Weird thing. My Marlin driven Sanguinololu sometimes stops mid printing,

Weird thing. My Marlin driven Sanguinololu sometimes stops mid printing, always at roundabout the same heigth (22-23mm). Temperature drops, my display says “Sleep” and I see the percentage running on to 100% but no printing anymore. Does anyone know what could cause this? I checked the cables and stuff and it all seems right. I can start a new print right after this happens without problems.

I first suspected my gcode might be wrong. But it doesn’t matter if I slice with Cura or Slic3r.

Trying again with all the M106/107 commands removed from the gcode. Seems there is some problem with those commands. Printing as I write this. Hoping it helps.

Nope. Didn’t help. Stops at 22.30 mm. Shows “Sleep” and after 20 seconds homes X and Y and that’s it. Weird. Worked since a year. Didn’t change anything. Will try some older Gcode tomorrow.

Are you printing from SD?

@Thomas_Sanladerer yep