I also wanted a CNC for my own lathe. In designing the Frog controller, I thought the idea of sensing the spindle magnetically to achieve synchronization for threading was a good one. And you'll see nice clean long spiral chips that make less mess and are easier to clean up. The Frog controller is really useful and you can't beat the price. Sincerely, Jim Lewis Frog Inventor Pix of me here .
Frogs are currently in stock.