Starting to make my shopping list and I was a couple steppers short so I hopped on Ebay and found
this setup. Basically it's a 4-axis driver board, 4 78oz-in steppers and a 200W power supply. I thought "heck, that might be useful." I plan on etching my own Gen7 board, but I thought getting a commercially available driver board might be another solution to making my own, especially if it comes with new steppers and PSU. (I don't really need all that, but maybe somebody else does.) Am I wrong in thinking the driver board simply takes a signal from the main board and essentially amplifies it? So, basically any driver board can be run by an Arduino or Atmel?
What would be a good minimum torque motor? I have a couple 70 oz-in and I think a 60 (maybe smaller) and a couple old desktop printers still waiting for dis-assembly.
Several years ago I built a CNC machine and I tested it with Mach3 and a 3-axis driver board from EasyCNC (IIRC). It ran great but I was too busy to devote time to learning how to convert my shapes to G-code and tool paths so I sold it. But I've always wanted to get into rapid prototyping and CNC milling, maybe now's the time.