+A–circle boundary line+R–rename drawing (direct command): OT –Single-line text T –Multi-line text B –Create block (heavy) I –Insert block (heavy) A –Arc MI–Mirror M –Move (about this command or ���try it) SC–scale LEN–stretch (heavy) The role of F1~F11: F1—help F2—text window F3—object capture F4—(forgot) F5- –isometric plane F6—coordinates F7—grid F8—orthogonal F9—capture F10 –polar tracking F11 –object tracking By the way, add a metal material adjustment data, I I think this effect is better, maybe use: Metal: 100/20/50, Reflective 100 Face 3P—Specify the starting point of the polyline segment A—Arc AA—Computer area and perimeter AL—Align AR—Array ATT—Attribute definition ATE—Block attribute B— -Define Block BH—Define Pattern Fill BO—Create Boundary BR—Break C—Circle CH—Modify Object Properties CHA—Chamfer Right Angle COL—Color CO—Copy D—dimension setting DAL—dimension DAN—angle dimension DBA—arc dimension DCE—circle center mark DCO—continuous dimension DDI—measure circle and arc diameter DO— Concentric circles DOV—Modify dimension variable DRA—Mark radius DIV—Equal division DI—Measure DT—Enter text DV—Camera adjustment E—Delete ED—Modify text EL—Ellipse EX—Extend EXIT—Exit EXP—Export Data EXT—Extrude F—Round FI—Select Filter G—Object Group GR— -Option H—Fill HE—Associative Fill I—Insert Primitive IMP—Input File IN—Boolean Operation Collection IO—Insert Document Program L—Line LA—Diagram Layer Editing LE—Text Comment LEN—Modify Object Length and Other Values ​​LI—Object Properties Display LO—Layout Options LS—Command History LTC—Line Type Setting LWC—Line Width Set LTS—New Line Scale Factor MC—Move ME—Equally Divide ML—Multiple Lines MT—Text OS—Snap Settings O—Offset OP—Options ORBIT- –Rotate P—Translation Pl—Continuous Line Po—Point Pol—Polygon PR—Option PRE—Page View Surface PRINT—Print PU—Clean PE— Modify polyline REA—redraw REN—rename REC—moment Shape REV—rotate into 3D surface RO—rotate object S—stretch SCL—scale SCR—script file SEC—cut solid SHA—color SL—cut plane SN- –Specify Snap Spacing SP—Spell Check SPL—Spline SI—Text Style SU—Boolean TO—Customize Toolbar TOR—3D Ring TR—Trim UC—User Soundmark UNI—Merge 3D Volume V—View VP—Viewpoint Setting W—Write Block X—Explode XA—Sample Reference File XB—Xref Lock XC—clipping XL—reference line XR—external reference management Z—scale 1, draw line LINE L construction line xline XL polyline mline ML polyline pline PL regular polygon polygon POL rectangle rectang REC arc rc A circle C spline spline SPL ellipse ellipse EL insert block insert I create block block B hatch bhatch BH; H multiline text mtext MT 2, modify delete erase E copy object CO mirror mirror MI offset offset O array array AR move move M rotate rotate RO scale scale SC stretch stretch S trim trim TR extend extend EX break at point break BR break break BR chamfer chamfer CHA fillet F explode explode X feature match matchprop MA abandon CTRL+ZU real-time Pan pan P Real-time zoom zoom Z Properties CTRL+1 ; CH Abandon U CTRL+Z Clear DEL 3. Dimension and its settings Dimension style manager DIMSTYLE D, DST Create coordinate point dimension DIMORDINATE DOR Create linear dimension DIMLINEAR DLI Create circle or circle Centerline or center mark for arcs DIMCENTER DCE Creates aligned linear dimensions (oblique) DIMALIGNED DAL Creates diameter dimensions for circles and arcs DIMDIAMETER DDI Creates radius dimensions for circles and arcs DIMRADIUS DRA Creates angular dimensions DIMANGULAR DAN Creates geometric tolerance dimensions TOLERANCE TOL 4, other F1 help F2 Text Window F3 Object Snap F4 Digitizer F5 Isometric Plane F6 Coordinates F7 Grid F8 Ortho F9 Snap F10 Polar F11 Object Snap Track CTRL+N New CTRL+O Open CTRL+C Close CTRL+S Save CTRL+A Save As CTRL+V Print Preview CTRL+P Print CTRL+D Send Degree %%D Sign %%P Diameter Symbol %%C Retrieve CAD FontPosted on Sunday, October 16, 2005 2:46 PM #CAD Knowledge Collection The most annoying thing for people who use AutoCAD to draw pictures is that the pictures copied from other places cannot find the corresponding fonts on the machine, so all kinds of garbled characters appear. The location in the machine is different. The general solution is to redefine, but sometimes this method is not always effective, and in the process, it may cause unexpected errors and cause AutoCAD to crash, more likely to cause graphic files to be destroyed. With another AutoCAD command to achieve the purpose of killing two birds with one stone, that is, use the repair (recover) command. First run AutoCAD, select the “recover” command in the file menu, select the graphic to be processed, and repair it. During the repair process, a dialog box asking for font selection will appear. At this time, you can click the correct font file to redefine it. After the repair is complete, the text can bealways displayed. One thing I want to remind everyone, if the Chinese used in the graphics file is a non-GB encoded font file, you must have the corresponding font file to display the text normally. AutoCAD Draws Thick Solid Lines Posted on Saturday, October 15, 2005 10:59 AM #CAD Knowledge Collection The national standards for technical drawing have regulations on line types in mechanical drawings. There are many ways to draw thick solid lines with AutoCAD 2000. The easiest way is to use the lweight command. This command can be directly typed on the command line, or select the drop-down menu Format (format)/Lineweight (lineweight), in the dialog box that appears, set the required line weight, the default line weight is 0.25mm, and can be adjusted with the slider The display ratio of the line width of the screen, this command is a transparent command. You can also click the tool icon layers in the object properties toolbar, and set the line width in the same way as setting the color and line type in the layer property management dialog box. Therefore, there is no need to adjust the pen width or line width when plotting on the plotter. Some lines are missing when printing CAD drawings! (discussion) Posted on Sunday, October 16, 2005 2:29 PM #CAD Knowledge Collection 1. Please do not hesitate to enlighten me. Why do some lines disappear when my CAD graphics are printed out? But my original image is still intact! 2. If the picture is relatively large, it may be a problem with the printer’s memory. Try another printer with an advanced point. 