Using Objet Studio
5–28
DOC-06810 Rev. A
Manual
Positioning
Youcanchangethepositionofobjectsonthebuildtray—eveniftheywere
insertedwiththeOrientAutomaticallyoption.Considerationsfor
positioningobjectsarepresentedin“ModelOrientation,”below.Toolsfor
changingthepositionofobjectsarepresentedin“ManipulatingObjectson
theBuildTray”onpage 29.
Model Orientation
Theorientationofmodelsonthebuildtrayaffectshowquicklyand
efficientlytheywillbeproducedbythe3Dprinter,whereandhowmuch
supportmaterialisused,andwhetherornotmodelpartswillhaveaglossy
finish.Therefore,youshouldconsideravarietyoffactorswhendeciding
how
toplacemodelsonthetray,usingthefollowingpositioningrules.
X-Y-Z Rule
Thisruleconsidersamodelʹsouterdimensions.
¾ SincetheprintheadsmovebackandforthalongtheX‐axis,theprinting
timealongthisaxisisrelativelyshort,comparedtoprintingtimealong
theY‐axisandZ‐axis.Fromthispointofview,itisadvisabletoplacethe
objectʹslargestdimensionalongtheX‐axis.
¾ Anysurfacesthatcomeintocontactwithsupportmaterialsbecome
matte.
¾ Sincemodelsarebuiltup,ontheZ‐axis,in16‐or30‐micronlayers
(accordingtotheprintingmode),itisverytime‐consumingtoprinta
tallobject.Fromthispointofview,itisadvisabletoplacetheobjectʹs
smallestdimensionalongtheZ‐axis.
¾ Sincetheprintheadsmeasureabout2inches(5centimeters)onthe
Y‐axis,modelsmeasuringlessthanthis(ontheY‐axis)areprintedin
onepass.Fromthispointofview,itisadvisabletoplacetheobjectʹs
intermediatedimensionalongtheY‐axis.
Tall-Left Rule
Thisruleconsidersmodelswhere,afterbeingorientatedonthebuildtray
accordingtootherconsiderations,onesideistallerthantheother.
¾ SincetheprintheadsmovealongtheX‐axisfromlefttoright,taller
sectionsontherightrequiretheprintheadstoscanunnecessarilyfrom
theleftuntilreachingthem.If,ontheotherhand,thetallersectionsare
positionedontheleftofthetray,theprintheadsonly
havetoscanthe
modeluntilprintingthesesections—oncethelowerpartshavebeen
completed.Therefore,youshouldpositionthetallersideofthemodel,
whenpossible,ontheleft.
Recess-Up Rule
Thisruleconsidersmodelscontainingsurfacerecesses.
¾ Recessesinthesurface(likehollows,drillholes,etc.)should,when
possible,bepositionedface‐up.
The following rules are based on the fact that support material is not
required on the top of the printed model.