@oliof said in Motor problems on RatRig V-Core 3:
The duet boards are best cooled by blowing a bit of air above and below the board along the drivers.
Hindsight IS def 20/20 here...If I only saw that in the documentation from RatRig when I built it. They did mention that passive cooling should be enough...but the standoffs they provided to mount the Duet 3 Mini 5+ were simply not up to par.
My brother has a real nice O-Scope, so will prob send to him to check it out.
Many thanks again, for your sage advice. You are a credit to the forum here more certainly!
I did post pictures of my wiring and even some FLIR thermal pictures, which did show the drivers getting hot, so I should have realized to check the thermal limits before trying to run some test prints. Doh!
Regarding the Octopus drivers, I agree that the duet PCB wicks better, but with the 120mm Noctua PWM fanmounted directly above the board, I think it will cool down fairly well.
Thanks again for the reply- duly noted.