Filament sensor (on MINI) & Octoprint

Martin H

(@martin-h)

Active Member

Filament sensor (on MINI) & Octoprint

Hi, I'm now to Octoprint, and I was curious what I need to do to make it use the optional filament sensor that comes with the printer. Will it work 'out of the box', do I have too configure something, or I'm I out of luck?

Thanks!

Best Answer by cmumford:

From the 4.1.0 release notes: "Note: While printing over the serial line, the printer ignores the filament sensor, even when properly connected. However, it works for the filament change. The developers are working on a fix for the upcoming firmware release." (link)

Posted : 12/07/2020 9:11 pm

Robeena Shephe...

(@robeena-shepherd)

Estimable Member

RE: Filament sensor (on MINI) & Octoprint

I don't think you need to do anything, I think as long as you enable it in the Prusa Mini's own menu then the Mini will pause the print if it detects the filament has run out. Make sure you have the latest firmware, which already lets you pause a print from the Mini itself.

Posted : 13/07/2020 11:04 pm

Peter

(@peter-22)

New Member

RE: Filament sensor (on MINI) & Octoprint

@robee

Hello, I just experienced, that the filament sensor does not work with Octoprint. Fortunately I have noticed it and saved the print.

I have no idea, if it should work with Octoprint. Can anyone help?

Posted : 17/07/2020 7:59 pm

TrevS

(@trevs)

New Member

RE: Filament sensor (on MINI) & Octoprint

@peter-maga

I had the same problem today. Octoprint never acknowledged that I ran out of filament. Filament sensor works fine when printed from usb.

Posted : 17/07/2020 9:52 pm

cmumford

(@cmumford)

Active Member

RE: Filament sensor (on MINI) & Octoprint

From the 4.1.0 release notes: "Note: While printing over the serial line, the printer ignores the filament sensor, even when properly connected. However, it works for the filament change. The developers are working on a fix for the upcoming firmware release." (link)

Posted : 18/07/2020 3:53 pm

Robeena Shepherd liked

Peter

(@peter-22)

New Member

RE: Filament sensor (on MINI) & Octoprint

@cmumford

Thanks for your reply.

Posted : 18/07/2020 4:01 pm

jagr200

(@jagr200)

Member

RE: Filament sensor (on MINI) & Octoprint

Any update on this? Still not working on my mini. Works fine on my MK3s.

Posted : 17/08/2020 2:16 am

Gordon W

(@gordon-w)

Reputable Member

RE: Filament sensor (on MINI) & Octoprint

@jagr_200

Keep an eye on https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/739 it seems that a fix is being worked on.

Posted : 17/08/2020 7:39 am

FoxRun3D

(@foxrun3d)

Famed Member

RE: Filament sensor (on MINI) & Octoprint

@gordon-w

Well, six months later, my print still died because the filament runout wasn't triggered... Sad

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 05/02/2021 8:39 pm

cwbullet

(@cwbullet)

Member

RE: Filament sensor (on MINI) & Octoprint

I finally added a second filament sensor to make sure octoprint stops the print.

--------------------
Chuck H
3D Printer Review Blog

Posted : 18/04/2021 3:25 pm

bigk251

(@bigk251)

Active Member

RE: Filament sensor (on MINI) & Octoprint

Can you elaborate? Just another one in series? How did you hook it up so it would detect and send the signal?

Thanks

Posted : 10/11/2021 5:05 pm

cwbullet

(@cwbullet)

Member

RE: Filament sensor (on MINI) & Octoprint

I no longer need the second sensor. It was attached to octoprint. Now, it works.

Posted by: @bigk251

Can you elaborate? Just another one in series? How did you hook it up so it would detect and send the signal?

Thanks

--------------------
Chuck H
3D Printer Review Blog

Posted : 11/11/2021 12:02 am

bigk251

(@bigk251)

Active Member

RE: Filament sensor (on MINI) & Octoprint

I thought it was fixed too, but I just had a print fail because the sensor didn’t notify a filament change.

Posted : 11/11/2021 12:39 am