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This is part of the RepRap project, see http://www.reprap.org. Gen7 is the next generation of electronics meant to drive a RepRap machine. Focus on this generation is to allow for better replicatabili...

Design Goals

  • PCB easily to manufacture on a RepRap.
  • All parts on one board. Except for the Opto Endstops, of course.
  • Enough components to run a Mendel or Huxley with extruder and heated bed.
  • Easy to set up. For example, this would include an USB port.
  • Well available and cheap parts.
  • Based on the ATmega644.
  • Well suited for community driven development.

Features

  • Single board solution.
  • Single sided PCB.
  • Pololu stepper drivers, exchangeable.
  • 4x stepper motor drivers with 1/16 microstepping.
  • TODO: on-board USB-RS232 converter.
  • Integrated hardware for driving one extruder (stepper, heater and thermistor).
  • Integrated hardware for a heated bed (heater, thermistor).
  • Integrated hardware for driving a fan.
  • Ready to be hooked up on a generic PC power supply unit (PSU).
  • Use of standard connectors.
  • Debug LEDs for power, Fan and both heater outputs.
  • Can turn PSU on and off in software.
  • Reset button.

For more details, see http://reprap.org/wiki/Generation_7_Electronics