Ventilation Grille for Official Prusa MINI Enclosure

Make your MINI look like a CORE One!
This ventilations grille replaces the clear acrylic panel at the top of the enclosure and can be printed entirely on your MINI.

Required Parts
4x  M3 screws (4mm is ideal, but longer is fine)
4x  M3 nuts

Printing
- PETG or ABS recommended
- 0.2mm layer height
- 4 perimeters
- 25% infill
- Print 2 of the Vent Panels with the triangle indicator facing up. I printed these one at a time, oriented diagonally across the bed. Use supports around the outer edge.  PrusaSlicer will complain about being outside of the printable area, but I had no issues.
- Print 2 of the Sliders.  No supports needed.
- Print 1 Coupling.

Assembly
- Insert the sliders into the vents.  Align the arrow indicators and start with that edge.  Press the parts together until the small center nub snaps into place.

- This is the hard part and depends on your printer's tolerances.  Flex the vent until the other edge of the slider clicks into place.  Once they're together, if it doesn't slide easily, press the together until you hear another click and the slider moves freely.
(If you absolutely can't get the slider into the vent, you can use a hobby knife to shave a bit of material off of the vent.)
- Use the coupling and M3 screw and nuts to join your two completed halves together into a single unit.

- Remove the acrylic panel from the top of your enclosure. Pull the plastic rivets out with a plastic trim tool or CAREFULLY with a small pliers or side cutter.  I was able to reuse mine, but if they break, you still have the spares that came with the enclosure…right? :)

- Insert the completed vent into the opening from the bottom (inside the enclosure).
- Re-insert the plastic rivets and press them until they lock.

And you're done!  You can now pretend that you have a miniature CORE One!  …and open/close the vents as needed to maintain correct enclosure temps without leaving the door open.