So, my machine quit moving in X, stepper emitting a high pitched squeal.
Since I had a spare motor I slapped it in.
No movement and same squeal, bummer.
Swapped board connectors, Y right with X. Noise went away, steppers operated. Swapped connectors to proper connectors, powered on SO3, no noise, operation ok.
Began air cut test after homing etc, after about a minute and a half X stepper began to squeal and stopped moving. Y and Z movement ok.
Question: is this an issue with the board? Or?
2/13/19. After days of troubleshooting the cause was, ahem, corrosion on the male pins on the Molex connector mounted on the SO3 board. This caused intermittent faults with whatever motor connector I swapped.
I know, corrosion, what…how…huh? Wish I’d taken a picture before I cleaned ‘em up.
I was thinking it was a driver problem but kept coming back to SMT packages don’t typically fail intermittently. They work or don’t work, in my limited experience anyway.
SO, STEPPER PROBLEMS? CHECK ALL YOUR MOLEX CONNECTORS FIRST. Kinda like making sure the tool is plugged in before you start replacing parts. Duh