Just wrapping up my 1515 build and having the same issue. Checked all connections, disconnected motors from lead screws and nothnig is binding. Not sure where to go from here.
Just wrapping up my 1515 build. Y axis motors are moving at different speeds and binding. rechecked all connections, all seems to be good. Disconnected motors to detect any issues, no binding. not sure where to go from here.
It's always either wiring, or mechanical or settings. No way around that - recheck (or redo) wiring on the motor that stalls. Test with lower acceleration and max rate values. And check mechanicals (shaft coupler grub screws being a popular one)
