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1、1.CAD,CAMandeffects,andthatthedrawingremains2-dimensional.ExamplesofillustratorprogramsincludeAdobeIl-“AlphabetSoup”lustrator,andCorelDraw.IntroductionTheCAD/CAMindustryhasdevelopedadiversesetofjargon(mostly“alphabetsoup”)todescribeitsvariousparts.Normally,thisconditionw
2、ouldnotpresentamajorproblemexceptthattheCAD/CAMindustryaffectssomanyotherindustries,suchaswoodworking,sign-making,plasticsfabricators,etc.Inthisbriefoverview,wewillattempttoorganizeandclarifythe“alphabetsoup”bylookingatCAD,IllustratorandCAMprograms.CAMCADCAMprograms(Comp
3、uter-AidedManufacturing)CADstandsforComputer-AidedDesignand,astakethedrawingtothefinalstagetoproducemachin-thenameimplies,itsprogramsaremeantprimarilyinginstructionsortoolpathinstructionstomakethepartforengineeringdrawingsanddrafting.Thesepro-onarouter,millingmachine,lat
4、heoranyCNC(Com-gramstypicallyprovidedimensioninginformationputerNumericallyControlled)machine.andtheabilitytodrawgeometricshapes,andpro-Theseprogramshavelimitedprovisionsfordraw-ducedrawingsbasedmostlyonlines,arcs,splineingcomparedtoCADprograms,butthiscapabilitycurvesand
5、,morerecently,3-Dsurfaces.PackagesisimprovingasthethreefamiliesofprogramsstartsuchasAutoCAD,CADkeyandProEngineeraretoconverge.TheprimarycapabilityofCAMpro-someofthemorecommonlyusedCADprogramsgramsisthegenerationoftoolpathstoproduceparts,onthemarkettoday.takingintoaccount
6、toolshapeanddiameter.Vari-ousapplicationsrequirelargediametertoolsfortheroughingworkandsmalldiametertoolsforthede-tailwork.Otherapplicationsmightrequiretoolswithflatbottoms,roundbottoms,angledcuttersorevenspecially-shapedtools(e.g.,tocutdecorationsincabinetdoors).Amongth
7、etopchoicesforCAMpackagesareMastercam,ArtCAMandEnroute.IllustratorProgramsIllustratorordrawingprogramsaresimilartoCADprograms,butaremoreartisticallyoriented.Theseprogramsareusedtodevelopillustrations,graphics,fonts,etc.Theytypicallyarebasedonlines,arcsandBeziercurves.Bez
8、iercurvesarespecialshapesthatproduceverysmoothcurves.Theseil-lustrationordrawingprogramscanonlyproduce2
