MMU3 filament load failure
I have a MK4 that I upgraded to a MK4S and then I added a MMU3. It printed perfectly fine after the S upgrade. I can load all filaments to the MMU and it will print through the MMU3 if I pre-load all of the way to the print head. However, if I start a print without a filament loaded all of the way to the print head or there is a color change then it fails to load the filament all the way to the print head.
What I have done:
- I have made sure the filaments are trimmed and loaded in the MMU before starting the print
- Shortened the PTFE tube to minimum length
- Re-flashed the MMU
- Re-flashed the printer
- Removed and added printer in Prusa Slicer
- Uninstalled and reinstalled Prusa Slicer
Please help.
This is the first problem I have had with this printer in the 2.5 years I have owned it. I don't have the time to dig into the settings every print. Nor do I have the desire to manipulate G-code to get it to work. I am a hobbyist and I want to print multiple color prints and I am pulling what little hair I have out messing with this thing.
Thank you in advance for y'all's help.