TABLE OF CONTENTS : Preface
1) Initial Autocad Software Set-up and Cuto!i"ation
1#1
Acad#dwt file et-up --et-up --- for default drawin$ ettin$ % &te! 'aria(le
1#
Acad#p$p file et-up --et-up --- for co!!and alia
1#*
Acad#lp file file et-up --- for pro$ra!!e tart-up AutoLip
) Preure +eel,Stora$e Tan .raftin$
#1
Be$in a new drawin$
#
Inertin$ title (loc
#*
.i!enionin$
#/
Blow-up detail - prepare0 cale and di!enion
#
Alternati'e wa& for (low-up (low-up detail detail - cop& fro! ot2er drawin$ or inert fro! li(rar& drawin$
#3
Plottin$
*) Su$$eted .raftin$ Tip
*#1
4e of 5La&er5 'eru 5Linet&pe and color5
*#
.rawin$ all entitie in a in$le la&er
/) Standard #dw$ File Li(rar&
/#1 /#1
ANSI ANSI flan flan$e $e % Eur Europ opean ean fitt fittin in$ $ etc etc##
/#
.rawin .rawin$ $ &!(o &!(oll for for weldi weldin$ n$00 (u(( (u((le0 le0 nu!( nu!(eri erin$ n$ etc# etc#
/#* /#*
Titl Title e (loc (loc A60 A60 A10 A10 A0 A0 A* A* and and A/ A/ i"e i"e
/#/
Standard drawin$
/#
7eldin$ de detail
) #dw$ File Storin$ and 8ardcop& Filin$
1) INITIAL A4TOCA. SOFT7A9E SET-4P AN. C4STOI;ATION
Although the software is ready to be used after installed, it is not efficient to begin a new drawing because all the settings are not customized according to users' needs and practice, which might include some of the following items:-
1.
The dimension setting, initial drawing L!T", LT"#AL$, %&T" setting etc. are not setup to metric mm( but instead in imperial unit inch(.
).
&ot all the linetype, te*t fonts and te*t style re+uired is loaded or created.
.
The re+uired layers and LA$ setting is not created and customized.
/.
The system 0ariables e.g. L2!34$, !T$5T, 4!A"3, A2$T%$, 2#635 etc.( are not customized to re+uired 0alue.
7. 8.
Alias command and AutoLisp programmes which speed up the drafting process are not created and added. 2ull-down menu and tablet menu is n ot customized yet.
NOTE : Throughout
this te*t, words in uppercase refer to Autocad command, 9eywords or system
0ariables. tem 1 to / re+uired changes on acad.dwt file, whereas item 7 re+uired editing on acad.pgp and acad.lsp file. %se and A"# te*t editor to edit acad.pgp, acad.lsp and a cad.mnu file and sa0e in plain te*t format. tem 8 re+uired editing on acad.mnu files. #omplete e*planation of customization on acad.mnu file which affects the pull-down menu, screen menu, function 9ey, digitizer tablet( menu, slide or icon( menu and pop-up menu is beyond the scope of this guide. The user can also e*plore the #3&;%$ under L$ pull-down menu( which affects the hardware and software en0ironmental settings.
1#1) Acad#dwt File Setup Acad.dwt file is usually stored in subdirectory
a.
%&T" - 4ecimal $ngineering style with ) decimal points. Angle in ) decimal points measured in counter cloc9wise direction with zero degree at east.
b.
3&T and "T2$ - for simplicity, only a style named 3!A&" is created with font 3!A&", width factor =.>7, te*t height zero this means the dimension te*t he ight will be 4!T5T times o0erall scale and the te*t height of 4T$5T will be entered during each 4T$5T command( and rotation angle zero. 3!A&" will be the current style for 4T$5T and the only dimension style. NOTE :
c.
The title bloc9 might contains others font or style when re+uired.
4imension "etting, eatures, "tyle and #olor
System variable/Setting
Value
Description
4!A"3
1
To maintain the dimension associate property
4!"#AL$ or o0erall scale
1
6eep the default 0alue. To be changed in each drawing see "ec. ).)(.
