Stratasys Objet24 - Replacing Print Heads

Operating & Maintaining the Objet24 3D Printer
6–40 DOC-34014 Rev. C
21. ChooseReplacefaultyhead(s)ifyouarepreparedtoreplacetheprint
headsnow.
or—
ChooseAbortwizardifyouwanttoreplacetheprintheadsatanother
time.
Toreplaceprintheads,youneedthesetoolsandmaterials:
• replacementprinthead(s)
• isopropanol(IPA—isopropylalcohol)orethanol(ethylalcohol)
• disposablecleaninggloves(suppliedwiththeprinthead;oruse
anyclean,powder‐freeprotectivegloves)
• asuppliedcleaningclothorequivalent
• thescalesuppliedforuseintheHeadOptimizationwizard(Weight
Test)
• theMissingNozzlesruler
Ifyouarereplacingprintheadsnow,thewizardguidesyouthroughthe
procedurewhenyouclick
Next.Continuewith“PreparingthePrint Block”
onpage 42.
Replacing
Print Heads
Theconditionoftheprint headsdirectlyaffectsthequalityofprinted
models.Youmayneedtoreplaceaprintheadifoneormoreofthe
followingsymptomsoccurs:
• TheHeadOptimizationwizarddeterminesthataprintheadis
defective.(See“Optimizing(Calibrating)PrintHeads”onpage 30.)
• Therearenoticeablegroovesinthesurfaceofprintedmodels.
• Visualinspectionoftheheadrevealsthatitssurfaceisdamaged—
peelingorbubblesinthenozzlearea.
• Theprinterinterfacedisplaysawarningormalfunctionmessage
relatingtoaprinthead—
 HeadHeatertemperaturetimeout
 HeadHeaterthermistoropen
 HeadHeaterthermistorshort
Replace print heads only after consulting with a Stratasys-authorized
customer-support engineer.
Replace print heads only after consulting with an authorized customer-
support engineer.