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MK3 resets randomly mid print  

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vincent.l7
(@vincent-l7)
New Member
MK3 resets randomly mid print

I've received the MK3 kit some weeks ago, and successfuly printed for dozen of hours, but my printer started to reset during prints since a week.

It seems random, it can reset both after a few layers or after a couple of hours, or even not at all during a 2-3 hour job.

It happens with different models, different slicers.

The psu does not seems damaged.

It started to happen while a Raspberry Zero was attached, but it also occurs without.

I've tried with and without CrashDetection, filament detection, normal/stealth modes.

I've read some previous posts about the same symptoms, but there is no official response from Prusa on them AFAIK, and it seems there is no actual consensus about the problem.

I've tried the "ground the board fix" described here https://shop.prusa3d.com/forum/others-archive--f66/mk3-resets-while-printing-t14657.html#p70923 but it did not fix my issue.

has anyone encountered this ?
I have not yet contacted Prusa support, is there a chance I can get some help from them, given the erratic behavior of my problem ?

Here is a video of the problem happening (reboots at 28 sec)

Posted : 19/06/2018 8:42 am
Nospoon
(@nospoon)
Eminent Member
Re: MK3 resets randomly mid print

Same thing happened to me yesterday during the first skirt line.

Posted : 27/06/2018 10:04 am
Tiago
(@tiago)
Reputable Member
Re: MK3 resets randomly mid print

Check every conection to the board, try to replug everything and make sure is tight fit

Posted : 27/06/2018 4:13 pm
e..duane.r
(@e-duane-r)
Active Member
Re: MK3 resets randomly mid print

After printing great for two months I had this same problem (random resetting during printing) which was very difficult to solve. In the end it was a faulty power supply (the OEM PSU that came with my kit). The problem was solved when I replaced the OEM PSU with a Meanwell NES 350-24. This PSU delivers 14.6 amps and has a fan as compared to the OEM with 10 amps and no fan.

Prusa did replace the original PSU but I decided to stay with the Meanwell.

If you were printing successfully before I suggest you try another PSU and see what happens. Good luck with this problem.

Posted : 28/06/2018 2:19 am
Nospoon
(@nospoon)
Eminent Member
Re: MK3 resets randomly mid print

Interesting thing is, I never had this issue before (had the printer for couple months now), but recently it happens on nearly every print.

Posted : 30/06/2018 4:20 pm
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