X & Y Stepper drivers overheating while IDLE (so not yet homed)
I am running a V-Core 3 with RATOS2.0 on M8P with CM4 and 2209 (and EBB36) with latest Klipper and updated system. While yesterday the printer was functional, I powered down and this morning I restarted the printer. Now I noticed a clicking sound which I now believe was the steppers resetting due to overheating. I narrowed it down to the X & Y motor overheating.
Stuff I have seen but can not explain: -I checked that cables and the appear ok. -If I disconnect both cables (Left and Right) from the steppers and reboot, the stepper of the left motor immediately overheats (I have a thermistor on the heatsink) and it goes to 80degr C so I switch off the printer. -I take out the Left motor stepper (as I thought it might be defect). Right Stepper still in the board. When I connect the Right Motor to the Right stepper, The Motor actually Locks (no movement). When disconnecting the motor hire, the full gantry moves as normal. -I have switched this Right motor stepper to the Left motor bay in the M8P (no motor wires connected) and it too overheats,... I am a bit puzzled how to continue error finding... Also, I have a Fan blowing over the M8P as I normally run the Performance settings, with steppers reaching temps in the range of high 30degr C. Above problem remains when I switch to the "Uncooled" setup. Printer.cfg attached... Any Pointers in the right direction are appreciated.
Stuff I have seen but can not explain: -I checked that cables and the appear ok. -If I disconnect both cables (Left and Right) from the steppers and reboot, the stepper of the left motor immediately overheats (I have a thermistor on the heatsink) and it goes to 80degr C so I switch off the printer. -I take out the Left motor stepper (as I thought it might be defect). Right Stepper still in the board. When I connect the Right Motor to the Right stepper, The Motor actually Locks (no movement). When disconnecting the motor hire, the full gantry moves as normal. -I have switched this Right motor stepper to the Left motor bay in the M8P (no motor wires connected) and it too overheats,... I am a bit puzzled how to continue error finding... Also, I have a Fan blowing over the M8P as I normally run the Performance settings, with steppers reaching temps in the range of high 30degr C. Above problem remains when I switch to the "Uncooled" setup. Printer.cfg attached... Any Pointers in the right direction are appreciated.
11 Replies
this sounds a lot more like a hardware issue than a software issue, i'd go ask in #bigtreetech as well
@arthur_cos Can you post your klippy.log too?
( I'll drop a link in there,... I was not sure about the policy about cross posting...)
@arthur_cos your log seems to be full of:
It sounds like something is shorting your x and/or y drivers.
I'll let the experts chime in, i'm not sure where to go from here short of switching to other slots and perhaps new drivers.
I have some spare 2209's but am looking for some root causes, otherwise I have 3 or 4 broken steppers (i.s.o. 1)... Also checking the fuses in the board but can't find any specs of the fuses...
Hardware issue. Both stepper drivers (left and right gantry) fried,.... how,... ? No idea,...
(i.s.o. 1).what does that mean?
(i.s.o. = In Stead Of,... It's an TLA)
TLA = Three Letter Abbreviation
Problem not solved BTW. Right motor freezes up on boot-up. suspect damaged motor as I replace the Manta with a spare unit,....
Should / Can I move this thread to the appropriate subthread? #bigtreetech or #general-electronics or #archive_fix-my-printer ?
It's very hard damaging a stepper motor outside of burning through the wires.
and yes, it's not RatOS related, so that seems appropriate.
(if only I knew how to do this.... Close this one and make a new one in #fix-my-printer ?)
Pretty much yes 😄
Close this thread. Continue here: https://discord.com/channels/582187371529764864/1091301167272820736