I am having problems printing PolyDissolve S1 (PVA) supports with a Taz Pro. (Actually a Pro S with dual extruder installed.
Last problem first because it concerns me most. I have quite a lot of burned PVA caked on Extruder #2. The printhead nozzle seems to be clear but the surrounding area is black.
Is this bad for the machine?
How can I clean it?
The next problem is that the PVA will not feed consistently. The Idler Adjustment Knob on the M175 print head is rather touchy feely (Hand tight and back off 1-2 turns), The Dual Extruder’s have indicators that should be set to the middle setting. Is this absolute or merely a starting point?
I was trying to print my entire supports with Extruder #2 (PVA) but switched to Extruder #1 (PLA) supports with only the “roof” printed from Extruder #2
In either case, I will either get “Extruder 2 Filament Error” or the PVA will not stick and forms curly clumps. Often these clumps are darkened like they are partially burned.
The only thing I have tried so far is trying to adjust the Idler adjustment knob and I have no idea what to try next.
TAZ Pro S
#1 Hatchbox 3mm Glow PLA using Standard PLA (3D Fuel) profile (Diameter corrected)
#2 PolyDissolve S1