OpenGrid Lite Tool Wall for Prusa Enclosure (Snap‑Mounts)

The Project

I wanted to add an OpenGrid Lite storage wall inside my Prusa Enclosure because I kept losing my tools.  Since the spools already live on the outside, it made sense to keep all the tools contained within the enclosure.

I mounted the grid on the left side because I’m right‑handed.

Everything is printed in PETG for the extra heat resistance.

There are five mounting snaps, each numbered so you can place them in the correct positions. The snaps hold well and there isn't too much wobble when the printer is going.  When you are mounting other snaps.  You must support the perspex from the outside when inserting them — otherwise you risk cracking the enclosure window.

Open Source for the win! 

Big thankyou for Prusa Reserach and David D for releasing their CAD models for the enclosure and Opengrid (respectively).  Open source enables all sorts of fun projects.  In this case, I used FreeCAD to find the exact hole locations for each snap, and the alignment was perfect on the first try. You could say this ended up being a fully open‑source project!

The reference Layout

Construction

The OpenGrid Lite setup uses two 5×6 boards and one 7×6 board. You’ll need to trim a small section from the top and bottom boards because part of the enclosure frame protrudes into that space. I simply mounted the boards first, identified the interference points, and used flush cutters to remove the needed material.

The larger board sits between the two smaller ones, joined with the standard OpenGrid connectors.

For the snaps: depending on the hole location, you’ll push out the original rivet and replace it with a 12 mm M3 bolt from the outside. The printed hole sizes worked well for me — the bolts self‑tapped cleanly. If yours don’t, you can widen the hole slightly, use a longer bolt with a nut, or drop in a heat insert.  Maker’s choice.

Where the spool holders mount, you’ll need to replace the original bolt with a longer 20 mm M3 bolt and push it through from the inside.

And Done!

A clean, modular OpenGrid wall inside the Prusa enclosure. Fully aligned, and fully open source.