3. I have also encountered this situation, mainly because a certain version of the CAD graphics is taken to another computer (the CAD version is different) ), although all graphics can be displayed in full, it is easy to have fewer lines when printing. There are also graphics printed between different plug-ins. I don’t know the reason for the problem. So I try to design graphics as much as possible. I don’t know if the landlord’s situation is the same as mine. 4. I have the 2004 version, save it as 2000, and then print it! I don’t have my own printer! My graphics are not very complicated. I printed two pictures, and one is not marked, which is relatively complete. It’s a printer problem, don’t worry. I use WORD to print it! 5. Check if the layer is set to prohibit printing, because this problem often occurs when running between different versions of the software , it becomes a printable icon. I have encountered this situation. 7. The situation between me and the landlord is not what you said, but one or two lines are missing for no reason. For example, there are ten dashed lines in the picture. After printing, there are only nine dashed lines, and one dashed line cannot be printed out. .And the layer settings and print settings are correct, there is no such thing as “layers are not printable”, “linetypes are not printable” and so on. If this is the case, it should be that a certain type of linetype is not printed. Instead of a certain type of line type, only very few cannot be printed out. 8. It is related to the setting of the layer and the memory of the printer. AUTOCAD skills…how to close *BAK files in CADPosted on Sunday, October 23, 2005 2:55 PM #CAD Knowledge Collection (1) Tools – Options, select the “Open and Save” tab, and then in the dialog box Remove the check mark before “Create a backup every time you save” that is, “CREAT BACKUP COPY WITH EACH SAVES”. (2) You can also use the command ISAVEBAK to modify the ISAVEBAK system variable to 0. When the system variable is 1, a “*BAK” backup file will be created every time you save. AUTOCAD Skills…The difference between adding “-” before the command and not adding “-“Posted on Sunday, October 23, 2005 2:54 PM #CAD Knowledge Collection The meaning of “-” and not adding “-” in AUTOCAD is not In the same way, adding “-” is a compatible command formulated after AUTOCAD2000 to make the commands of various language versions have a unified way of writing. Adding “-” before a command is the command line mode of the command. If it is not added, it is the dialog mode. Specifically, after adding “-” before the command, the dialog mode will not appear when the command is running, and all commands are in the command line. For input, a dialog box will appear when the “-” command is not added, and the parameter input is carried out in the dialog box. AUTOCAD tricks…a fatal printing errorPosted on Sunday, October 23, 2005 2:47 PM #CAD Knowledge Gathering Solutions when a fatal error occurs when printing under XP with AUTOCAD (2002 and 2004): Turn on the print stamp function, if it has been turned on, you need to change the ACPLTSTAMP.ARX file in the AUTOCAD root directory to another name or delete it. But you can’t run AUTOCAD when you delete it, and you must have administrator rights, otherwise you can’t delete it. AUTOCAD skills…the toolbar is missingPosted on Sunday, October 23, 2005 2:42 PM #CAD Knowledge Collection If the toolbar in AUTOCAD is missing, right-click on the toolbar, or Tools – Options – Configuration ——Reset, you can also use the command: MENULOAD command, then click Browse, select ACAD.MNC to load. Why are some Chinese characters with question marks when opening other people’s CAD drawings? Posted on Sunday, October 23, 2005 2:36 PM #CAD Knowledge Collection There are many explanations for the existence of this problem, so let’s talk about it in general. ①. If you use a CAD program above R14 to open a DWG file below the R13 format, there may be a problem of garbled Chinese characters. There are many ways to solve it. I won’t go into details here, if you’re interested, you can discuss them. ②. For Chinese characters with garbled characters, you can use tools such as properties to check the font to which it belongs. Either you don’t have a font file for the font, or you are choosing to replace the font itself with a font file that doesn’t match. ③. If there are garbled characters, it may be that your DWG file has errors. You can fix it with the RECOVER command first. (This method should be the first choice. You should use the first solution for drawings with question marks and Chinese characters.) There are also some possible problems, which will not be discussed here. You can try more. The instinct and the effective way is to solve the problem by yourself after the problem occurs. This can be improved, and its memory will never be forgotten. The “copy” (ctrl+c) and “paste” (ctrl+V) commands of cad2002 cannot be used? Posted on Sunday, October 23, 2005 2:32 PM #CAD knowledge collection Recently, cad2002 loaded some lsp and menu files *.mnu, cad2002 “copy” (ctrl+c), “paste” (ctrl+V) commands The ____ does not work? Why? How to do it? Please give pointers. First check: Tools – Options – User System Configuration – Windows Standard Accelerators (should be checked). If it is checked, it still does not work, then: enter QAFLAGS on the command line—→Enter—→Enter 0—→Enter, and try it. Organization animation demonstration in the AutoCAD environmentPosted on Sunday, October 23, 2005 2:25 PM # CAD knowledge collection AutoCAD is a very popular design software, widely used in machinery, electronics, architecture, clothing and other fields , favored by the majority of engineering and technical personnel. More importantly, it has an open architecture, allowing users to expand and modify it in almost all aspects, and can meet the special requirements of users to a greater extent. There are many secondary development methods of AutoCAD, the more common and traditional is the development based on AutoLISP language. This paper tries to illustrate a method of realizing animation in this environment by taking the animation demonstration and motion analysis of the most common four-bar mechanism in mechanical transmission in AutoCAD environment as an example. In fact, any animation is a collection of multiple similar instantaneous still pictures (ie frames) played continuously. The same is true in AutoCAD, except that we quantify the mechanism model more accurately and add corresponding geometric constraints. As shown in the crank-rocker mechanism, the crank is constrained by the fulcrum A and can only rotate around point A. Because of its rotation, it drives the connecting rod and the rocker to move accordingly under different constraints, which is a one-to-one correspondence, which is in line with the equation we deduced. This equation is what we use AutoLISP language to achieve animation and The key to motion analysis. We first give the initial position of the mechanism and an increment of crank rotation, and the next position is handed over to the computer for calculation. Here we can use polylines to draw model connections, and the movement of the mechanism becomes the position of the vertices (that is, hinges) of the polylines that are modified from time to time. The motion equation of the four-bar mechanism will not be described here. The following briefly describes the use method and design idea of ​​this program command. Copy the attached program file to any word processing software (such as Notepad), and format it in *.lsp Save to disk (such as sg.lsp), the program file should be placed in a directory that can be searched by CAD (such as ..