Dead FINDA  

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jeffrey.r10
(@jeffrey-r10)
Eminent Member

A MMU2 print just failed when unloading.  I checked the Support/Sensor screen, and the FINDA value was set at 1.  There was no no filament or debris inside the loading area.  I reflashed the MMU2 with the latest firmware with no change.
I removed the FINDA entirely, and it still shows a value of 1.
But, when bending the FINDA cable, it flashes 0 occasionally.  My unit never had an LED that lit up, so I can't use that as debug.

I assume this means that the FINDA is damaged, unless someone has an idea of what it could be.  I emailed Prusa support last night, but did not get a response today.

I found a couple replacement devices in the US on Amazon

$7.99. but I am not sure this is the right part.  The description looks right.
  https://www.amazon.com/Twidec-Inductive-Proximity-Detecting-LJ12A3-4-Z/dp/B07P2KTHK8/

$12.99, but there is a note that someone successfully used in a MMU2 clone   https://www.amazon.com/Taiss-LJ8A3-2-Z-Cylinder-inductive-Proximity/dp/B073XC45CC

Anyone have any suggestions here?

Posted : 04/03/2020 11:07 pm
Nikolai
(@nikolai-3)
Noble Member

I would suggest you contact the PR online support and let you ship a replacement (if it's really broken).

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram...
Posted : 04/03/2020 11:23 pm
jeffrey.r10
(@jeffrey-r10)
Eminent Member

Thanks nikolai.  I tried to post a question last night, but the site rejected my question.  And I have NEVER gotten a reply when asking a MMU2 question to info@prusa3d.com.  I applaud all of you who have gotten the MMU2 working, and who get responses from Prusa.  I don't want to sound like a whiner, but I am really fed up.  But, I will try the online Contact form one more time, per your suggestion.

 

Posted : 05/03/2020 1:28 am
Nikolai
(@nikolai-3)
Noble Member

@jeffrey-r10

e-mail contact takes a long time. Please use PR online support chat. You will find it on the shop site if you login in the bottom right corner.

Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram...
Posted : 05/03/2020 1:56 am
jeffrey.r10
(@jeffrey-r10)
Eminent Member

Thanks.  I did finally get through to someone and they are sending me a replacement FINDA.

Posted : 05/03/2020 3:17 am
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