Te*t height
).7
%nit in mm
Te*t gap
1.7
%nit in mm
Arrow size
).7
%nit in mm
$*tension abo0e line
=.7
%nit in mm
aseline increment
>
%nit in mm
?ertical te*t alignment
Abo0e
@orizontal te*t alignment
Te*t inside
Te*t orientation
Align with dimension line
"uppress trailing zero
es
e.g. precise dimension li9e <17=.==< will be show as <17=< only.
4imension "TL$
3!A&"
idth factor =.>7, font 3!A&"
#3L3
$LL3
or all dimensioning entities, including te*t, dimension line, leader etc.
NOTE :
%nless the 4!A"3 is set to zero or the dimension is already e*ploded, the dimension will ta9e up the color of the bloc9 i.e. L3#6 as appear when using L"T(, not the color of the layer. 30erall scale will be reset after confirmation of plotting scale see section ).)( when creating new drawing.
d.
4rawing L!T" - Lower left corner at =,= B upper right corner at >1C,7C= --- to achie0e a A1 paper size on-screen 0iew for new drawing during D33! ALL see sec. ).)(.
e.
LT"#AL$ - initially set to 17 to suit metric system. t will be reset after confirmation of plotting scale see sec. ).)(
f.
The following linetypes shall be loaded into acad.dwt using L&$T2$ and L3A4 command : continuous default(, hidden, center, phantom) for tangent line of formed head(, dot for spare(.
g.
To create and customised the following layers:
Layer Name
Linetype
Color
Usage
"hell
#ontinuous
#yan
or all 0isible obEects entities, center line, hidden, tangent line
4imension
#ontinuous
ellow
or dimensioning, te*t and annotation, leader
e0ision
#ontinuous
ed
or re0ision cloud and re0ision mar9
nsulation
2hantom)
;reen
or insulation cladding outline
T
#ontinuous
!agenta
or title bloc9 and border
Layer <"hell< to be the current layer. f the user not intend to put the entities into different layer, maintain the default layer <=< as the current layer. see "ec. .1 and .) for the tradeoff comparison of using multiple and single layer drawing.(
h.
3ther important system 0ariables: lipmode - =B mirrte*t - =B aperture - 7B pic9bo* - 7B highlight - 1B ucsicon - =
1#) Acad#p$p File Setup Acad.pgp file is usually stored in
A,
FA#
,
FLL$T
#,
F##L$
#2,
F#@232
4?,
F4?$
#,
F#@A!$
$,
F$A"$
!,
F!3
L,
FL&$
A,
FAA
LA,
FLA$
T,
FT!
!,
F!3?$
.
F3TAT$
2,
F2A&
$5,
F$5T$&4
2L,
F2L&$
"T,
F"T$T#@
!",
F!"2A#$
"#,
F"#AL$
2",
F2"2A#$
3,
F3"$T
,
F$4A
L,
FL"T
;,
F$;$&
@;,
F@;@L;@T
D,
FD33!
?,
F?$
44,
F44$4T
"3,
F"3L4
44A,
F44ATT$
LT",
FLT"#AL$
44!,
F44!34
&,
F44&"$T
4,
F4"T
,
F&"$T
4T,
F4T$5T
L,
FL3#6
,
F$A6
3",
F3"&A2
5 3r $52
F$52L34$
$L,
F$LL2"$
F#32
,
FL3#6
##
NOTE :
ollow the synta* of the acad.pgp file when add in ne w alias. 4o not go o0erboard on systems with tight memory as each alias uses small amount of memory.
