Parchment Paper Paired With 3D-Printed Grid Gives a Nice Glow

This custom enclosure for a 64×64 RGB LED matrix by [Davisan1001] not only provides a mount point for a Raspberry Pi, but presents a clean and smooth face with square …. Parchment Paper Paired With 3D-Printed Grid Gives a Nice Glow. The first clever thing in this design is the way [Davisan1001] created the grid that acts as a light blocker for each LED in the matrix, preventing light from “spilling” over into its neighbors.

Instead of designing the grid from scratch, the solution was just to uses slicer settings. By printing a flat square with a grid pattern infill and zero solid top and bottom layers, the slicer creates the grid all by itself. A little trial and error was required to get the spacing just right, but it seems to have worked out fine.

We’re not sure it’s better than designing a grid in CAD, but it was certainly a clever way to avoid having to do so. [Davisan1001] also struggled to find an effective and economical solution for a diffuser. Certainly, high-quality diffuser films are available for sale, as are specialty acrylic sheets, but surely there was some household DIY option to do the trick.