Open Source Stepper Motor Drivers

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  • Pololu Stepper Motor Drivers - 2.2A with heat sink - [1]
  • TinyG - 2.5A - [2]. $129 off shelf - [3]
  • StepStick from RepRap project - [4]
  • Big Easy by Brian Schmalz - from Sparkfun - 2A - Open Source Project - [5]
  • Microcontroller based driver - 3A - AVRSTMD - [6]
  • OThers from RepRap project - [7]
  • From RepRap - 3D printer controller board with 5 stepper drivers at 1.9A - $250 - [8]