1#* Acad#lp File Setup AutoLisp in Autocad )===, it's called ?isuaLisp( is a built-in programming language in Autocad where the code is written by A"# te*t editor and sa0e under file name with e*tension .lsp. t is compiled and loaded into memory in Autocad drawing editor by the following command : #3!!A&4: load
.lsp files must be re-loaded each drawing session. @owe0er, acad.lsp file which is normally located directly under the directory which Autocad is installed( is a special .lsp f ile which will be loaded automatically. Acad.lsp which is empty by default is therefore use to load all the re+uired .lsp files which could be stored elsewhere. A suggested acad.lsp file is as below:-
BA#A4.L"2 #$AT$4 ..#@$ ALL ;@T" $"$?$4 B?$"3& ).1 4AT$ : 7 IA& JJ BKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK B&3T$ : T@$"$ .L"2 23;A!!$ 36" T@ T@$ $5"T 3 LA$ <"@$LL<, B<4!$&"3&<, <&"%LAT3&< <$?"3&<. 4$;$$ & #3%&T$-#L3#6"$ BT@ D$3 AT $A"T. BA&&; : 3 #3 !!A&4 #, $$, $2, "2, !2, L##, #, L, 6L, $L, "L, 2&, 2, A4, B3;&AL 3"!34$ LL $ #@A&;$4 T@$ #3!!A&4 " #A&#$LL$4 AT #$TA& "TA;$. B BL"T 3 ;L3AL ?AAL$ T@AT #A&'T $ 3?$TT$&$5#$2T %"&; <"<(: BF$? 3 $?"3&.L"2, Fi 3 %L$, %L$1 BF41, F4), F"@ 3 A44!, A44!1, 2LA&&3DD, 2LA&%.L"2, $"$T.L"2 BL"T 3 ;L3AL ?AAL$ T@AT #A& $ 3?$TT$&: BFpt 3 %L$, %L$1, $L41, $L4) $L4.L"2 BFpt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d ( #3!!A&4 <4"T< <&$A< 2A%"$ <2$<(( 4$%& #:te ( #3!!A&4 <4!1<
prompt
L3A4 <#:GA#A4GL"2G2#4<( BT2$ <2#4< T3 %& L3A4 <#:GA#A4GL"2G35<( BT2$ <$#< T3 %& L3A4 <#:GA#A4GL"2G$A6#<( BT2$ <#< T3 %& L3A4 <#:GA#A4GL"2G$A6L<( BT2$ <L< T3 %& L3A4 <#:GA#A4GL"2G#@;232<( BT2$ <#L< T3 %& L3A4 <#:GA#A4GL"2G"A2<( BT2$ <"A2< T3 %& L3A4 <#:GA#A4GL"2G6L&$<( BT2$ <6L< T3 %& L3A4 <#:GA#A4GL"2G!"#AL$<( BT2$
1#/) Acad#!nu File Setup #ustomization of this file will change or add in new feature on pull-down, screen, pop-up, icon, function 9ey and tablet digitizer( menu. The attached acad.mnu file has the following new features:-
a.
Added pull-down menu named
b.
Added tablet menu for inserting standard flange or fitting. A template must be made and place on digitizer board for use. Tablet menu is best suited for inserting drawing which is easy to be described by a number or a lphabet or both as a name that is easy to remember or recognise.
c.
Added
MORE INFO :
Acad.mnl is a Lisp file that will be loaded automatically once acad.mnu is loaded. 3thers menu Lisp file with the same filename will also be loaded once a menu file with the same filename is loaded. $.g. load
Auto#ad elease 1/ digitizer with custom-made template:
) P9ESS49E +ESSELS,STO9A>== for drawing number @!-1/>>-== e*ample only(. Alternati0ely, a new drawing might begin while editing an e*isting drawing without e*it Autocad. "a0e the current wor9ing drawing, clic9 &$ from L$ pull-down menu. A dialogue bo* appears and as9 for default drawing and new filename. The suggested default drawing is A#A4.dwt file which has been customized as in "ection 1 to meet all the needs. %se other drawing as template if you want to create a new drawing which is same as the e*isting drawing use this techni+ue instead of copying the file to another and rename it(. ou might enter the new filename at this point. f you lea0e the new filename blan9 and hit 36, Autocad will as9 for the filename upon the first "A?$. %se 32$& from L$ pull-down menu instead of &$ on the ne*t editing session.
