i HAVE A 2003 SHOPBOT PRT 4X8 TABLE AND CONTROLLER HAS GONE POT. THE MOTORS ARE STILL GOOD. THEY HAVE THIS INFO ON THEM. VEXTRA A6497-9412KTG 2 PHASE .5 DEGREE PER STEP AND ARE 4 WIRE @4.39OHMS
AS FAR AS I KNOW I AM LOOKING FOR BREAKOUT BOARD, DRIVERS FOR 4 MOTORS , 2 ARE ON THE X,   POWER SUPPLY,  ETC.
CAN ANYONE RECCOMEND WHAT I SHOULD GET. SHOPBOT IS EXPENSIVE ON PARTS
THANK YOU

Hi,

I recently finished a complete electronics and software upgrade to my Shopbot PRT 48 X 96 CNC Router using Mach3.  I replaced all the electronics with the exception of the Stepper Motors.  I am running a modified Mach3 2010 Screen Set.

I would be glad to share any information I have gathered during this process.  I have also put together a video on the retrofit process with highlights of all the hardware and software that I utilized in the process and associated costs.  If you would like a link to the video just send me a private message.

John