The Prusa i3 Rework is a revised version of the third iteration of Prusajr's famous RepRap 3D printer design.

As stated in the RepRap wiki, the following is a list of the improvements made upon the original Prusa i3 design:

  • Extruder upgrade: Support for the Magma Hotend (by Trinity Lab).
  • New cooling fan duct for Magma Hotend.
  • Y idler with a tensioner system.
  • X end idler with endstop holder.
  • Upgrade X end idler in order to support 624 bearing.
  • Y motor with endstop holder.
  • Addition of Z endstop holder.
  • Addition of a Dremel FlexShaft attachment for 3 Axis CNC milling.