The stepper motor break out board I used is made by Planet CNC. Being an Apple and Linux user I had to find a board that not only worked with Windows. The great thing about this board is the fact DWG files can be sent directly without a toolpath generator . This board works really well with Kirimoto CAM toolpath (freeware) software for STL files.
I assume you need a 3 axis controller for your project.
Planet cnc make boards for 3 to 9 axis machines!