I recently purchased a 1984 Wells Index 320 with a Heidenhain TNC 145 control. The control was inoperable and for the work I am looking at I feel I need a PC. I am doing mold making and the G-code files are huge. The machine has 3 DC servos which I would prefer to reuse. The labels are gone on the X and Y motors. I am pondering using the Gecko drives but I have no idea which one I need. Can anybody provide a bit of guidance

Thanks