CAD 作图技巧cad 作图技巧.docx

CAD 作图技巧cad 作图技巧.docx

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CAD作图技巧cad作图技巧

CAD作图技巧（cad作图技巧）

CAD作图技巧（cad作图技巧）

CAD.Graphingskills0

Threebasicaspectsof--AUTOCADusage

Atpresent,ourcompany'sdesigndocuments,especiallydrawings,aredrawnwithAUTOCADsoftware.However,therearestillalotofpeopleonCADarenotveryfamiliarwith,oruseisnothandy,sotheefficiencyisnotveryhigh,itcanbesaid,inourcompany,drawadrawingthesame,fastandslowintimemaybeadifferenceofseveraltimes.Atthesametime,everyonedrawoutthedrawingsdonotfeelthesamelook,somedrawingslookclear,clearandbeautiful,andsomedrawingsnotonlytheexpressionisnotclear,toomuchpointscanbeusedtodescribetoohorribletolookat.

Fromthebeginningoftheprojectdesign,Iwillbemorethantenyearsexperienceasaserialbitbybit,forourpeople,hopetobehelpfultoeveryone,fromoneortwotodraw,todevelopgoodhabits,improvethespeedofdrawingdrawing.Atthesametime,Ialsohopethatthisisastartingpoint,withthisopportunityandcarrier,wecanmaketheuseofCADforanexchangeanddiscussion,mutualimprovement.

Inaddition,becauseIamaconstructionprofessional,theotherprofessionalunderstanding,therefore,thefutureexampleswillbemainlyrelatedtotheconstructionprofession,Ihopewecandrawinferencesfromothers.

Idon'tknow.WhatdoyouthinkisthemostimportantthingtouseCADtodraw?

Itispossibleforeveryonetounderstandthis

questiondifferently,butinmyopinion,themostimportantthingistoalwaysrememberwhatthepurposeofCADdrawingis.

Wecarryontheengineeringdesign,nomatterwhatspecialtyandwhatstage,infact,istosomedesignideasordesigncontenttoexpressandreflectonthedesigndocument.Thedrawingisanintuitive,accurate,eye-catchingandeasytocommunicateformsofexpression.Sowedosomething（whetherthefinaldesigndocuments,orasaconditionsubmittedtootherprofessionalfiles,needcanhelpusexpressdesignideasandtheircontents.

Withthispremise,weshouldunderstandthatagoodcomputerdrawingshouldhavethefollowingtwofeatures:

clearandaccurate.

Clarity:

whatwehavetoexpressmustbeclear,andgooddrawingslookclear.Atfirstglance,youcantellwhichwallsare,whicharethewindows,whicharetheholes,thepipes,theequipment,thedimensioningandthecaptions,etc.,withoutoverlapping.......Inadditiontotheprintingofthedrawingsveryclearly,thedisplayonthemonitormustalsobeclear.Besidesthecleardesignideaandthedesigncontent,itisalsothefootstonetoimprovethedrawingspeed.

Accurate:

200widthofthewallcannotbepainted240;stayholescannotbemarkedonthesizeof1000X2000,andtheactualquantityis1250X2100;morecommonmistakeisclearly3000wideline,buttheamountis2999.87.Mappingisnotonlyforgoodlooking,butmoreimportantly,itcanvisuallyreflectsomeoftheproblemsonthesurface,andalsohaveanimportantimpact

onimprovingthespeedofdrawing,especiallywhenthedrawingsaremodified.

WeuseCADdrawing,shouldputthesetwopointsinmindeveryhourandmoment.Onlybydoingthesetwothingscanwesaythatthedrawingisbasicallythrough.

Thegraphshouldbe"clear"and"accurate",andthesameimportantpointinthedrawingprocessis"efficient".It'sgoodtobeabletoworkefficiently.Ifeveryonecanimprovethedrawingefficiencyby20%,eachprojectmanagerandtheheadoftheroomwillprobablynotbeabletosmile.

Clarity,accuracyandefficiencyarethreebasicpointsforCADsoftware.InCADsoftware,inadditiontosomeofthemostbasicdrawingcommands,andothereditingcommands,varioussettingsdefinition,canbesaidtobearoundtheclear,accurate,efficientthreeaspectsofthechoreography.Wesetthecommand,inlearningCADinall,hadtothink,theycanplaytheroleinthethreeaspects;wheninuseshouldpayattentiontowhat;andunderwhatconditions,themostappropriateuseofthesecommands.

Thefirsttimeyoutalkaboutthese,thekeyistoeverystaffareawareof"clear","accurate"thesetwopointsofimportance（"efficient"thispoint,weusuallygetunderstanding,butalsoaretryingtoimprove,and"clear""accurate",Iusuallyhavealotofobservation.Mycolleaguesarenotabletounderstand,orhavenotputenoughemphasison）.Whatifyouhavedifferentopinionsandotheropinions,hopetobeabletocommunicatewith.Inthefuture,Iwillsharefromdifferentanglesandwayshow

tomakeitclear,accurateandefficientintheprocessofdrawing.

-LayerSettings

Lasttime,weexploredthethreebasicprinciplesofAUTOCADsoftware:

"clear","accurate",and"efficient."".Maybewefeelalittleempty.Fromthistimeon,we'llstartfighting.

