Gents, I recently purchased a very cheap 3D printer on eBay, the kit is made by Geeetech, it's a reprap copy. It got me thinking that this could also be used on my future CNC project. The bad news is that can't connect it to my Mac, the software drivers just don't work, I've tried everything. I've connected it to windows computer and it does get detected so the electronics works. If anyone has ideas, please let me know? I'm now looking at buying a secondhand Windows pc! Info from Geeetech wiki page.... GT2560 - Geeetech Wiki Cheers N GT2560 is a compact board that is integrated with the mighty function of the Arduino Mega2560+Ultimaker and Arduino Mega2560+ramps 1.4 on respect of both software and hardware and has more premium features: the streamlined interfaces effectively avoid the unnecessary troubles, well-regulated compaction of components highly integrated saves more space and easier to be mounted on most applications. 5 stepper motors, swappable driving modules, mighty ATmega2560 processor with 256k memory, 16MHz operating frequency, high-performance USB serial converter FT232RQ, all these make the GT2560 an ideal option for a 3D printer control board. What’s more, GT2560 can run over 12V to 24V which gives higher torque and higher rotation rate.