Kossel Mini SmartLCD-Case

by schlotzz, published

Kossel Mini SmartLCD-Case by schlotzz May 4, 2014
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A simple case for the RepRapDiscount SmartLCD controller on a Kossel Mini with 15mm extrusions. It features an SD card slot and an emergency halt button.

Note: The knob for the rotary encoder is not part of this thing. I've used http://www.thingiverse.com/thing:6194


  • Slice model and print case and button separately. I used Slic3r with 0.2mm layer thickness and a 0.5mm J-Head nozzle. Printing a few buttons at the same time improves their quality due to a longer cooling time between layers.
  • Use wire cutter, knife and file to clean out the SD card slot support structure.
  • Use 2mm drill to clean mounting holes on button.
  • Mount button inside of case with 2x small screws. The button should move freely inside of its hole and return to its initial position on its own.
  • Use 4x M3x8mm screws, washers and nuts to mount case in front of your Kossel Mini.
  • Insert SmartLCD controller board into case.
  • Use 4x M3x6mm screws to mount board inside of case.
  • Connect controller board with data cables.
  • Attach knob on rotary encoder.
  • Have fun with your controller case. ;-)

Note: Using a different color for button and knob looks more fancy ;-)

What you need

Parts used (BOM):

  • 1x case (printed)
  • 1x emergency halt button (printed)
  • 1x knob (printed, not part of this thing)
  • 4x M3x6mm allen head screws
  • 4x M3x8mm allen head screws
  • 4x M3 washers
  • 4x M3 nuts
  • 2x small wood screws, about 2x5mm

Tools used:

  • wire cutter
  • knife
  • small flat file
  • 2mm drill

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Awesome! Looks so much better then the original one and have a much nicer viewing angle too. Thanks!

The holes on the case don't seem to match up with my kossel mini with 2020 aluminium extrusion.

the holes are vertically 29mm centre to centre where as the aluminium extrusions are around 36-38mm apart at there centre. Is that normal?

Me too. But has a tight fit with only two screws.

Hi lankygibbon. I'm sorry to hear that the printed case doesn't suit your 3D printer. As stated in the description of this thing, it has been designed for a Kossel Mini with 15mm extrusions, like Johann C. Rocholl's original Kossel Mini design (see http://reprap.org/wiki/Kossel).

My apologies completely missed that I'm just trying to learn some openscad now to hopefully add the needed material and space. Thanks for the great design.

You're welcome ;-)
Thanks for your feedback.

How do I remove the assembly from openscad? I want to save it as CSG to edit in FreeCAD

I don't know if this is for a different LCD to the one that I have, but I couldn't get my LCD panel to fit. I ended up printing out this one: http://www.thingiverse.com/thing:465962 which fit perfectly.

Kossel 800 gadgets
by ruilin

Thanks for this cool design. As I still have problems with printing very high things, instead of doing a vertical print I did a puzzle cut version to print this in two parts on my Kossel mini. I uploaded it to http://www.thingiverse.com/thing:749196 (my first upload to thingiverse, I hope I did everything right attributing your work!), in case this might help somebody.

Kossel Mini SmartLCD-Case cut up for small printbeds

Hi schenckj. Thanks for sharing your remix of the puzzle cut lcd case and for your proper attribution :-)
I'm looking forward to seeing some photos of your version...

Turned the thing around by 90 degrees and printed vertically with support on my Mini Kossel. Turned out great, thanks!

Hi imyz. Thanks for sharing your feedback. Would you mind posting an image/make of your print? I'm interested in how it looks being printed vertically...

Me too, turned out good also. Used MeshMixer to flip and did the worm support thing

Hi dnk17. Thanks for your feedback. Would you mind posting a make with a picture of your support structure?

Sure, I will, but at the moment I am on a business trip. Will do when I return.

I ignord it for some days - but now I have to add such a neat reset knop as well. Nice colors, BTW. :-)

Thanks for your feedback!

How did you make the front look so nice, smooth and shiny in the photos? That should be the first layer stuck to the bed so you should be able to see all the infill lines. Did you paint it?

Hi brucehvn. I printed this case on my Prusa i3 with a heated bed and a layer of window glass on it. It's not painted, just printed directly on glass ;-) That creates this shiny and smooth finish.