3d打印中最小壁厚的设计指导说明

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1、3D打印中最小壁厚的设计指导说明3D打印店http://my3dp.cn/2013-01-06ThisShapewaystutorialexplainshowtoavoid3dprintingerrorsthatoccurduetotheminimumwallthicknessrequirementsof3dprinters.Minimumwallthicknessisdefinedastheminimumthicknessthatyourmodelshouldhaveatanyonegivenpoint.Inthecaseoftheimageaboved=1istheminim

2、umthickness.Ifyouaredesigningacylinderforexamplethecylinderitselfshouldatalltimeshavealargerdiameterthan2mm.Ifyouwouldturnthatcylinderintoastrawtheedgeofthatstrawshouldatalltimesbeatleast2mmthick.Theminimumwallthicknessdependsonthematerialyouchoose.Checkthematerialscomparisonsheettofindthewal

3、lthicknessforthematerialyouwanttohaveyourprojectprintedin.HereyoucanseethewallthicknessofoneofourLightPoems.BettersafethansoundIfyoudonothaveexperiencewithdesigningfor3Dprinting,minimumwallthicknessisanoftenencounterederror.Inthevirtualworldofarenderingyourmodelcanhaveanydimensionorbeasthicko

4、rthinasyouwant.Ifyouwouldliketomakeamodelintherealworldthough,for3Dprinting,therearesomeconstraintsthough.ThinequalsdelicateEventhoughyoucoulduseaminimumwallthicknessof1mmwhenusingWhite,Strong&Flexiblewerecommendthatyoustickto2mm.Wewouldalsoneverrecommendmakinglargeportionsofyourmodelthisthin

5、becausethiswouldmakeitexcessivelydelicate.ForanexampleletuslookatthelovelyChameleonbyR3PO.ForscaleIputitbehindawhiteboardmarker.Hereyoucanseethatthemodelisquitedetailed.Actuallythemodelissodetailedthatsomeofthefinerdetailsuchasthepupilsintheeyesdonotshowupwithmylens.Thismodelshouldalwaysbeatl

6、east2mm.Indeedasweseeherethetinylookinglegsare2mmindiameter.Thetongueitselfisonemmindiameteratthethinnestpoint.Inthiscasea1mmwallthicknessworksbutwewouldneverrecommendthatyoumakelargeportionsofyourmodel1mmthick.Youmustalsorememberthatthetongueitselfisveryfragile.WhydoIneedtoworryaboutthisanyw

7、ay?Gettingyourmodeljustrightwillbecomemuchmorecomplicatedinitiallyifthewallsofthemodelareapproachingthelimitof1mm.Youmightinadvertentlycauseaholeinyourmeshforexample.Ormorecommonly,makeonepartjustatadbittoothinwhichcausesittonotbeabletobe3Dpr