#) Inertin$ Title-(loc The acad.dwt's drawing limits are set to A1 drawing size. "ince the actual tan9 size is usually larger than the A1 size, the first line usually shell length( that we drawn is not fully shown on screen. @ence, follow the steps stipulated below:
i.
4raw L&$, clic9 any point as first point and second point by typing : N=,17== for 0ertical tan9 with shell length 17== mm or N17==,= for horizontal tan9 with shell length 17== mm or use the rectang.lsp programme to draw the complete shell see "ec. 1.(
ii.
D33! $5T$&T to 0iew the entire line or shell and D33! <=.C5< to gain a further zoom out. 3ffset shell diameter not re+uired if you use rectang.lsp programme( and continue to draw the shell ele0ation and orientation 0iew.
t is preferable to place orientation 0iew abo0e the ele0ation for 0ertical tan9( and place orientation 0iew on the leftGright to the side ele0ation for horizontal tan9(. n any case, use third angle proEection. After the tan9 o0erall size outline is drawn, it is ready to be completed with a title-bloc9. Always insert title bloc9 $3$ dimensioning and detailing. %se 44&"$T command to insert the appropriate title-bloc9 drawing A1, A), A, /A or A=(. WARNING :
n Autocad elease 1), do not use &"$T command and specify the filename by gi0ing full path method, this may possibly o0erwrite the original file that is inserted by the e*isting drawing. %se &"$T only for local bloc9s. t is usually that the title bloc9 is smaller than the tan9 as below:
or 0ertical tan9:
3r for horizontal tan9:
4o not $52L34$ the title bloc9 yet, "#AL$ scale-up if title bloc9 smaller than tan9 or 0ice-0ersa( the title bloc9 to allow it to accommodate the tan9 ele0ation and orientation. #onsider space for dimensioning, item bubble, material list and detailing. D33! $5T$&T once to ha0e a ma*imum 0iew. TIPS :
%se %&43 to restore title bloc9 to original size and "#AL$ again repeatedly until a suitable size is obtained. WARNING :
&e0er "#AL$ the tan9 to suit the title bloc9. This will cause incon0enience in doing dimensioning and further editing. emember the scale used to "#AL$ the title bloc9 e.g. 1).7(. $52L34$ the title bloc9 and immediately change the o0erall scale under pull do wn menu "$TT&; and 4! "TL$( or 4!"#AL$ system 0ariable to the appropriate 0alue e.g. 1).7(, as well as edit the te*t <"cale< on the title bloc9 to the re+uired scale e.g. 1).7(. dimensioning can be done anytime only from now go on. Also, set LT"#AL$ to 17 multiplied by plot scale e.g. 17 * 1).7 K 1>C.7(.
n practice, the common scale shall be in the increment of ).7, e.g. 1:1, 1:), 1:).7, 1:7, 1:C.7, 1:1=, 1:1).7 etc.
#*) .i!enionin$ #*#1 4e Of Aociate .i!enion n acad.dwt, the associate dimension mode 4!A"3 is set 1 i.e. in contra with zero for depressed mode(. This will cause all the dimensions drawn out e*cept L$A4$( remain in bloc9s. The ad0antages of 4!A"3 set to 1 are:O
Automatic updating of the dimension figure upon editing, e.g. "T$T#@, "#AL$
O
$nable the te*t height, arrow size etc. to be updated with %24AT$ a 4!: command( after the dimension o0erall scale has been change. This is done if we change the title bloc9 size after we'0e done dimensioning. @owe0er, the dimension line location will not be adEusted accordingly and the L$A4$ and te*t is n ot affected by %24AT$(. "ee also WARNING in "ec. )./.)(
The 4!A"3 will determine the mode bloc9 or not a bloc9( of those newly drawn dimension, but not pre0iously drawn or e*ploded dimensions. $*ploded dimensions cannot be
%se T$4T a 4!: command( to mo0e, rotate, or restore d imension te*t to original position.
