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Using Objet Studio
5–26
DOC08010 Rev. A (DRAFT 1)
Automatic 
Placement
Afterȱplacingȱseveralȱobjectsȱonȱtheȱbuildȱtray,ȱyouȱcanȱletȱObjetȱStudioȱ
arrangeȱthemȱbeforeȱprinting.ȱThisȱensuresȱthatȱtheȱobjectsȱareȱpositionedȱ
properly,ȱandȱthatȱtheyȱwillȱbeȱprintedȱinȱtheȱshortestȱtimeȱandȱwithȱaȱ
minimumȱofȱmaterial.
To automatically arrange objects on the build tray:
¾
OnȱtheȱTrayȱSettingsȱribbon,ȱclickȱ
.
or—
FromȱtheȱToolsȱmenu,ȱselect
 Automatic Placement
.
Theȱeffectsȱofȱautomaticȱpositioningȱareȱshownȱinȱtheȱfiguresȱbelow.
Figure 5-32: Tray before objects are properly arranged
Figure 5-33: Tray arrangement after applying Automatic Placement
Manual
Positioning
Youȱcanȱchangeȱtheȱpositionȱofȱobjectsȱonȱtheȱbuildȱtray—evenȱifȱtheyȱwereȱ
insertedȱwithȱtheȱOrientȱAutomaticallyȱoption.ȱConsiderationsȱforȱ
positioningȱobjectsȱareȱpresentedȱinȱ“ModelȱOrientation,”ȱbelow.ȱToolsȱforȱ
changingȱtheȱpositionȱofȱobjectsȱareȱpresentedȱinȱ“ManipulatingȱObjectsȱonȱ
theȱBuildȱTray”ȱonȱpage 27.
Model Orientation
Theȱorientationȱofȱmodelsȱonȱtheȱbuildȱtrayȱaffectsȱhowȱquicklyȱandȱ
efficientlyȱtheyȱwillȱbeȱproducedȱbyȱtheȱ3Dȱprinter,ȱwhereȱandȱhowȱmuchȱ
supportȱmaterialȱisȱused,ȱandȱwhetherȱorȱnotȱmodelȱpartsȱwillȱhaveȱaȱglossyȱ
finish.ȱTherefore,ȱyouȱshouldȱconsiderȱaȱvarietyȱofȱfactorsȱwhenȱdecidingȱ
howȱtoȱplaceȱmodelsȱonȱtheȱtray,ȱusingȱtheȱfollowingȱpositioningȱrules.ȱ
X-Y-Z Rule
Thisȱruleȱconsidersȱaȱmodelȇsȱouterȱdimensions.
¾
SinceȱtheȱprintȱheadsȱmoveȱbackȱandȱforthȱalongȱtheȱXȬaxis,ȱtheȱprintingȱ
timeȱalongȱthisȱaxisȱisȱrelativelyȱshort,ȱcomparedȱtoȱprintingȱtimeȱalongȱ
theȱYȬaxisȱandȱZȬaxis.ȱFromȱthisȱpointȱofȱview,ȱitȱisȱadvisableȱtoȱplaceȱtheȱ
objectȇsȱlargestȱdimensionȱalongȱtheȱXȬaxis.
¾
Anyȱsurfacesȱthatȱcomeȱintoȱcontactȱwithȱsupportȱmaterialsȱbecomeȱ
matte.
¾
Sinceȱmodelsȱareȱbuiltȱup,ȱonȱtheȱZȬaxis,ȱinȱ16Ȭȱorȱ30Ȭmicronȱlayersȱ
(accordingȱtoȱtheȱprintingȱmode),ȱitȱisȱveryȱtimeȬconsumingȱtoȱprintȱaȱ
tallȱobject.ȱFromȱthisȱpointȱofȱview,ȱitȱisȱadvisableȱtoȱplaceȱtheȱobjectȇsȱ
smallestȱdimensionȱalongȱtheȱZȬaxis.
¾
Sinceȱtheȱprintȱheadsȱmeasureȱaboutȱ2ȱinchesȱ(5ȱcentimeters)ȱonȱtheȱ
YȬaxis,ȱmodelsȱmeasuringȱlessȱthanȱthisȱ(onȱtheȱYȬaxis)ȱareȱprintedȱinȱ
oneȱpass.ȱFromȱthisȱpointȱofȱview,ȱitȱisȱadvisableȱtoȱplaceȱtheȱobjectȇsȱ
intermediateȱdimensionȱalongȱtheȱYȬaxis.
¾
For best results, arrange the tray with Automatic Placement, on the Tray
Settings
 ribbon, even if you inserted the objects with the Orient
Automatically
 option.
¾
The physical characteristics of each type of Model material you use can 
affect the positioning of objects on the tray. Therefore, select materials 
before running Automatic Placement.