plastic bottlecatia 经典的可乐瓶练习.docx
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plastic bottlecatia 经典的可乐瓶练习.docx
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plasticbottlecatia经典的可乐瓶练习
PlasticBottleExercise
ExercisePresentation:
PlasticBottle
PlasticBottle
(1):
CreatingtheBottomofthebottle
PlasticBottle
(2):
CreatingtheBodyofthebottle
PlasticBottle(3):
Creatingthebottleneck
PlasticBottle(4):
AssemblethethreeGeometricSets
PlasticBottle(5):
CreatetheBottleneckscrew
Exercise
ExercisePresentation:
PlasticBottle
3Hours
Inthisexerciseyouwillseehowtocreateaplasticbottle
usingtheGenerativeShapeDesignworkbench
functionalities:
Creatingwireframeelements(point,line,plane..)
Creatingsurfaces(sweep,loft,extrude,revolve…)
Manipulatingsurfaces(trim,symmetry,join…)
DesignIntent:
PlasticBottle
Creationofwireframegeometry:
points,lines,planes,helixusingthestackingcommands
capabilitiesandworkingonsupport
CreationofsurfacesusingSweep,Loft,ExtrudeandRevolve
OperationsonsurfacesusingFillets,Trim,Joinandhealing
Analysingthesurfacesusingtheconnectchecker.
DesignProcess:
thePlasticBottle
1
Createthe
Bottomofthe
bottle
4
Assemblethethree
GeometricalSet
Createthe
Bottleneck
3
Createthe
bodyofthe
bottle2
5
Createthe
bottleneckscrew
ontheassembled
part
PlasticBottle
Step1:
Creatingthebottomofthebottle.
30min
Completetheexistingwireframegeometry.
Createthebottom’sbottlesurfaces
DoItYourself(1/4)
Partused:
start_bottle.CATPart
Intersect.1
Intersect.4
(2)Sketch.2
(3)
1-InsertanewGeometricalSet,renameitasBottle_Bottom.
2-CreateanIntersectionpointbetweentheIntersect.1axisandthegreenprofileSketch.2.
3-WorkingontheZXplanesupport,drawacirclebyCenterandpoint(creatingthecenterpointon
thefly)withthefollowingcharacteristics:
•Centerpointonthepinkaxisand5mmbelowtheIntersectionpointjustcreated(Intersect.4)
•Intersect.4aspointand–90and90degreesasStartandEndangle.
DoItYourself(2/4)
(6)
(4)
(7)
(9)
4-Createapointonplane(-15mm;-20mm)withtheIntersect.4asreference.
5-CreateaSymmetryofthispointusingthepinkaxis(Intersect.1)asreference.
6-Usingthesetwopoints,createtwobi-tangentlineswiththepreviouscircle.
7-Trimthetwocreatedlineswiththecircle.
8-ExittheWorkonsupportmode.
9-Createtwosymmetricplaneswithanangleof36degreeswiththeYZreferenceplane.
DoItYourself(3/4)
(11)
(10)
(12)
10-CreateanExplicitsweepusingtheTrim.2asprofileandthegreenSketch.2asGuidecurve.
11-Createa180degreesrevolvedsurfaceusingtheSketch.1asprofileandtheIntersect.1asaxis.
12-Trimthetwocreatedsurfaces.
DoItYourself(4/4)
(13)
(14)
(16)
(15)
13-CreateaVariableedgefilletasshown.
14-SplitthecreatedEdgeFillet.1withthetwo36degreesplanescreatedbefore.
15-Create4Rotatesurfaces(72degrees)tocompletethebottom.
16-JointhecreatedsurfacesandrenametheJoinasBottle_Bottom.
PlasticBottle
Step2:
Creatingthebodyofthebottle.
20min
Completetheexistingwireframegeometry.
Createthebody’sbottlesurfaces.
DoItYourself(1/3)
Partused:
bottle_step2begin.CATPart
Circle.1
Parallel.3
(2)
Sketch.4
Parallel.1Parallel.2
Sketch.4
Plane.2
Circle.1
(4)(5)
(3)
1-InsertanewGeometricalSet,renameitasBottle_Body.
2-CreatetwoparallelcurvesoftheSketch.4ontheZXplaneatadistanceof3mminbothdirections.
3-CreateaparallelcurveoftheCircle.1onthePlane.2atadistanceof1.6mminward.
4-Create2CombinedcurvesbetweentheCircle.1andthetwocurvesParallel.1andParallel.2
5-CreateaCombinedcurvebetweentheSketch.4andtheParallel.3
DoItYourself(2/3)
(7)
(6)
6-CreateanImplicitCircularSweptsurfacewiththreeguidesusingthethreecreatedcombined
curvesasguidecurves.
7-Create3instancesofthisSweepusingaTranslatealongtheZaxisandtheRepeatobjectafterOK
option.Forthedistancebetweentheinstances,createtheformula:
‘Starting_crv\Plane.2\Planeoffset.1\Offset’/5
8-Jointhecreatedsurfaceswiththeoriginalsweep.
DoItYourself(3/3)
Sketch.3
(11)
(9)
(10)
(12)
9-CreateaRevolvedsurfaceusingtheSketch.3asprofileandthetheIntersect.1asRevolutionaxis.
10-TrimthecreatedrevolvedsurfacewiththepreviousJoin.
11-Createa2mmedgefilletontheedgesresultingofthepreviousTrim.
12-RenamethecreatedfilletasBottle_Body.
PlasticBottle
Step3:
Creatingthebottleneck.
60min
Completetheexistingwireframegeometry.