Getatask,readytostartdrawing,Idonotknowwhatyoudofirststep.Theremaybealotofpeoplewhostartdrawingdirectly,butthat'snottrue.Varioussettingsshouldbeincluded,includinglayers,lines,fonts,labels,andsoforth.Thesettingisverynecessary,onlythesettingisreasonable,isagoodfoundationforournextworkdrawing,willitbepossibletomakethenext"clear","accurate"and"efficient".

Firstofall,talkaboutlayers.ItcanbesaidthatthedefinitionofthelayeristhemostcriticalsettingofthewholeAUTOCADsoftware,andIfindthatourcompany'sstafflayerisclearandnotmanyregulations.SometimesopensomecolleaguesDWGdrawings,alookatdozensoflayers,andthensee,mostoftheelementsareonthe0floor,cannothelpbutlaughandcry.Asforthedifferentlayers,itshouldbeononelayer.Itshouldbeononelayerandnotontheother.Similarquestionscanbefoundeverywhere.

Whataretheprinciplesforlayersettings?

First,onthebasisofadequate,thelessthebetter.

Nomatterwhatthemajor,atanystageofthedrawings,alltheprimitivesonthedrawingscanbeorganizedbyacertainsetofrules.Forexample,theconstructionofprofessionaldrawings,intermsoffloorplans,canbedividedinto:

column,wall,axis,dimensioning,generalmarking,doorsandwindows,line,furnitureandsoon.Thatistosay,theplanefigureofarchitecture,inaccordancewiththecolumn,wall,axis,dimension,Chinesecharacters,suchasfurniture,doorsandwindowstoseethelinetodefinethelayer,then,inthedrawingtime,respectively,shouldbeinwhichcategory,puttheprimitivesintothecorrespondinglayertohave.

Aslongasalltheelementsinthedrawingcanbeproperlyclassified,thenthefoundationofthelayersettingissetup.Butisitbettertoclassifytheprimitives?

Incorrect。

For

example,onthefloorplan,therearedoorsandwindows,andtherearemanysteps,stairsandsoon.Aretheydividedintothegate,thewindow,theplatformandthestair?

Incorrect。

Toomanylayerswillgiveusalotofinconvenienceintheprocessofdrawing.Justlikedoors,windows,stairs,stairs,thoughnotthesamekindofthings,buttheyallbelongtothelineofsight,thenyoucanusethesamelayertomanage.

Therefore,thefirstruleoflayersettingisthatthelessthebetter,thebetter.Twomeanings,1,enough;2,streamline.Eachprofessionalsituationisdifferent,wecanconsidertheirown,howisthemostreasonable?

.

Second,0layersofuse.

Manycolleaguesliketopaintonthe0floor,becausethe0layer

isthedefaultlayer,andthewhiteisthedefaultcolorofthe0layer,sosometimesitlookslikethedisplayiswhite.Itisabsolutelyinadvisabletodoso.The0floorisnotfordrawing.Whatisthe0floorfor?

Isusedtodefineblocks.Whenablockisdefined,alltheprimitivesaresetto0layers（exceptwhentheyarespecial）,andthentheblocksaredefinedsothatwhentheblockisinserted,whichlayerisinsertedandtheblockisthatlayer.

Third,layercolordefinition.

Thelayersethavemanyproperties,inadditiontoname,color,linewidth,lineand.Whenwesetthelayer,

Definethecorrespondingcolor,alignment,linewidth.

Nowmanycolleaguesdefinethecolorofthelayer,itisbasedontheirownpreferences,likewhatcolortousewhatcolor,thisisnotreasonable.

Youshouldpayattentiontotwopointsinthecolordefinitionofthelayer.First,differentlayersareusedindifferentcolors.Indoingso,wecandrawacleardistinctionbetweencolorswhenpainting.Ifthetwolayersareofthesamecolor,itisdifficulttotellwhichlayertheoperationprimitiveisonatthetimeofdisplay.

Thesecondpointofthelayercolordefinitionisthatthecolorselectionshouldbebasedonthewidthofthelineprinted.Whenprintinglinesettingsmorewide,thislayershouldchoosemorebrightcolors;ontheotherhand,iftheprint,thelinewidth

isonly0.09mm,sothelayercolorshouldchoose8orsimilarcolor.Whydoyouwanttodothis?

Inthisway,thethicknessoftheoutgoinglinecanbevisuallyreflectedonthescreen.Forexample,let'slookatthedrawings.Thecolumnlayer（ZU）andthewalllayer（WA）printoutarethethickest,thenoneusesyellow,oneusescyan,thesetwocolorsaremorebrightinAUTOCAD.Filllayer（H）andfurniturelayer（fur）aredefinedas"0.13MM"whenprinted,anddarkercolors8and83arealsousedwhenselectingcolors.Thebenefitsofdoingso,weareinuse,slowlyunderstand.

Inaddition,whiteisonthe0andDEFPOINTSlayers,andwedon'twantotherlayerstousewhite.

Fourth,alignmentandlinewidthsettings.

Beforesettingupthealignmentofthelayer,refertothecommandLTSCALE.Ingeneral,thesettingofLTSCALEvaluesshouldbesetto1,sointhedrawingstocommunicate,notonly.Therearethreecommonlyusedlinearlines,oneistheContinouscontinuousline,theothertwoistheACAD_IS002W100pointline,and