Stratasys Objet260 - Page 67

Objet260 User Guide 5 Using Objet Studio
DOC-37004 Rev.E 5-33
l Forbestresults,arrangethetraywithAutomatic Placement,onthe
TraySettingsribbon,evenifyouinsertedtheobjectswiththeOrient
Automaticallyoption.
l 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.
Manual
Positioning
Youcanchangethepositionofobjectsonthebuildtray—eveniftheywere
insertedwiththeOrient Automatically option.Toolsforchangingthe
positionofobjectsarepresentedin"ManipulatingObjectsontheTray"on
page5-35.
Theorientationofmodelsonthebuildtrayaffectshowquicklyandefficiently
theywillbeproducedbytheprinter,whereandhowmuchSupportmaterial
isused,andwhetherornotmodelpartswillhaveaglossyfinish.Therefore,
youshouldconsideravarietyoffactorswhendecidinghowtoplacemodels
onthebuildtray,usingthefollowingpositioningrules.
X-Y-ZRule
Thisruleconsidersamodel'souterdimensions.
➢ SincetheprintheadsmovebackandforthalongtheX-axis,theprinting
timealongthisaxisisrelativelyshort,comparedtoprintingtimealongthe
Y-axisandZ-axis.Fromthispointofview,itisadvisabletoplacethe
object'slargestdimensionalongtheX-axis.
➢ AnysurfacesthatcomeintocontactwithSupportmaterialsbecomematte.
➢ Sincemodelsarebuiltup,ontheZ-axis,in16-or30-micronlayers
(accordingtotheprintingmode),itisverytime-consumingtoprintatall
object.Fromthispointofview,itisadvisabletoplacetheobject'ssmallest
dimensionalongtheZ-axis.
➢ Sincetheprintheadsmeasureabout2inches(5centimeters)onthe
Y-axis,modelsmeasuringlessthanthis(ontheY-axis)areprintedinone
pass.Fromthispointofview,itisadvisabletoplacetheobject's
intermediatedimensionalongtheY-axis.