\program files\acad2000\Support), open AutoCAD, and enter (load “sg”) in the command line to load it When the program is successfully loaded, the command line will show “The Four-bar Mechanism Motion Analysis Program” has been successfully loaded, enter sg to run!” At this time, enter sg in the command line to run the program. You can also call the program loading dialog box under the Tools->Load Application… menu button, find the sg.lsp file that has been saved, and press the Load button to load the program file. The latter approach has the advantage of not being restricted by the search path. If the program cannot be loaded correctly, please check whether sg.lsp is saved in an appropriate directory and the contents of the file are complete. After the program is correctly loaded, the initial state position of the mechanism should be prepared in advance, and then enter sg in the command line to run the command! Capture the four points of the hinge A where the crank is grounded, the hinge between the crank and the connecting rod, the hinge between the connecting rod and the rocker, and the hinge B where the rocker is grounded. Input V to adjust the rotation speed, input C to realize automatic continuous observation, input L to automatically draw the motion trajectory, and by default, press the Enter key directly to observe step by step. �� During continuous observation, you can only use the cancel key [Esc] to exit the operation. When exiting, give the corresponding data needed (add different expansion statements as needed). After observation and testing, we may need to make appropriate adjustments to the mechanism. In order to save the trouble of redrawing the initial position diagram and recapturing the position of the contacts, we can make appropriate adjustments to the mechanism by means of pinch points. The model can be rebuilt again only after deleting the original mechanism model. Using this method, we can also create other mechanism models, such as crank-slider mechanism, etc., and it can also be a composite mechanism model composed of several simple mechanisms. I have successfully created a mechanism model program for analyzing the feeding mechanism of the GC6150M high-speed lockstitch machine, which improves the speed of analyzing and solving problems. Of course, we can also use other drawing software such as Pro-E, SolidWorks, etc. to analyze the mechanism, which can also achieve our purpose, but it requires us to master the ability to use it. Attached: sg.lsp file content (defun c:sg(/ os ff1 w1 w2 w tt xyefg kf tis) (setvar “cmdecho” 0) (setvar “osmode” 0) (initget 7 ” “) (if ba (setq jc (entget ba))) (setq tis nil) (if (null jc)(setq ba nil)) (if (null ba)(setq ppa (getpoint “\nPlease give the starting positions of the four hinge points in a row\ nFirst point: “))) (if (null ba)(setq ppb (getpoint ppa “\nSecond point:”))) (if (null ba)(setq ppc (getpoint ppb “\nThird point :”))) (if (null ba)(setq ppd (getpoint ppc “\nThe fourth point:”))) (if ba (progn (setq tm 1 jc (cdr jc)) (while jc (if (= ’10 (car (car jc))) (progn (cond ((= tm 1)(setq ppa (cdr (car jc)))) ((= tm 2)(setq ppb (cdr (car jc)))) ((= tm 3)(setq ppc (cdr (car jc)))) ((= tm 4)(setq ppd (cdr (car jc)))) ) (setq tm (1+ tm)) ) ) (setq jc (cdr jc)) ) ) ) (setq ll1 (distance ppa ppb)) (setq ll2 (distance ppb ppc)) (setq ll3 (distance ppd ppc)) (if (null ba) (progn (command “pline” ppa ppb ppc ppd “”) (setq ba (entlast)) ) ) (setq ff1 (angle ppa ppb)) (setq w1 (angle ppc ppb) w2 (angle ppc ppd)) (if (< w1 w2) (setq w 1 )) (if (null zzs)(setq zzs 0.1 kai 0)) (princ " \ n[Esc]Exit\\Vspeed\\Ccontinuous\\Ltrackline\\:”) (setq tt (strcase (getstring))) (if (= tt “V”)(get_v) ) (while (or (= tt “L”)(= tt “”)(= tt “C”)) (setq x (- (car ppd) (car ppa)) y (- (cadr ppd) (cadr ppa ))) (setq e (* 2 ll3 (- x (* ll1 (cos ff1))))) (setq f (* 2 ll3 (- y (* ll1 (sin ff1))))) (setq g (- (+ (* xx) (* yy) (* ll1 ll1) (* ll3 ll3)) (* ll2 ll2) (* 2 x ll1 (cos ff1)) (* 2 y ll1 (sin ff1)))) (setq kf (- (+ (* ee) (* ff)) (* gg))) (if (> 0 kf)(setq zzs (- 0 zzs) kai 1)(setq kai 0)) (if (= kai 0 ) (if (= w 1)(setq ff3 (* 2 (atan (/ (+ f (sqrt kf)) (- eg))))) (setq ff3 (* 2 (atan (/ (- f (sqrt kf) )) (- eg))))))) (command “pedit” ppa “e” “n” “m” (polar ppa ff1 ll1) “n” “m” (polar ppd ff3 ll3) “x” “” ) (if (= tt “L”)(command “line” ppc (polar ppd ff3 ll3) “” “line” ppb (polar ppa ff1 ll1) “”)) (setq ppb (polar ppa ff1 ll1) ppc (polar ppd ff3 ll3)) (if (not (or (= tt “L”)(= tt “C”)))(setq tt (strcase (getstring)) tis 0)(setq tis 1)) (if (= tt “V”)(get_v)) (setq ff1 (+ ff1 zzs)) ) ) (defun ge t_v() (initget 1 ” “) (setq zzs (getreal “\n input velocity (0.1～5):”)) (if (= zzs “”) (setq zzs 1)) (setq zzs (* zzs 0.1) kai 0) (princ ” \n[Esc]Exit\\Vspeed\\Ccontinuous\\Ltrackline\\:”) (setq tt (strcase (getstring))) (if (= tt “V”)(get_v)) ) (princ “The Four-bar Mechanism Motion Analysis Program has been loaded successfully, enter sg to run! “) 1. There are generally two coordinate input methods in ACAD: Cartesian coordinate system and polar coordinate. But we often use some other input methods. 1. When the direction of a line is known, you can Enter the length of the line directly. For example: if we want to enter a line 100 units horizontally to the right, just set the snap to “orthogonal” mode, then move the mouse to the right to tell the computer the direction to draw the line. Then enter the length 100. 