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Octoprint turned off my filament sensor?  

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Nick
 Nick
(@nick-5)
Active Member
Octoprint turned off my filament sensor?

Hi all,

I recently got octoprint added to my setup. I have an i3 mk3s+ with an MMU2s, and I’m using a raspberry pi zero 2 for octoprint. I let a print go on its own to test the Timelapse feature using the octolapse plugin, and when I came back the print had failed. The printer was continuing like it was printing, but the end of the filament was several centimeters from the hot end. I verified that the filament sensor is reading correctly. Any idea what happened here?

Posted : 11/01/2022 5:54 am
Neophyl
(@neophyl)
Famed Member
RE: Octoprint turned off my filament sensor?

Dont run Octo myself but possibly https://github.com/prusa3d/Prusa-Firmware/issues/3148   or https://community.octoprint.org/t/resume-does-not-check-tool-bed-temperatures/39107

Posted : 11/01/2022 7:00 am
towlerg
(@towlerg)
Noble Member
RE: Octoprint turned off my filament sensor?

Not sure how MMU complicates things but possibly the problem is that the printer reacts to filament runout but does not tell Octoprint who blithely continues to send GCode. I think that the latest version of printer firmware enables the marlin features required to signal pause from the printer. 

Posted : 11/01/2022 12:32 pm
Nick
 Nick
(@nick-5)
Active Member
Topic starter answered:
RE: Octoprint turned off my filament sensor?

It looks like I have the latest firmware, 3.10.1. I’m also not sure how the filament managed to get retracted like it was, unless the MMU decided to pull it back for no reason

Posted : 11/01/2022 1:00 pm
Sang
 Sang
(@sang)
New Member
RE: Octoprint turned off my filament sensor?

I was printing with my MK3s+ with  MMU2 printing in single filament mode,  last night my print ran out of filament but kept going and completed with no errors but my print was incomplete. Is there any way to configure the Octoprint so that it can pause, or have it switch to alternate filament color, should I use MMU2 option and not single mode to make this happen?

Posted : 08/03/2022 5:38 pm
AlexanderS
(@alexanders)
New Member
RE: Octoprint turned off my filament sensor?

If it runs out of filament the "Spool Join" Firmware settings will instruct the MMU2 to switch to the next filament color.
https://help.prusa3d.com/en/article/spooljoin-mmu2s_134252

There is a niche use of SpoolJoin when printing multi-material models. If you have a two-color print and, in PrusaSlicer, set it to use Filament 1 and 3, there is now a spare spool loaded to Filament 2. This will be used when Filament 1 runs out. In addition, Filament 4. and 5 can be loaded before printing with the same intention, substituting for Filament 3.

Posted : 16/03/2022 1:47 pm
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