User's Manual

Handling Printed Models
7–4 DOC08010 Rev. A (DRAFT 1)
Post-Printing Treatment for Models Printed with Objet VeroClear
ModelsȱmadeȱwithȱObjetȱVeroClearȱ(RGD810)ȱhaveȱaȱslightȱyellowȱtintȱ
whenȱremovedȱfromȱtheȱprinter.ȱThisȱisȱespeciallyȱtrueȱforȱmodelsȱprintedȱ
withȱaȱglossyȱfinish.ȱTheȱyellowȱtintȱfadesȱnaturallyȱoverȱtime,ȱbutȱyouȱcanȱ
greatlyȱaccelerateȱthisȱprocessȱbyȱusingȱaȱsuitableȱphotobleachingȱ
treatment.
Asȱaȱrule,ȱbestȱ
clarityȱisȱachievedȱwhenȱpartsȱareȱprintedȱwithȱaȱmatteȱ
finish,ȱandȱtreatedȱasȱexplainedȱbelow.
Photobleachingȱmodelsȱinvolvesȱexposingȱthemȱtoȱlight.ȱToȱachieveȱhighlyȱ
controlledȱandȱpredictableȱresults,ȱaȱprofessionalȱilluminationȱchamberȱisȱ
recommended.ȱHowever,ȱadequateȱresultsȱmayȱbeȱobtainedȱusingȱordinaryȱ
deskȱlampsȱfittedȱwithȱsuitableȱfluorescentȱelements.
Photo-
Bleaching
Instructions
Followȱtheseȱinstructionsȱforȱphotobleachingȱprintedȱmodels.
• Theȱfluorescentȱlampsȱshouldȱbeȱratedȱ45W,ȱ6500K.
• Whenȱusingȱdeskȱlamps,ȱplaceȱtheȱmodelsȱinȱaȱcontainerȱlinedȱwithȱ
aluminumȱfoil.ȱUseȱatȱleastȱtwoȱlamps,ȱmoreȱwhenȱtreatingȱmodelsȱinȱaȱ
largeȱcontainer.
• Arrangeȱtheȱmodelsȱwithȱenoughȱspaceȱbetweenȱthemȱtoȱallowȱlightȱtoȱ
reachȱallȱsidesȱofȱeachȱmodel.
• Verifyȱthatȱtheȱambientȱtemperatureȱaroundȱtheȱmodelsȱisȱ
approximatelyȱ40 ºCȱ(104 ºF).ȱHigherȱtemperaturesȱmayȱcauseȱmodelȱ
distortion;ȱlowerȱtemperaturesȱmayȱnotȱproduceȱsatisfactoryȱresults.ȱ
Whenȱusingȱdeskȱlamps,ȱyouȱcanȱachieveȱtheȱrequiredȱtemperatureȱbyȱ
positioningȱtheȱlampsȱapproximatelyȱ10ȱcmȱ(4ȱin.)ȱaboveȱtheȱmodels.
• Inspectȱtheȱmodelsȱafterȱsixȱhoursȱofȱtreatment.ȱ
 Forȱpartsȱwithȱaȱmatteȱfinish,ȱthisȱshouldȱbeȱenough.ȱPolishȱandȱ
lacquerȱtheȱparts.
 Forȱpartsȱwithȱaȱglossyȱfinish,ȱcontinueȱtheȱphotobleachingȱ
treatmentȱforȱupȱtoȱ18ȱhoursȱmore.
InȱStratasysȱlaboratories,ȱthereȱwasȱaȱtintȱreductionȱofȱapproximatelyȱ
70%ȱwithinȱsixȱhours.ȱAfterȱ24ȱhours,ȱtintȱwasȱreducedȱbyȱ
approximatelyȱ90%.
Figure 7-2: Illumination chamber Figure 7-3: Desk lamps
More information about this treatment is available in the application note
VeroClear RGD810 Model Material.