资源描述：
《64-指导老师孙祖和（64-instructorsunzuhe）》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、64-指导老师孙祖和(64-InstructorSunZuhe)Advisor:SunZuheDesigner:DongJuntian,ZhangYiqiang,YuQian,YaoZhixue,ShenJin,ChenLijiaFirst,themodeldesignprocessFromthissemestertenthandnowwelearntheMASTERCAM,althoughthetimeisverytight,butwethroughcarefulstudyclassandpracticeafterclass,basicgraspofthe
2、basictechnologybasedonMASTERCAM.Inordertobettergraspandapplyvariouscommands,todeepentheimpressionofMASTERCAM,soafterdiscussion,ourgroupdecidedtomakecatmodelasasummaryofthiscourse・Wechoosethemachinecatasthethemeofthedesign,mainlytakingintoaccountotherelementsmachinecatisrich,sointhe
3、wholeprocessofdesignandmanufacture,canmakefulluseofallkindsofknowledgeandcommandlearned・Hereisthebasicdataaboutthemachinecatmodel:(unit:millimeter)Lengthisabout:59Width:72Heightapproximately:21.5Two,modelingmethodTherearethreebasicmodelingtechniquesinMASTERCAMmodeling,thatis,wirefr
4、amemodeling,surfacemodeling,andsolidmodeling・Surfacemodelingandsolidmodelingaredevelopedonthebasisofonlineframemodeling・Thesurfaceismadeupoflines,andthelinesaremadeupofdots・Becausethesurfaceofthemachinecatismorecomplicated,wechoosetodrawthebasicwireframefirstandthengeneratethecurve
5、dsurfaceonthebasisofthelineframe・Thestepscanberoughlydividedinto:Thefirststep:usinglinear,arc,curveandotherbasiccommandstodrawtheframeshapeofmachinecat.Thesecondstep:withrotatingsurface,scanningsurface,surfacefillet,surfacecorrection,surfacecorrectionandothercommands,draw3Dmodeling
6、・Three,moldingstepsandmaincommandsStep1:generatewireframeDrawing>arc>pointradiuscircle(centerofcircleisorigin,radius20)Drawing->>pointarcradius(YuanXinradius(0,5),12)Drawing->>straighthorizontalline(Y15)(Figure1)Drawing>>arc>pointradius,circlepaintingeyeConversion>mirror>>onlyafigu
7、re>>arc,selectYaxismirror(Figure2)Figure1Figure2Drawing>arc>>arc>>cuttwoobjects,selecttwoeyes,thenradius2,drawnoseDrawing>line>horizontalline,drawthemouth(Figure3)Figure3Drawing>curve>handanimationwithoutlineofbodyandfootoutlineDrawing>arc>pointradiuscircle(12.5)drawthecircleontheb
8、elly,anddrawaconcentriccir
