Model unknown. However specifications are:

• Speed: 50.000 RPM
• Maximum voltage: 50 V
• Maximum current: 6 A

Speed controller is from the company Glyn.de. The actual driver has to be realized still. Based around 6 N-Channel Mosfet, a suitable gate driver is the IRS2110. Combined with IR3710 or whatever

• http://www.heise.de/hardware-hacks/links/1302147 from c't hardware magazine

• http://shop.uberclock.com/products/smoothieboard
• 4a drivers: http://www.omc-stepperonline.com/bipolar-stepper-motor-driver-max-4a-current-40vdc-input-16-subdivision-st6600-p-246.html

• http://www.worldofcnc.com
• http://www.banggood.com/CNC-Micro-Stepping-57-Stepper-Motor-Driver-2M542-Switch-Controller-p-80886.html
• http://www.banggood.com/250mm-Ball-Screw-SFU1605-Ballscrew-with-Single-Ballnut-for-CNC-p-1001627.html
• http://community.carbide3d.com/t/great-results-milling-pcbs-from-eagle-with-the-nomad/283 practical usage experience.