2. Know the angle (angle with the positive direction of the x-axis) and length of a line, you can select the input direction and then input the length when drawing the line. For example: the angle of a line is known to be 48 degrees, and the length is 100, you can enter it like this: a. Enter “L” to start drawing a straight line, click a point to makeis the starting point of the straight line. b. Enter “<48", then you will see that the line has been automatically snapped to the 48-degree direction. c. Enter the length "100" to get the required straight line. 2. Window mode and cross mode There are three commonly used object selection methods in ACAD: 1. Directly click. (The point is on the edge of the object) 2. Window mode. When an object is selected, in an empty space, left-click and drag the mouse, and a rectangle will appear. If it is a solid line, it means that it is a window mode, and only the objects that are all framed by the rectangle will be selected. 3. Cross mode. It is the same as the window method, except that the rectangular frame is a dotted line. At this point, as long as the object intersects the rectangle, it will be selected. The use of window mode and cross mode is: when the mouse is pulled from left to right, it is window mode, and when the mouse is pulled from right to left, it is cross mode. You can also input "W" when selecting an object to indicate the window mode, and input "C" to indicate the cross mode. 5. Selection skills Users can use the mouse to select objects one by one, and the selected objects are added to the selection set one by one. In addition, AutoCAD also provides Window (to respond to Select object by typing "w": or directly on the screen from right to left Pull a rectangular box to respond to Select object: prompt), Crossing (to respond to Select object: by typing "C" or directly on the screen to respond to Select object: prompt by pulling a rectangular box from left to right), Cpolygon (to type "CP" to respond Select object:), Wpolygon (type "WP" to respond to Select object:) and other window methods to select targets, among which Window and Crossing are used for rectangular windows, while Wpolygon and Cpolygon are used for polygonal windows. In Window and Wpolygon modes, The entity is selected only when all parts of the entity are contained in the window, and in Crossing and Cpolygon modes, the entity is selected as long as part of the entity is contained in the window. AutoCAD also provides a Fence method (to respond to Select object: by typing "F") to select an entity, draw an unclosed polyline, and all entities that intersect with the polyline are selected. When selecting objects, sometimes accidentally select objects that should not be selected. At this time, the user can type R to respond to the "select objects:" prompt, and then remove some wrongly selected objects from the selection set, then type A, and then select Add targets centrally. When the selected entity and other entities are next to each other, you can hold down the CTRL key and click the left mouse button continuously. At this time, the entities next to each other are highlighted in turn, until the selected entity is highlighted. Pressing enter again (or clicking the right mouse button) selects the entity. You can also conditionally select entities, that is, use 'filter to respond to select objects:'. In AutoCAD2000, QuickSelect is also provided to select entities. The function is similar to filter, but the operation is simpler and more convenient. The construction method of the selection set provided by AutoCAD has strong functions, and the flexible and appropriate use can greatly improve the drawing efficiency. 6. Quality attribute query AutoCAD provides point coordinates (ID), distance (Distance), area (area) query, which brings great convenience to the analysis of graphics, but in actual work, sometimes it is necessary to query entity quality attributes Features, AutoCAD provides entity mass properties query (Mass Properties), which can easily query the entity's moment of inertia, area moment, and the center of mass of the entity. It should be noted that for the closed region constructed by curves and polylines, the region command should be used first. The closed area is regionalized, and then the mass attribute query is performed to query the attributes such as the moment of inertia, the moment of area, and the center of mass of the entity. AutoCAD Chinese character processing skills: —First example: hollow characters— Let's do a basic effect first. Steps: 1. Type the "Mtext" (multi-line text) command, open the "Multi-line Text Editor", select a Chinese font in the "Character" tab, such as Variety Style, and enter the three words "Hollow Character". Note: The font should be selected with stroke width, both Chinese and English. Single-line fonts (such as txt.shx, gbenor.shx, gbcbig.shx, etc.) have no effect at all (who said that?). 2. Type "Txtexp" (decomposition text) command, select all, and press Enter to decompose the selected text. Note: In AutoCAD, text belongs to a special class of objects, which must be decomposed into lines before more processing can be done. "Shortcut Tool", you must install all or custom installation), the function of this command is to decompose the text into its straight lines and arcs. Note, do not use the "Explode" command. 3. Type the "Trim" command, select the "Hollow Word", and cut off the extra lines inside each text stroke. 4. Type the "Boundary" command and confirm that "Object Type" under the "Advanced" tab� "Polyline" option, press the "Pick Point" button, click inside each stroke one by one, and press Enter. Note: After trimming, the strokes become many independent fragmented straight lines and arcs, so use this command to connect each stroke into a closed polyline. Note that the result of this command is actually a copy of the object in place, and the color changes to the layered color. The original object can be deleted so as not to affect the operation. In addition, for hollow characters, this step is not necessary (it's okay to do it, the same below), here is preparation for the processing of some later character effects. 5. Select "Background Word" on the screen, press "Ctrl+1" to open the "Object Properties" dialog box, in the "Color" column, select a color, or click the drop-down arrow on the right, select " Other", there are more colors to choose from. Note: In the following production, the color selection step will not be performed unless necessary, and you can change the color by yourself. CAD space bar commonly used tips Select the graphic base and click the space —– move the space twice – – rotate the space three times —– zoom the space four times —– mirror mouse wheel zoom mouse Middle mouse button drag pan, middle mouse button double click zoom e left mouse button double click entity attribute edit alt + left mouse button zoom w alt + middle mouse button pan to center tab, ~ key zoom any custom hot key hot key configuration export hot key configuration import kwaflwzyqb8061716775, I hope it can help you, pqzodlhkgp10640731782012-2-14 21:08:30