O
%se &$ a 4!: command( to edit dimension te*t.
@owe0er, in later Autocad 0ersion, dimension te*t can be edited as ordinary te*t using 44$4T command. TIPS :
%se of PQ represent original dimension figure. $.g.
#*# .i!enion Line Location And Arran$e!ent ollow the 0alue gi0en below on the dimension line location : or 0ertical tan9G0essel :
or horizontal tan9G0essel:
i.
The 0alue gap between dimension lines, item bubble diameter and te*t height( shown abo0e is the actual size we want after plotted out. @ence, the abo0e 0alue must be multiplied by the scale of the drawing $.g. 4rawing scale is 1:1=, hence gap K >=, bubble diameter K >= etc.(
ii.
To facilitate the location of dimension line, offset a few lines to the distance re+uired. !o0e lines to one side so that easier to erase them after use. Then do d imensioning and pic9 2$2$&4#%LA to the appropriate line drawn when Auto#ad prompts for dimension line location. $rase those guidelines after use.
iii.
hen do dimensioning on the same dimension line le0el, use #3& a 4!: command( instead of ?$ or @3, without re-specifying the same e*tension line.
i0.
%se 4T$5T, !4 of center of bubble to locate the te*t in the bubble. %se fit te*t( if the te*t is too long, etc. &1a.
0.
#ertain dimension must be e*ploded and trimmed when the dimension e*tension line intersect dimension te*t line.
NOTE : The
attached %L$, &3DD!A6, 2LA&% and 2LA&&3DD.lsp can automate the drawing of item bubble and nozzle mar9.
#/) Blow-up .etail #/#1 Preparation and Scale of t2e Blow-up .etail
f the details e.g. attachment or nozzle( is shown as same 0iew to the general arrangement 0iew, it is usually to #32 from the general arrangement and "#AL$ up to the re+uired legible size as blow-up details. f further editing on the detailing is re+uired after #32, do it before "#AL$ to allow editing in actual scale.
The scale of the detailing is calculated as below:-
$*ample : ;eneral Arrangement scale K 1:1= The detailing has been "#AL$ -up ) times. @ence, the scale of detailing K 1=G) K 1:7
#/# .etailin$ .i!enion 4o dimensioning after "#AL$ to allow proper allocation of the dimension line. @owe0er, this might cause the figure measured by Autocad differ from the actual d imension and the user has to input the correct figure manually. This can be remedied by setting 4!LA# to the reciprocal of detailing scale before dimensioning on the detailing default 0alue of 4!LA# is 1.= as in acad.dwt file(. or instance, if the detailing
scale is 1:7, set 4!LA# to 1G7 or = .). This will force the dimension figures shown to be multiplied by =.). This is done by typing the figure Eust follow the figure gi0en by Autocad( rather than hit enter to accept the default. WARNING :
Always reset 4!LA# to 1.= after detailing to a0oid confusion. Also, the use of %24AT$ command will restore the dimension figure according to the current 4!LA# 0alue, unless the default dimension figure is o0erwritten by the user that forgone the associate p roperty of the dimension. TIPS :
hile doing editing or dimensioning on a small area of drawing for a long period of time, it is sometimes incon0enient to use D33! command. #onsider to sa0e the re+uired on-screen 0iew using ?$ command with a 0iew name of <4<. estore this 0iew each time using ?4 an Autolisp command as mentioned in "ec. 1( instead of ordinary D33! command, which may need a few steps. The ?A command is used to 0iew the entire drawing instead of D33! ALL or $5T$&T( to reduce the time ta9en on drawing regeneration. # Alternati'e wa& for (low-up detail nstead of preparing or copy the detail from the assembly 0iew of the drawing, one might copy the detail from other drawings "ec.).7.1( or insert from library drawing "ec. ).7.)(. ##1 To cop& (low-up detail fro! ot2er drawin$
1.
3pen the drawing with the blow-up details that you want to copy.
).
