I have a used stepper pcb for sale. It doesn't work but one of you techs out there may want to trouble shoot it. It spins the spider/ motor, but doesn't register position to the system, and shows an error. I replaced mine with a board from Mad Amusements and it didn't fit. When I contacted Mike at MA, he told me he would refer me to Great Lake Modular. I haven't heard back from anyone in 6 weeks. I got tired of waiting and ended up bending the connector pins up so the board would fit in the machine. Just a heads up to everyone out there if you want a new board that actually fits to maybe get one from Bay Area Amusements, I've heard they have the boards that fit and they cost less, as well.
Anyway $25 for my old board and I'll send it to you.