March 19, 2026
Description
This mounts to the side of the 400 mm enclosure with M6x16 socket head screws, through the existing holes. Use 4 M3x8 screws and M3 heat sinks for the side of the panel. I didn't like the buttons on the earlier models, so this uses flexing tabs, best printed in PETG. Use M3x10 screws to hold in the HDMI7. Needs 270 degree HDMI adapter and 90 degree flat USBC adapter to direct the cables out the back. I printed it with 15% gyroid infill, and 6 vertical shells, no supports are required. There is a “designed in” support for the cable opening that needs to be cut out after printing.
Update: I got my extension cables to connect it up, and I added cable management on the side of the enclosure to support the cables going back to the RPi.
I included the FreeCAD model if anyone wants to edit it.
This design is rather robust because I am rather clumsy. And I have now field tested it. It survived being walked into and being hit from underneath by my head, so I consider it a success.
I couldn't find any instructions on installing KlipperScreen, but it turns out that following the “manual install” instructions works well.
https://klipperscreen.readthedocs.io/en/latest/Installation/#manual-install
Just make sure you continue to the instructions on how to rotate the screen and rotate the touch pointer. This link is to the rotating screen display instructions, and at the bottom of this section there is a link to the instructions for rotating the touchscreen input.
https://klipperscreen.readthedocs.io/en/latest/Troubleshooting/Rotation/
Update: I improved the FreeCAD model with a VarSet that has the dimensions for the bolt holes. I also added a “recessed” version that does not extend beyond the front panel if anyone prefers this. I mainly did this for anyone that wants to use it with hinged front doors. The recessed version allows the doors to open 180 degrees.
I adjusted the bolt holes so they would work with either 400 mm or 500 mm RR with this modification by Peter Piquet (warning - I don't have this modification and per the comments these may not work so check the bolt hole locations before printing):
https://www.printables.com/model/1063453-hinges-for-split-doors-for-v-core-4/files
The 400 mm and 500 mm standard RatRig panels have the same spacing, so separate designs are only needed for Peter's panels.
License:
GNU General Public License v3.0
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