"elect the obEect, right clic9, choose #opy with base point from pop-up menu. f you are using release 1 or earlier, you may ha0e to create L3#6(
.
3pen or switch to the wor9ing drawing. 2aste the copied obEect into location.
/.
"cale the pasted obEect by yG*, where * and y is the plot scale or 4!"#AL$ of the wor9ing drawing and original drawing respecti0ely. Alternati0ely, you can also chec9 the te*t height
of leader te*t and scale the pasted blow-up detail until the te*t is in correct height for plotting.(
7.
%24AT$ all dimensions in the blow-up detail.
8.
The on-plot scale of the blow-up detail must be the same as the original drawing, so that the leaderGte*t if any(, and spacing between dimension line and obEect are in the correct size after printed.
C.
f you want to change the on-plot scale of the blow-up detail because not enough space etc.(, then the leader te*t height will not be correct and the spacing between dimension lines and obEect will also affected. !anual adEustment is re+uired.
## To inert (low-up detail fro! li(rar& drawin$ "ee "ec. / for recommendedGtypical details that shall be put into library drawing. There are two options in preparing the library drawing, hence there are two difference way to insert them into wor9ing drawing according to which option you choose. @owe0er, both options re+uired you to determine the on-plot scale of the detail as appear on paper ( while preparing the library drawing. Option 1:
1.
4raw the blow-up detail in a new drawing in full scale.
).
"#AL$ upGdown the detail into predetermined plot scale, said z.
.
ith 4!"#AL$K1, and 4!LA# K 1Gz, do dimensioning.
/.
hile doing dimensioning, do not accept the figureG0alue measured. nstead o0erwrite the 0alue by entering the same figure to suppress dimension associate. "ee "ec ).7. for reason(
7.
"a0e the drawing into libray - a folder which stores all library drawings.
8.
hen the detail is re+uired later, #32 or &"$T it into the wor9ing drawing from the library.
C.
"#AL$ the inserted blow-up detail to plot scale of the wor9ing drawing.
>.
%24AT$ the dimension
Option 2:
1.
4raw the blow-up detail in a new drawing in full scale.
).
2re-determine the on-plot scale, said *. Then set 4!"#AL$ to *.
.
4o dimensioning with 4!LA#K1, of course( and sa0e the drawing into library.
/.
"imilarly, while doing dimensioning, do not accept the figureG0alue measured. nstead o0erwrite the 0alue by entering the same figure to suppress dimension associate. "ee "ec ).7. for reason(
7.
hen the detail is re+uired later, #32 or &"$T it into the wor9ing drawing from the library.
8.
"#AL$ it to yG*, where y is the plot scale or 4!L"#AL$ of the wor9ing drawing. Alternati0ely, you can also chec9 the te*t height of leader te*t and scale the pasted blowup detail until the te*t is in correct height for plotting.(
C.
%24AT$ the dimension.
&ote: step 7 and 8 is same as step / and 7 in "ec. ).7.1( Again, if you want to change the on-plot scale of the blow-up detail because not enough space etc.(, then the leader te*t height will not be correct and the spacing between dimension lines and obEect will also affected. !anual adEustment is re+uired. ##* An i!portant warnin$> &o matter how you prepare the blow-up detail, you shall watch-out that was 4!LA# being used in the original drawing. f 4!LA# was used and the dimension associate is still on if it is not e*ploded(, the 0alue of the dimension will be incorrect after "#AL$. ou can chec9 if the
dimension associate is on by 44$4T the dimension te*t. f it appears to be PQ, then it is on.( @ence, you ha0e to $52L34$ the dimension before "#AL$, or change the 4!LA# of the wor9ing drawing and %24AT$ only for the blow-up detail not recommended way as it may unintentionally %24AT$ other dimensionR(. The is why we shall o0erwrite the dimension associate by re-entering the te*t or measured figure during dimensioning, no need to e*plode( when preparing library drawing with dimension. #3) Plottin$ "ince the title bloc9 outline has been adEusted to suit the rele0ant drawing size, use 2L3T $5T$&T will normally force the ma*imum plot scale calculated by Autocad same as the re+uired drawing scale. f this is not the case or for the drawing without title bloc9(, the user shall change the plot scale 0alue in the 2L3T dialogue bo*. @owe0er, this method might cause certain portion of the drawing out of the plotable area as seen from 2re0iew( and hence adEustment of 5 andGor origin is re+uired. !a9e sure the pen width setting as shown below( is not o0erwritten by pre0ious plotting session before plotting 2lot setting is not sa0ed with acad.dwt file but with application en0ironmental setting(.