“9” This ASP code, there is an error there

Dim Sql,page ,n
page=clng(request.QueryString(“page”))
Set rs = Server.CreateObject(“ADODB.RecordSet”)
Sql=”select * From article Order By id desc”
rs.open sql,conn,1,1

“Pick up” how to delete the line type matched by the properties in autocad

arc Align text command: arctext
Letters, numbers Font name: romans.shx
Chinese font name: Imitation Song_GB2312
%%p: positive and negative symbols
%%d: degree symbol
%%c: Diameter Symbol

CAD Shortcut Commands
L————Line
C————Circle
REC———— Rectangle
O————Move
M————Move
CO————Copy
RO————Rotate
T—— —Text
TR————Subtract Cut
PL————Polyline
E————Delete
MA————Match
U— ——Return
P————Drawing Move
Z————Zoom
MO————Properties
LI————Area Statistics
S————Pull
SC————Scale
X——Open

CAD Common Shortcuts

AIT +O+C–Color (AIT+O is omitted below)
+N–Linear
+L- -Layer
+W–Line Weight
+S–Text Style
+D–Note Style
+Y–Print Style
+P –Point style
+M–Multiline style
+V–Unit style
+T–Thickness
+A–Circle boundary line
+ R–Rename

For drawing (direct command):
OT–Single-line text
T–Multiline text
B–Create block (rename )
I –insert block (heavy)
A –arc
MI –mirror
M –move (let’s try this command)
SC–proportion
LEN–stretching (heavy)

The role of F1~F11:
F1—Help
F2—Text window
F3—Object Snap
F4—(Forgot)
F5—Isometric Plane
F6—Coordinates
F7– -Grid
F8—Orthogonal
F9—Snap
F10–Polar Tracking
F11–Object Tracking
Add a metal material by the way The adjustment data, I think this effect is better, maybe use:
Metal: 100/20/50, reflective 100
CAD common shortcut keys

