Tentatively calling it fixed, was quite an emotional roller coaster
Win 10 didn’t want to let me upload the image, bit of googling eventually fixed that - everything back in the machine, one Y axis motor dead, stepper driver ok, cable and motor ok but socket dead?
No spare board, cried a little inside, went to go and find the screen for the SKR board in my box of misc control boards and stepper drivers and what do i find, a Ramps 1.6 board I don’t even remember buying, faith in humanity restored, mpcnc looks like its running again on my quick test.
Also that new UI is much slicker, I really should try and keep up to date with firmware.
I guess we’ll never know if it was the board or the software, but thanks for sticking with it, you help was much appreciated.