Color
Pen i!t" #mm$
Use %or
ed
=.17
#enter line, hidden line, formed head tangent line
ellow
=.)
4imensioning, leader, arrow, te*t
#yan
=.)7
All 0isible obEect e*cept insulation(
!agenta
=.)7
Title bloc9 outline
;reen
=.)7
nsulation
*) S4<
$nable 0isibility of certain layers only while unwanted layers to be $$D$.
b.
$nable plotting of certain layers only while unwanted layers to be $$D$.
c.
$nable change of color and linetype of entity by merely change the property layer of the entity. The entity color and linetype will follow the settings of the layer as long as the entity's color and linetype is <ylayer<. $*isting entities can be changed to re+uired color and linetype of a layer by using <#@232<. $ntities created by #32, !3, 3"$T etc. will follow the layer of parent entity. @ence use #@232 to change the property layer of the entity if re+uired. &ew entities will follow the color and linetype of current layer.
d.
$nable the color and linetype of all entites on a particular layer to be changed by merely change of the color and linetype of the layer setting. The user do not ha0e to u se #@232 and select all the re+uired entities which might ta9e hours of timesR( in order to change the color and linetype.
e.
hen a drawing is inserted into another drawing, the entities will be inserted together with its layers where the color and linetype of the layer can be changed by changing of the layer settings. or e*ample, if a drawing by user A is inserted into another drawing by user , the user can easily change the entity color and linetype by changing the layer settings according to the re+uirement of user .
&3T$ : f the entities are placed on layer =, the entities will ta9e-up the color and linetype of the current layer of the drawing until the inserted bloc9 is $52L34$. This
n order to ha0e the abo0e ad0antage of color and linetype controlling, the #3L3 and L&$T2$ system 0ariables shall be set to
*#) .rawin$ Entitie In A Sin$le La&er nstead of creating entities with different color and linetype in different layers, ones might consider to ma9e use of only one layers, with color and linetype as per #3L3 and L&$T2$ system 0ariable or use #@232 to modify e*isting entities' color and linetype. f the ad0antages mentioned in "ec. .1 are immaterial to the users, it is actually no significant difference whether multiple layers are used although this is usually not the case. @ence, ones might ma9e a conclusion that with the interface of AutoLisp short-cut command #T, #$, @, TL, #L, 1, ), etc. as listed in "ec. 1.(, ones might obtain full use of layer's ad0antage.
/) STAN.A9. #.7< FILE LIB9A9? There are basically ) types of library drawing:-
1.
Library drawing without dimensioning - that to be inserted in the assembly drawing. $.g. flanges
).
Library drawing with dimensioning - that to be inserted as blow-up detail as e*plained in "ec ).7.). $.g. welding details. The dimension measured shall be o0erwritten to suppress change of figure due to dimension associate as e*plained in "ec. ).7.(. The dimensions shall not be e*ploded, so that change of te*t style or color in future is easy.
The following are the obEects that shall be prepared as indi0idual library drawing:
/.1
A&" flange $uropean fitting etc.
/.)
4rawing symbol for welding, bubble, numbering etc.
/.
Title bloc9 A=, A1, A), A and A/ size
/./
"tandard drawing
/.7
elding details
4etail e*planation for the abo0e will be incorporated later(
) #.7< FILE STO9IN< AN. 8A9.COP? FILIN< This will be incorporated later(