AutoCAD2002 shortcut keys

3A—Using objects into a 3D array
3DO—Rotating the perspective in space
3F—Creating 3F planes
3P—Specifying polylines The starting point
A—Arc
AA—Computer area and perimeter
AL—Align
AR—Array
ATT– -Attribute Definition
ATE—Block Attribute
B—Define Block
BH—Define Hatch
BO—Create Boundary
BR- –Break
C—Circle
CH—Modify Object Properties
CHA—Chamfer Right Angle
COL—Color
CO– -Copy
D—Dimension Setting
DAL—Dimension
DAN—Angle dimension
DBA—Arc dimension
DCE— Circle Center Marking
DCO—Continuous Marking
DDI—Measuring Circle and Arc Diameter
DO—Concentric Rings
/>DOV—modify dimension variable
DRA—dimension radius
DIV—division
DI—measure
DT—enter text
DV—Camera Adjust
E—Delete
ED—Modify Text
EL—Ellipse
EX—Extend
EXIT —Exit
EXP—Export Data
EXT—Extrude
F—Round Corner
FI—Select Filter
G—Object Grouping
GR—Options
H—Filling
HE—Associative Filling
I—Insert Primitives
IMP—Input File
IN—Collection of Boolean Operations
IO—Insert Document Program
L—Line
LA- –Layer Editing
LE—Text Comments
LEN—Modify Object Length and Other Values
LI—Object Properties Display
LO—Layout Options
LS—Command History
LTC—Line Type Setup
LWC—Line Width Setup
LTS—New Line Shape Scale Factor
MC- –Move
ME—Equals
ML—Multiple Lines
MT—Text
OS—Snap Settings
O— Offset
OP—Option
ORBIT—Rotation
P—Translation
Pl—Continuous Line
Po—Point
Pol—Polygon
PR—Options
PRE—Page View Surface
PRINT—Print
PU—Clean
PE —Modify polyline
REA—Redraw
REN—Rename
REC—Rectangle
REV—Rotate into 3D surface
RO—rotate object
S—stretch
SCL—scale
SCR—script file
SEC—cut entity
SHA—Shading
SL—Slices
SN—Specify Snap Spacing
SP—Spell Check
SPL—Splines
SI—Text Style
SU—Boolean Operations
TO—Custom Toolbar
TOR—3D Torus
TR—Trim
UC—User Voicemark
UNI—Merge 3D Volume
V—View
VP—Viewpoint Setting
W—Writing Block
X—Explode
XA—Sample Reference File
XB—External Reference Lock
XC—Crop
XL—Reference Line
XR—Xref management
Z—Zoom

1, draw
Line LINE L
Construction line xline XL
More Line mline ML
Polyline pline PL
regular polygonpolygon POL
rectangle rectang REC
circle rc A
circle C
spline spline SPL
ellipse ellipse EL
insert block insert I
create block block B
hatch bhatch BH; H
mtext MT

2, modify
delete erase E
copy object CO
mirror MI
offset offset O
array array AR
move move M
rotate rotate RO
scale scale SC
stretch stretch S
trim trim TR
extend extend EX
break at point break BR
break break BR
chamfer chamfer CHA
circle angle fillet F
factor explode X

property match matchprop MA
abandon CTRL+ZU
live pan pan P
live zoom zoom Z
Features CTRL+1 ; CH
Abandon U CTRL+Z
Clear DEL
3. Dimensions and their settings
Dimension style manager DIMSTYLE D, DST
Create coordinate points Dimension DIMORDINATE DOR
Create a linear dimension DIMLINEAR DLI
Create a centerline or center mark of a circle or arc DIMCENTER DCE
Create an aligned linear dimension (oblique) DIMALIGNED DAL
Create a circle DIMDIAMETER DDI
Creates a radius dimension for circles and arcs DIMRADIUS DRA
Creates an angular dimension DIMANGULAR DAN
Creates a geometric tolerance dimension TOLERANCE TOL

4, Other
F1 help
F2 Text Window
F3 Object Snap
F4 Digitizer
F5 Isometric Plane
F6 Coordinates
F7 Grid
F8 Orthogonal
F9 Snap
F10 Polar
F11 Object Snap Track

CTRL+N New
CTRL+O Open
CTRL+C Close
CTRL+S Save
CTRL+A Save As
CTRL+V Print Preview
CTRL+P Print
CTRL+D Send

Degrees %%D
Sign %%P
Diameter %%C

Retrieve CAD fonts
Posted on Sunday, October 16, 2005 2:46 PM #CAD Knowledge Collection
The most annoying thing for people who use AutoCAD to draw is that the drawings copied from other places cannot find the corresponding fonts in the local machine, resulting in all kinds of garbled characters. The reason why the fonts cannot be found is The font storage location used by others is different from the location in your own machine. The general solution is to redefine it, but sometimes this method is not always effective, and in the process, it may cause unexpected errors and cause AutoCAD to crash. May cause graphics files to be destroyed.

Using another AutoCAD command to kill two birds with one stone, that is, use the recover command. First run AutoCAD, select the “recover” command in the file menu, select the graphic to be processed, and repair it. During the repair process, a dialog box asking for font selection will appear. At this time, you can click the correct font file to redefine it. After repairing, the text can be displayed normally. One thing I want to remind everyone, if the Chinese used in the graphics file is a non-GB encoded font file, you must have the corresponding font file to display the text normally.

Drawing Thick Solid Lines in AutoCAD
Posted on Saturday, October 15, 2005 10:59 AM #CAD Knowledge Collection
The national standard for technical drawing has regulations on the line type in mechanical drawings �There are many ways to draw thick solid lines with AutoCAD 2000, the easiest way is to use the lweight command.