Createthebottlenecksurfaces.
DoItYourself(1/8)
Partused:
bottle_step3begin.CATPart
Intersect.3
Point.3
Plane.2
Intersect.2
(1)
(2)
(3)
1-InsertanewGeometricalSet,renameitasBottleneck.
2-CreateaPointbetweentheIntersect.2andIntersect.3pointswitharatioof0.6
3-CreateaplaneparalleltothePlane.2throughthecreatedPoint.3
DoItYourself(2/8)
4-DrawthefollowingSketchontheZXplane.
Plane.3
(5)Intersect.3
5-Createtwoextrema(MinimumandMaximum)onthesketchintheZdirection.
DoItYourself(3/8)
(7)
(6)(8)
6-CreateaRevolvedsurfaceusingtheSketch.3asprofileandtheIntersect.1asRevolutionaxis.
7-CreateaBoundarycurvewiththeloweredgeoftherevolutionsurface.
8-Createapointontheboundaryusinga0.125ratioofcurvelength,andusingthePoint“Extremum.2”
asreferencepoint.
DoItYourself(4/8)
(10)
(9)
9-Createa12mmExtrudedsurfacewiththeCircle.1
intheZaxisdirectionupward.
10-CreateaBoundarycurvewiththeupperedgeof
theextrudedsurface.
11-Createa35mmradiuscircleonthePlane.5with
thePoint.3ascenter.
(11)
DoItYourself(5/8)
(12)
(13)
12-CreatetwoprojectedpointsofExtremum.2ontheCircle.3andontheBoundary.2
13-CreateaMultisectionSurfacebetweenthethreesections:
Boundary.1;Circle.3;Boundary.2
UsetheboundariessurfacesastangentsandtheExtremum.2anditsprojectionsasclosingpoints
DoItYourself(6/8)
(14)
(15)
14-CreateaLineontheLoft.Startingfromtheextremum.2withanangleof45degwiththeupper
boundaryandwithalengthof500mm.
15-CreateasecondlineontheLoft,startingofthePoint.4withallthesamecharacteristicsthanthe
previousline.
DoItYourself(7/8)
(14)
(16)
(15)
14-Createanewboundarycurveontherevolutionsurfacerelimitedbythetwopreviouslines.
15-CreateasecondboundaryontheExtrudedsurfacerelimitedbythetwopreviouslines.
16-HidetheLoftandcreateaFillsurfacewithfourpreviouscurves.
DoItYourself(8/8)
(18)
(17)
17-Create7rotatedinstancesofthefillsurfacearoundtheintersect.1axis(45degrotation).
18-Joinalltheserotatedsurfaceswiththefillsurface,andwiththeextrudedandtherevolvedsurfaces.
19-RenamethejoinasBody_style.
PlasticBottle
Step4:
AssemblethethreeGeometricSets.
20min
Completetheexistingwireframegeometry.
Assemblethepreviousbodieswithtrimoperationsandfillets.
DoItYourself(1/5)
Partused:
Bottle_Step4Begin.CATPart
(1)
(2)
1-InsertanewGeometricSet,renameit
Bottle_Assembled.
2-Createa2mmupwardoffsetplanefromthePlane.1.
3-Createa2mmdownwardoffsetplanefromthe
Plane.2.
(3)
DoItYourself(2/5)
(4)
(6)
(5)
4-CreateanIntersectionbetweenthePlane.7andtheBottle_Body.
5-CreateanIntersectionbetweenthePlane.6andtheBottle_Body.
6-CreateanIntersectionelementbetweenthePlane.1andtheBottle_Bottom.
DoItYourself(3/5)
(7)(8)
7-CreateanImplicitlinearsweptsurfacewithtwoguidecurves:
Intersect.6andIntersect.7
8-CreateanImplicitlinearsweptsurfacewithtwoguidecurves:
Intersect.5andCircle.1
DoItYourself(4/5)
(9)
(11)
(10)
(12)
9-TrimtheuppersweptsurfacewiththeBottle_Body.
10-TrimthepreviousTrimwiththeBody_Stylesurface.
11-TrimthelowersweptsurfacewiththeBottle_Bottom.
12-Trimthetwolasttrims.
DoItYourself(5/5)
(13)
(14)
13-Createa6mmEdgeFilletonthetwosharpedges.
14-RenamethefilletasBottle_Assembled.
PlasticBottle
Step5:
Creatingthebottleneckscrew.
20min
Completetheexistingwireframegeometry.
Createthescrewsurfaces.
DoItYourself(1/4)
Partused:
Bottle_Step5Begin.CATPart
1-InsertanewGeometricalSet,renameitasBottleneck_Screw.
2-Createontheflyapointandaplanewiththecharacteristicsshownbelow.
(2)
DoItYourself(2/4)
(3)
(4)
3-CreateaHelixstartingfromthelastcreatedPoint.5withIntersect.1asaxisandwiththefollowing
parameters:
Pitch=3mm/Height=7mm/Orientation=Counterclockwise
4-CreatealinenormaltothehelixonthelastPlane.8startingat1.6mmfromthePoint.5withaLength
of20mm
DoItYourself(3/4)
(5)
(6)
5-Createapointonthehelixatadistanceof0.8mmfromthestartingPoint.5
6-CreateaConnectCurvetolinktheHelixwiththeLine.5
DoItYourself(4/4)
(7)
(8)
7-CreateanImplicitcircularprofilesweptsurface.ChooseCenterandradiusassubtype,Connect.1as
Centercurveandaradiusof0.8mm.
8-Trimthecreatedsweepwiththeassembledbottle.
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