Put a Raspberry Pi4B on your Prusa Mk3S and have it align perfectly with the frame.

• Smallest form factor possible for a Pi4.
• Space for an optional Pimoroni Fan Shim.
• All peripheral ports accessible (not the Pi headers).
• Break away window for Pi-cam - version without added.
• Windows for status lights.
• Slim attachment block to frame.
• Uses styling cues from the Einsy Case with chamfered corners and textured sides
• Easy to print: no supports needed.

Edit: added a new version of the top part (picase-top-compact.stl) which is more compact to allow this to fit with [https://www.prusaprinters.org/prints/3267-led-light-bar-prusa-i3-mk2mk3](https://www.prusaprinters.org/prints/3267-led-light-bar-prusa-i3-mk2mk3)

Uses:

• 4 M3x16 for the case
• 2 M3x10 for attaching to printer

A complete redesign inspired by the Prusa Einsy Case and:

• [https://www.thingiverse.com/thing:3723561](https://www.thingiverse.com/thing:3723561)
• [https://www.thingiverse.com/thing:3004038](https://www.thingiverse.com/thing:3004038)

Print instructions

0.2mm
20% infill
PETG
No supports

4 M3x16 for the case
2 M3x10 for attaching to printer

1. Widen the holes on your Raspberry Pi (and fanshim) just a bit for the M3 screws.
2. Pierce the sacrificial bridges inside the screwholes on the top shell.
3. Put Pi in top shell and place bottom shell on top.
4. Screw in 4 M3x16.
5. Align on the back of your Prusa MK3 and screw in 2 M3x10.
6. Plug in