This command can be typed directly on the command line, or select the drop-down menu Format (format)/Lineweight (lineweight), in the dialog box that appears, set the required lineweight, the default lineweight is 0.25mm, and you can adjust the display ratio of the screen line width with the slider. This command is a transparent command.

You can also click the tool icon layers in the object properties toolbar to set the line width in the same way as setting the color and line type in the layer property management dialog box. Therefore, there is no need to adjust the pen width or line width when plotting on the plotter.

Some lines are missing when cad drawings are printed! (Discussion)
Posted on Sunday, October 16, 2005 2:29 PM #CAD Knowledge Collection
1. Please do not hesitate to enlighten me. Why do some lines disappear when my CAD graphics are printed out? But my original image is still intact!

2. If the picture is relatively large, it may be a problem with the printer’s memory. Try another printer with an advanced point.

3. I have also encountered this situation, mainly because of a certain One version of the CAD graphics is taken to another computer (the CAD version is different), although all graphics can be displayed in full, but there are also few lines when printing. It appears.

I don’t know the reason for the problem. So I try to print out the picture on the computer that designed the graphics. I don’t know if the landlord’s situation is the same as me.

4. I am the 2004 version, save it as 2000, and then go to print it! I don’t have my own printer!

My graphics are not very complicated, I printed two pictures, one is not marked, it is relatively complete. It’s a printer problem, don’t worry. I use WORD to print it!

5. See if the layer is set to prohibit printing, because this problem often occurs when running between different versions of the software

6. On the line type setting, individual line type options have non-printable icons, click it and it will turn into a printable icon. I have encountered this situation.

7. The situation between me and the landlord is not what you said, but one or two lines are missing for no reason. For example, there are ten dashed lines in the picture, and there are only nine dashed lines after printing. Now, there is a dotted line that cannot be printed. And the layer settings and print settings are correct, there is no such thing as “layers are not printable”, “linetypes are not printable” and so on. If this is the case, it should be A certain type of line type cannot be printed out, not only a very few of a certain type of line type cannot be printed out.

8. It is related to the setting of the layer and the memory of the printer.

AutoCAD Tips…How to close *BAK files in CAD
Posted on Sunday, October 23, 2005 2:55 PM #CAD Knowledge Collection
(1) Tools—— Options, select the “Open and Save” tab, and then in the dialog box “create a backup every time you save” that is, “CREAT BACKUP COPY WITH EACH SAVES” unchecked.

(2) You can also use the command ISAVEBAK to modify the ISAVEBAK system variable to 0. When the system variable is 1, a “*BAK” backup file will be created every time you save.

AutoCAD Skills…The difference between adding “-” before the command and not adding “-“
Posted on Sunday, October 23, 2005 2:54 PM #CAD Knowledge Collection
The meanings of “-” and not adding “-” are different in AUTOCAD.

Adding “-” is a phase that was formulated after AUTOCAD2000 to make the instructions of various language versions have a unified writing method. content command.

Adding “-” in front of a command is the command line mode of the command. If it is not added, it is the dialog mode. When the dialog mode does not appear, all commands are input on the command line. When the command is run without “-“, a dialog box will appear, and the parameter input is carried out in the dialog box.

AUTOCAD tricks…fatal printing error
Posted on Sunday, October 23, 2005 2:47 PM #CAD Knowledge Gathering
In XP with AUTOCAD (2002 and 2004) The solution when a fatal error occurs when printing under the system:

Do not enable the print stamp function in AUTOCAD,

If it has been enabled, you need to The ACPLTSTAMP.ARX file is renamed or deleted.

But you can’t run AUTOCAD when you delete it, and you must have administrator rights, otherwise you can’t delete it.

AutoCAD Tips…the Toolbar is gone
Posted on Sunday, October 23, 2005 2:42 PM #CAD Knowledge Collection
If the Toolbar is gone in AUTOCAD ,

Right click on the toolbar,

Or Tools – Options – Configuration – Reset,

You can also use the command: MENULOAD command,

Then click Browse and select ACAD.MNC to load.

Why open other people’s CAD drawings?Sometimes, some Chinese characters are question marks?
Posted on Sunday, October 23, 2005 2:36 PM #CAD Knowledge Collection
There are many explanations for this problem, so let’s talk about it in general.
①. If you use a CAD program above R14 to open a DWG file below the R13 format, there may be a problem of garbled Chinese characters. There are many ways to solve it. I won’t go into details here, if you’re interested, you can discuss them.

②. For Chinese characters with garbled characters, you can use tools such as properties to check the font to which they belong. Either you don’t have a font file for the font, or you are choosing to replace the font itself with a font file that doesn’t match.

③. If the garbled characters appear, there may be an error in your DWG file. You can fix it with the RECOVER command first. (This method should be the first choice. You should use the first solution for drawings with Chinese characters with question marks.)

There are also some possible problems, which I will not discuss here, you can go to more Try it out, after all, the most instinctive and effective way to understand CAD is to solve the problem by yourself after a problem occurs. This can be improved, and its memory will never be forgotten.

