Hi, I’m new to this forum and I have a question. I’m upgrading a used Airwolf 3d Dual Direct corexy printer. The printer uses an Ultimachine Rambo v1.3 board with on-board stepper drivers. When running the prints the driver chips on the board get hot, as much a 225 F. . Does anyone know if this is normal or should I add some heat sinks and /or an active cooling fan.? The printer doesn’t seem to skip any steps and prints fine, but I am worried about burning out one of the drivers and having to replace the board.
Any opinion/advice would be appreciated .
Shouldn’t NEED heatsinks – 498x drivers have underside thermal pads that are soldered to the PCB, and then the PCB acts as a big heatsink. The 4982 has thermal overload protection so it will 100% shut itself down and skip steps before it takes heat damage. But sticking a heatsink on top or dropping the motor current 10-20% won’t hurt.
225F is pretty hot…