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Printer resets itself all the time  

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Lups
 Lups
(@lups)
Eminent Member
Printer resets itself all the time

Hi,

so this issue I only have when the MMU2 is connected. I start a print then the printer does the bed leveling and then just before the filament starts loading the printer resets. I tried it 3 or 4 times always the same result. Same happens when I choose to load to the noozle. The printer heats up and then when the temperature is reached. Boom reset and the printer reboots.

Any idea?

Thanks

Posted : 23/04/2019 4:41 am
toaf
 toaf
(@toaf)
Noble Member
Re: Printer resets itself all the time

are the mmu2 light flashing?

I have a Prusa,therefore I research.

Posted : 23/04/2019 5:43 am
Lups
 Lups
(@lups)
Eminent Member
Topic starter answered:
RE: Printer resets itself all the time

Yes the light is blinking green. Sometimes the filament goes down, then up again then down again and up and then shows an error. 

Posted : 24/04/2019 11:06 am
timothy.d
(@timothy-d)
Active Member
RE: Printer resets itself all the time

I am having the exact same problem.  I've been able to run a menu initiated First Level Calibration, but the printer resets just as described above when trying to print from SD.  Firmware on Mk3S = 3.7.0-2201, MMU2 = 1.0.5-297

Posted : 26/04/2019 3:46 am
Lups
 Lups
(@lups)
Eminent Member
Topic starter answered:
RE: Printer resets itself all the time

I think it is the IR sensor. I had issue with it all the time. It showed 0 even with the filament loaded. So I disconnected the MMU and printed out

the idler again. Now it works. But still not perfect. Here is the file I used for the reprint:

https://github.com/prusa3d/Original-Prusa-i3/blob/MK3S/Printed-Parts/STL/extruder-idler-mmu2s.stl

 

 

 

Posted : 26/04/2019 1:47 pm
timothy.d liked
timothy.d
(@timothy-d)
Active Member
RE: Printer resets itself all the time

That's awesome!  I'm vapor locking on where to observe the IR sensor status, is that noted on the LCD?

Thanks!

Posted : 26/04/2019 4:57 pm
Lups
 Lups
(@lups)
Eminent Member
Topic starter answered:
RE: Printer resets itself all the time

Yes go to menu item status and then there is a menu item with sensors 

Posted : 26/04/2019 5:08 pm
timothy.d liked
timothy.d
(@timothy-d)
Active Member
RE: Printer resets itself all the time

Thanks!  😀 I just read the manual for the 3rd time and finally saw it in Section 7.1.  Don't know why I glazed over it in previous reads.

Posted : 26/04/2019 5:10 pm
timothy.d
(@timothy-d)
Active Member
RE: Printer resets itself all the time

Success!!  In my case it was the FINDA that was triggering inappropriately.  Now  5 layers into my first multi-material print!  

Thanks!

Posted : 27/04/2019 12:42 am
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