MMU Firmware 1.0.1 is available
Looks like MMU firmware 1.0.1 is available now: https://github.com/prusa3d/MM-control-01/releases
Direct link to hex file: https://github.com/prusa3d/MM-control-01/releases/download/v1.0.1/prusa3d_fw_MMU2board_1_0_1.hex
There is no menu option to perform the bowden tube calibration for each pulley.
This isn't an official guide but this is how I managed to do the calibration for each filament. Please let me know if something is incorrect.
1. Keep machine off
2. Cut fresh angled tips and load 5 filaments past the pulleys
3. Turn machine on while holding middle button of MMU
4. Hold middle button during entire boot until lights 1 and 5 are the only ones lit up.
5. Press left once so 1 and 4 are lit up.
6. Press center button.
7. Now this is where it's different from before. Now you select which filament to calibrate by going left/right or pressing center to start.
8. It appears you may have to hold the center button for about a second to start the calibration rather than just tapping it.
9. Adjust the filament up/down with left/right to your desired position and press center to save and unload that filament.
10. Move on to the next filament with left/right.
11. Repeat steps 8-10 for each filament
12. Press the reset button on the MMU after saving the 5th filament.
13. After it reboots the MMU I turned off the power switch and let it reboot from scratch just to be safe.
Re: MMU Firmware 1.0.1 is available
Thank you. Your instructions were spot on.
I now have all 5 filaments correctly calibrated. 🙂 🙂 🙂 🙂 🙂
Re: MMU Firmware 1.0.1 is available
Thanx joey.c2 !
I think I got qiuet big difference in gear size so this was needed.
Good guide, thumbs up 🙂
Mk3S+, Mk4 MMU2S never worked properly
Re: MMU Firmware 1.0.1 is available
It doesn't say the build number anywhere, making it hard to know if I should replace my 1.0.1-117 with this or not.
There is no menu option to perform the bowden tube calibration for each pulley.
Could it be you meant "now"?
2. Cut fresh angled tips and load 5 filaments past the pulleys
I debate on this a lot - for 99% of the changes, the tip will be as-retracted, not freshly cut, so the real concern to me is where it ends up in use.
I will trim a long string off a tip, but generally I leave an as-formed tip for the calibration.
12. Press the reset button on the MMU after saving the 5th filament.
13. After it reboots the MMU I turned off the power switch and let it reboot from scratch just to be safe.
You can exit the menu by moving selector all the way to the right (past position 5) and pressing the main button.
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