OpenSCAD fully parametric honeycomb mini PC case

This is a fully parametric OpenSCAD mini PC case designed as a long-running hobby project. The main idea was to create a customizable PC enclosure made from honeycomb side panels, where the walls are joined edge-to-edge and the top and bottom plates lock into the honeycomb structure like a construction kit.

The model was originally designed for my own mini PC build, but I decided to share it because the concept may be useful for other custom enclosures, small form factor PCs, electronics boxes, router cases, NAS-style projects, or other DIY hardware builds.

Main idea

The case is generated from an OpenSCAD script. By changing the parameters, you can adjust the size, panel layout, front panel, rear panel, lids, connectors, honeycomb pattern, and other important dimensions.

The enclosure consists of:

• Four vertical honeycomb side panels;

• A top lid;

• A bottom lid;

• Internal corner inserts/connectors;

• Screw holes along the panel edges;

• Optional front and rear panel features.

The panels are joined at the edges. The top and bottom lids have rectangular tabs that fit into the honeycomb openings, making the whole structure feel more like a modular printed construction kit than a simple box.

Parametric features

The OpenSCAD script allows you to configure many parts of the enclosure, including:

• Overall case width and height

• Wall thickness

• Honeycomb cell size

• Honeycomb web thickness

• Front panel layout

• Rear panel layout

• Motherboard I/O opening

• Power inlet opening

• Top and bottom lid parameters

• Lid tab size, spacing, and clearance

• Edge screw hole count and placement

• Internal connector type

• Connector dimensions

• Screw hole diameter

The script also includes an assembly preview mode, so the complete enclosure can be checked before exporting individual parts.

Front and rear panels

The front and rear panels are configurable separately.

The current version includes a front control area with square openings and LED holes. The rear panel includes a motherboard I/O opening and an additional opening for a power inlet. These dimensions and positions can be changed directly in the OpenSCAD parameters.

Internal connectors

For additional strength, I designed internal corner inserts that can be placed inside the case and fastened with screws through the side panels.

The script supports connector layouts such as:

• 1+1

• 2+1

These internal inserts help reinforce the corners and make the enclosure more rigid.

Possible future improvement

One useful addition, not included in the current version, would be an internal divider plate between the motherboard and the power supply.

This can likely be done by modifying either the top or bottom plate logic and adding a suitable internal panel. However, this requires careful work with the honeycomb geometry, because the lid tabs and honeycomb openings are part of the mechanical locking system.

Printing notes

I printed the model on a Bambu Lab A1 mini using PETG.

The parts printed successfully on the first attempt. I did not experience any noticeable warping, and the honeycomb panels printed normally.

Of course, results may depend on your printer, filament, slicer settings, bed adhesion, enclosure conditions, and the exact dimensions you choose.

Important notes

This model and script were created for my own use. The project is parametric, but changing some parameters may still produce errors, invalid geometry, weak areas, or parts that do not fit correctly.

Before printing, I strongly recommend:

• Checking the full assembly preview in OpenSCAD

• Inspecting all clearances

• Exporting and testing individual parts

• Printing a small test section if you significantly change the dimensions

• Verifying screw hole positions and connector fit

• Checking the geometry around the honeycomb openings

This is a hobby project, not a professionally engineered commercial enclosure, so please treat it as a customizable starting point for your own build.

Material

Tested with:

• PETG

• Bambu Lab A1 mini

Other materials may also work, but I have only tested this version with PETG.

Source

The model is generated from an OpenSCAD script, so you can modify the parameters and adapt the case to your own hardware.