New issue...filament unload runs backwards??
Out of nowhere I'm having a ton of issues with the MMU2S. As mentioned here ( https://forum.prusa3d.com/forum/original-prusa-i3-mmu2s-mmu2-hardware-firmware-and-software-help/mk3s-rebooting-when-mmu2s-loads/) it was rebooting when it tried to load. Now it just won't load.
I have to imagine the PIDNA is calibrated correctly as I've tested it on the machine multiple times using the support -> sensor test. I can see the light turn off when filament enters, and I can manually load filament and watch the sensor test flag it with a one instead of a zero.
The weirdest thing is that when you go to unload the filament using the menu, it starts pushing it TOWARDS the nozzle. I've never had that happen before as it used to just back it out. I know the PIDNA is correct because the LED is off when the filament is loaded, so the unit should understand that there is filament in there.
Has anyone seen anything like this?
RE: New issue...filament unload runs backwards??
OK, starting 10 minutes ago, everything is fine. This MMU2S needs some work :/.
RE: New issue...filament unload runs backwards??
@farina
My idler was a little wobbly that caused me to have some problems similar to yours. I printed another and all is fine. While I was at it there is a printable upgrade available for the cutter of the mmu2s, I did that as well.
Phil
Stay safe and healthy, Phil