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Crystal Clear action run.png

Release status: working

Mondrian2 7.jpg
Description a modular cartesian RepRap
License GPL
Author Emmanuel
Based-on FoldaRap
Categories Mondrian
CAD Models GitHub
External Link Flattr, flickr, Thingiverse

Here is what I wanted to try among the possibilities to make a Foldable RepRap.

I didn't pursued the XY-head + telescopic Z because I couldn't get my head around how to do it properly at this moment.

But after having seen the Create it gave me some new ideas, for another concept after the FoldaRap, it then evolved toward this cartesian but modular architecture, the folding plane idea will have another name :)



  • Printed Parts: 30
  • Non-Printed Parts: +/-400 (counting every washer/bolt/etc)
  • Material Cost: 100€
  • Cost: 600€
  • Printing Size: length of choosen extrusion minus 100mm (=100^3 for 200mm ; 200^3 for 300mm ; 350^3 for 400mm ; etc.)
  • Resolution : XY = 0.0125 mm ; Z = 0,00025 mm with m5 rods
  • Accuracy : 0.1 mm
  • Speed: 50 - 500 mm/s (print-travel, max speed tested yet)

Special features

  • Modular/scalable design (with the same printed part you can build a small cube or a big plotter frame, just choose accordingly your length of extrusions/belt)
  • Based on standard/cheap 20x20mm aluminium extrusion (with 6mm slot)
  • The frame is the linear guide for X, Y, Z axis
  • Easy to build, with few tools
  • 1.75mm Direct Driven Bowden Extruders (dual-head)
  • small footprint : lenght of extrusion plus 40mm (240x240 for 200mm ; 340x340 for 300mm ; etc.)
  • Big Blue Power Switch

Naming Convention

  • Mx_xxx : Mondrian (non-foldable verion), version, print volume in X, Y, Z (in dm, add +/- 15cm for the footprint)
  • then you can build things like : M222, M333, M763, or even a huge M999

FoldaRap2-M763 Lasercutter.jpgMondrian2 332 333 3310.jpg

To Do

  • dual-extrusion settings
  • x-addon for the chocolate extruder of LaurentF. from LabFab
  • mini-cnc addon [66]
  • foldable Z axis, for a "flat" printer that expand as it print
  • bio-printing


Exemples of size scaling



Mondrian2 332 333 3310.jpg

From left to right (3310, 332, 333)


A huge Mondrian, using 70cm and 100cm profiles

External links, media/press, etc.

  1. Github mentioning an "awesome" project among others ^^

More inspiration

  • H-XY
  • Direct sliding on the aluminium frame