In the past I thought I had read where someone has sent their board in for repair. I did ask how much on this forum but never received a reply. I E- Mailed Xylotex and just received a response from Jeff.
Hi,
A 1 year old board would be out of the warranty period.
I do not repair the drive boards. I replace drive boards that are
still under warranty.
I always have both 3 and 4 axis drive boards in stock.
I usually ship the business day after the Paypal payment has been
received.