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ProosaXY

CoreXY conversion for Prusa MK3/S. This build is aiming at getting more performance out of your 6 years old machine with the lowest cost possible by re-using most the MK3/S stock parts.

1. Features

  • Better performance (check input-shaper graph bellow).
  • Semi-enclosure by default. Panels mount and top hat parts will be added later.
  • Dual z axis(default) or independent tripple Z axis(Optional) Triple Z (independent or sync based on controller board) by default or dual Z(optional).
  • Single v6 hotend(default) or mixed 2-in-1-out hotend(WIP).
  • Optional AUX cooling fan.
  • Semi-enclosured(default) or Fully-enclosured with top hat(comming soon).
  • Our industrial leading SnakeOil technology :).

2. Status

  • All the main parts design are completed. Test print result are posted in our Discord server
  • All part STLs are exported.
  • Full BOM added 2023/07/11
  • I'm working on a simple build log/manual.
  • For updates, please visit our Discord server

  • The input-shaper calibration is quite good for an 8mm shaft machine, in my opinion. We have a recommended acceleration of about 6000 mm/s2 (which should be used as the limit for outer perimeter acceleration), and a higher maximum acceleration/speed, depending on how fast your motor can run.
  • For some extra speed boost, check my slicer plugin (klipper firmware only)

3. Warning - read this

  • This mod requires some drilling on the original frame, cutting the original motor leadscrew, and linear shafts. This drilling/cutting is easy enough to be done with a hand drill and a hacksaw BUT THERE IS NO WAY BACK. You won't be able to convert back to the original MK3/s machine if you change your mind later.
  • Some small changes/patches might be needed after I have more test data and feedback..
  • To keep the cost down and reuse old components, there are some trade-offs I made:
    • The machine is semi-enclosed by default and will need some printed panels and a top hats to fully enclose it.
    • To match the frame height, cutting the motor leadscrew and linear shafts is required.

BOM

Fabreeko ProosaXY Conversion Kit (Open Beta) available now.

>>> Bill of materials <<<

4. Test run videos and images

4.1 Prusa Mk4 12mins bonker benchy

Mk4 bonker benchy Real-world print
Video bonker benchy test print normal test print
Description I use the setting Prusa used on their mk4 12 mins benchy with accel pump up a little.
Print result (images)

4.2 Images

5. Copyright Notice

This printer design use the following parts from other opensource project:

License