User's Manual

DOC-07000 Rev. A 7–3
Objet500 - Connex 3 User Guide
Figure 7-1: Balco WaterJet Cleaning Unit
Tocleanamodelusingthisdevice,youplaceitinthechamber,andyou
manipulateitandthejetusingthebuilt‐in,waterproofsleeves.Apump
turnsordinarytapwaterintoahigh‐pressurejet,andawiperkeepsthe
windowclear.
Removing Support Material with Caustic Soda
Soakmodelsina2‐percentsolutionofcausticsoda(sodiumhydroxide)to
removesupportmaterialfromdifficult‐to‐reachareasandtogivethe
modelasmooth,cleanfinish.Theamountoftimeyousoakthemodelinthe
solutiondependsonhowdelicateitisandhowmuchsupport
material
needstoberemoved,butitistypicallybetweenhalf‐an‐hourandseveral
hours.Inanycase,youshouldremoveasmuchsupportmaterialas
possiblebeforethecausticsodatreatment,andrinse themodelthoroughly
(withawaterjet)afterwar ds.
Use caution when cleaning delicate models with high-pressure water
systems.
WARNING: Caustic soda may cause chemical burns, scarring and
blindness. Mixing it with water generates heat that could ignite other
materials.Take adequate safety precautions; always use nitrile gloves
when handling caustic soda and models soaked in it.