Can’t the “copy” (ctrl+c) and “paste” (ctrl+V) commands of cad2002 be used?
Posted on Sunday, October 23, 2005 2:32 PM #CAD knowledge collection
Recently, cad2002 has loaded some lsp and menu files *.mnu, cad2002’s “copy” (ctrl+c),” Paste” (ctrl+V) command doesn’t work? Why? How to do it?
Please give pointers.
First check: Tools – Options – User System Configuration – Windows Standard Accelerators (should be checked).

If it is checked, it still doesn’t work, then:
Enter QAFLAGS on the command line—→Enter—→Enter 0—→Enter, try it

Organization Animation Demonstration in AutoCAD Environment
Posted on Sunday, October 23, 2005 2:25 PM #CAD Knowledge Collection
AutoCAD is a very popular design software, widely used in machinery, electronics, architecture, Clothing and other different fields, with its strong practicability, good user interface, excellent price-performance ratio, easy to learn and many other advantages, are favored by the majority of engineering and technical personnel. More importantly, it has an open architecture, allowing users to expand and modify it in almost all aspects, and can meet the special requirements of users to a greater extent. There are many secondary development methods of AutoCAD, the more common and traditional is the development based on AutoLISP language.
This paper tries to illustrate a method of realizing animation in this environment by taking the animation demonstration and motion analysis of the most common four-bar mechanism in mechanical transmission in AutoCAD environment as an example. In fact, any animation is a collection of multiple similar instantaneous still pictures (ie frames) played continuously. The same is true in AutoCAD, except that we quantify the mechanism model more accurately and add corresponding geometric constraints, such as the crank-rocker mechanism shown in the figure,

The crank is constrained by the fulcrum A only It can rotate around point A. Due to its rotation, it drives the connecting rod and the rocker to perform corresponding motions under different constraints. It is a one-to-one correspondence, and it is a motion that conforms to the equation we deduced. This equation, This is the key to our animation and motion analysis using AutoLISP language. We first give the initial position of the mechanism and an increment of crank rotation, and the next position is handed over to the computer for calculation. Here we can use polylines to draw model connections, and the movement of the mechanism becomes the position of the vertices (that is, hinges) of the polylines that are modified from time to time.

The equation of motion of the four-bar mechanism will not be described here. The following is a brief description of the usage and design ideas of this program command.

Copy the attached program file to any On word processing software (such as Notepad), and save it in *.lsp format (such as sg.lsp), the program file should be placed in a directory that can be searched by CAD (such as ..\program files\acad2000\Support), open AutoCAD, enter (load “sg”) in the command line to load the program. When the program is successfully loaded, the command line will appear “The Four-bar Mechanism Motion Analysis Program has been successfully loaded, and input sg to run!” At this time, in the command line Enter sg in the command line to run the program. You can also call the program loading dialog box under the Tools->Load Application… menu button, find the sg.lsp file that has been saved, and press the Load button to load the program file. The latter approach has the advantage of not being restricted by the search path. If the program cannot be loaded correctly, please check whether sg.lsp is saved in an appropriate directory and the contents of the file are complete.

After the program is correctly loaded, the initial state position of the mechanism should be prepared in advance, and then enter sg in the command line to run the command! Snap the hinge A where the crank is grounded in turn, the crank andThe hinge of the connecting rod, the hinge of the connecting rod and the rocker, and the hinge B where the rocker is grounded are four points. Input V to adjust the rotation speed, input C to realize automatic continuous observation, input L to automatically draw the motion trajectory, and by default, press the Enter key directly to observe step by step. During continuous observation, only the cancel key [Esc] can be used to exit the operation. When exiting, give the corresponding data needed (add different expansion statements as needed).

After observation and testing, we may need to make appropriate adjustments to the mechanism. In order to save the trouble of redrawing the initial position diagram and recapturing the position of the contact points, we can use the pinch point method to make appropriate adjustments to the mechanism. adjustment. The model can be rebuilt again only after deleting the original mechanism model.

With this method, we can also create other mechanism models, such as crank-slider mechanism, etc., and it can also be a composite mechanism model composed of several simple mechanisms. I have successfully created a mechanism model program for analyzing the feeding mechanism of the GC6150M high-speed lockstitch machine, which improves the speed of analyzing and solving problems. Of course, we can also use other drawing software such as Pro-E, SolidWorks, etc. to analyze the mechanism, which can also achieve our purpose, but it requires us to master the ability to use it.

Attachment: sg.lsp file content

(defun c:sg(/ os ff1 w1 w2 w tt xyefg kf tis)

(setvar “cmdecho” 0)

(setvar “osmode” 0)

(initget 7 ” “)

(if ba (setq jc (entget ba)))

(setq tis nil)

(if (null jc)(setq ba nil))

(if (null ba )(setq ppa (getpoint “\nPlease give the starting positions of the four hinge points in a row\nThe first point:”)))

(if (null ba)(setq ppb (getpoint ppa “\nSecond point:”)))

(if (null ba)(setq ppc (getpoint ppb “\nThird point:”)))

(if (null ba)(setq ppd (getpoint ppc “\nThe fourth point:”)))

(if ba

(progn

(setq tm 1 jc (cdr jc))

(while jc

(if (= ’10 (car (car jc)))

(progn (cond ((= tm 1)(setq ppa (cdr (car jc))))

((= tm 2)(setq ppb (cdr (car jc)) ))

((= tm 3)(setq ppc (cdr (car jc))))

((= tm 4)(setq ppd (cdr (car jc ))))

)

(setq tm (1+ tm))

)

)

(setq jc (cdr jc))

)

)
)