catia基础学习手册1-2.ppt

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1、Welcometo…CATIAYOURFIRSTPART–STARTTOFINISHChapterOne2AnotherwayistochooseSTART,MECHANICALDESIGN,andthenPARTDESIGN.3ThereareafewdifferentwaystobeginaCatiasession.Fromthestart-upscreen,chooseFILE,NEWandthenPART.4THREEDIMENSIONALPARTGENERATIONISVERYEASYANDFOLLOWSALOGICALPROGRESSIONWHENYOUKNOWHOWTOUSE

2、AFEWICONS…goingfromTHIS…toTHIS…toTHIS…Isaseasyas1…2…3!Catiais“WINDOWS”basedandICONdriven…Somethingmostofusarealreadyusedto.5Thisisthefirstscreenyouwillencounteronthewaytomakingyourpart.Thereareafewprimarychoicesyouwillmakeherethatdeterminetheoutcomeofyourpart…Firstly,choosewhichplanethatyouwishtos

3、ketchin.Then,pickSKETCHERfromthetoolbarontheright.ThePARTTREEalwaystellsyouwhereyouare.NoticeatthetopitsaysPART1andatthebottomitiswaitingforyoutodosomethingwithPartBody.ParttreeTokeepitsimple,pickthe“xyplane”whenbeginningapart.Thiswillhelpyoutodrawinafamiliarplane.6NowyouareinSKETCHER.Fromhereyoup

4、ickaniconfromthePROFILEtoolbarandClick-and-Dragthatshapeinthesketcherenvironment.NoticethePartTreereflectsthefactthatyouareworkingonSketch1.ThisisthePROFILEtoolbar.Theseshapesareeasytouseandtheiconsareselfexplanatory.Thissquarewasdrawnusingthesquareiconinthesketcherenvironment.Atthispointyouarejus

5、troughingintheshape.Theexactdimensionswillbeaddednextifneeded.7ToCONSTRAIN,ordimensionapart,firstclickonthelinetobedoneasshownhere…pickedThisistheCONSTRAINTStoolbar…Definedindialogbox…Normalconstraint…AutoConstraint…Animateconstraint…ClickthelineandclickonNormalConstraintforthedimensiontoappear…do

6、ubleclicktochangethedimensionthatappears…Onceyouhavealloftherequiredpartsdimensioned,youarereadytogointo3Dmode…ExitSketcher…ClickEXITforCatiatoleavethesketchermodeandenter3Dmodeller…ConstraintsareusedthroughoutCatiaandcanbedemanding.Alaterchapterwillbedevotedjusttothem.8Onceyouenterthe3Denvironmen

7、t,thepartprofileyouwereworkingontakesonanisometricorientationasseenhere.ThisistheSKETCHERtoolbarfromwhichyoucanchooseaprocessofbuildingyour3Dmodel…herewehavechosenPADOncePADischosen,thePADDEFINITIONpop-upwillappe