Motors not working

[hunt529]

I have a Rostock MAx V3.

I recently had a thermal fuse blow. While I was trying to diagnose the problem I think I created a new problem.

I have fixed the thermal fuse and the HE280 is now functioning properly.

While I was trying to diagnose the problem, I first took out all the connections to the Rambo and took it out and examined it.

I replaced all the wiring per SeeMeCNC guides.
I reinstalled the firmware.

THe problem I am having now is none of the motors are working.

I checked the F2 fuse and it's working. I even swapped the F2 and F3 fuses with each other just to be sure.

Any ideas? what could cause all the motors to stop functioning other than the fuse.

David

[AlanKilian]

If you manually move the carriage down away from the limit switches and type G28 into a terminal, does anything move?

[hunt529]

The carriages will move, as the motors are not "locked".

G28 commands don't do anything. No motor movement commands work, including extruding.

[thechewiestbacca]

Did you clear the EEPROM before reinstalling the firmware? Not sure if that matters, but it has solved problems for me before...

[hunt529]

@thechewieesttbacca -- the eprom clear wasn't the issue

I solved my issue. When I had unplugged all the wires from my Rambo to examine it I then plugged them all back in.

The main power coupling, specfically the looping red wire on position 3 -- had become loose enough not to make an electrical connection but it was still in position.

pictured here: https://d17kynu4zpq5hy.cloudfront.net/i ... VoX.medium

Once I tightened it -- the circuits got powered and away we go.