I sent a message to the supplier and they agreed to send me a replacement for the broken controller board.
If it arrives, that’s when I will believe it, that’s great.
If not, I’ll have to use an Arduino UNO and some TB6600 stepper motor drivers I have laying around along with one of the two spindle motor speed controllers I have.
/Mayday 2020/06/16
Mayday DIY audio 