MMU2S upgrade problems. Help needed
OK here is the lowdown of what has happened. Installed MMU2S and the upgrade to the new MK3S extruder that came with the MMU2S Kit.
Issue number one was getting the z adjusted. -0.375 was the winning spot. With help from FaceBook got that figured out. Now the real issues are starting.
First color print went OK. Second print was a single color. Third print was 2 color but had failure when retracted filament looped its reel and caused a knot. Had to replace the hot end PTFE tube. A few load filament issues but not bad. Had a ton of temp failures as well. I re-flashed the firmware and then ran wizard. Seemed fixed. FIrst layer z still around -0.375
MORE WORSE STUFF - had to readjust z again. Now down to -0.180
Printing rewinder - had a layer shift. Looking at options I decide on a different approach to fixing the retracted loop problem.
First part print for loop box - https://www.thingiverse.com/thing:3241474
Went well.
Second part ready to print. Nozzle to close to the printbed. Readjust z - now down to -0.007
Third part. same as the second. Had to readjust z but could not adjust as 0.000 is as far as it would go. Print aborted.
Decide to rerun the set up wizard as maybe that will point me to right direction. Nozzle dragging and printer immediately shut off. WhenI turned it back on I am stuck at the "Hi I am your original PRUSA. Would you like me to guide you through setup? Yes or No" . And thats where it is stuck.
I am about to remove the MMU2S as before I installed it I ran a good 2 miles of filament through with no issues. Most disappointing.
ANY help would be appreciated.
Jeff