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Jon Enriquez
(@jon-enriquez)
New Member
Filament sensor

Hello ,  I had bought 2 Mk3s printers back in July and got them assembled ,  Both work great but I did notice that one of them has an intermittent filament sensor , At first it worked perfect , feeding the filament without any problems , after a few days I noticed I had to insert the filament several times before it would respond and feed , this led to no response at all from the sensor and needing to switch to manual feed mode which is how I have been using this printer the last couple months ,     I decided to look at it today and pulled the cover off the top and also removed the filament sensor itself , The swinging lever moves freely and springs back away from the magnet just like it should , it doesn't bind up at all ,    The sensor itself though seems to be not positioned correctly ???  

I played around with the position and how tight the sensor was secured down but the best I can get it to perform is it will feed after inserting the filament about 3 times , rapidly removing it seems to help trigger it to start feeding ,   Is the sensor itself needing replacement ir is there any tricks for installing or repairing this issue ??

 

Thanks in advance 

Posted : 12/12/2020 11:38 pm
richnormand
(@richnormand)
Estimable Member
RE: Filament sensor

Take a look at the fourth post in the thread:

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-help/filament-auto-loading-doesnt-work/#post-223061

 

also look at the reading from the software in the menu to see if it is indeed detected correctly.

Hope that will help.

 

REPAIR, RENEW, REUSE, RECYCLE, REBUILD, REDUCE, RECOVER, REPURPOSE, RESTORE

Posted : 12/12/2020 11:44 pm
Jon Enriquez
(@jon-enriquez)
New Member
Topic starter answered:
RE: Filament sensor

Ok so I was doing some searching on the forums and saw where someone had suggested on shimming up the sensor just a tad .

I did just this and it seems to have fixed the issue !

Posted : 12/12/2020 11:58 pm
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