There are two different designs for this project: a “smaller cube” for our 2mm pitch 64x64 matrices, or “bigger cube” for 2.5mm matrices with curb-cut frames. The 2mm design is particularly challenging, not just for its size, but because the stock frames must be carefully removed from the matrices and replaced with our 3D-printed design. Skim through the steps and take some time to reflect on your personal degree of patience and kit-building skill.

Once you choose a design and have parts ordered, you can start on the 3D printing, which might take several days to complete. The next few pages discuss the 3D parts…but if the printer’s still working, you can skip ahead to get started on the electronics, then return to this section later.

Small Cube CAD Assembly

The stock frames are removed from the 2mm pitch RGB panels and replaced with 3D printed counter parts.

Each frame requires 8x magnets.

The Raspberry Pi 4 and LIS3DH breakout are secured to the Pi Mount. The Pi mount uses magnets to attach to the panels. 

Big Cube CAD Assembly

The 2.5mm RGB panels feature curb cut frames with 45 degree bezels. Four of the six panels are secured together using side mounts. The remaining two panels use brackets with magnets and are detachable from the four panels.

The Raspberry Pi and LIS3DH breakout are secured to the Pi mount. The Pi mount uses magnets to attach to the panels.

Slicing Small Cube Frames

Use PLA filament that is tested and proven to product strong parts. Reference the following slice settings for best results.

  • 220C Nozzle Temperature
  • 60C Heated Bed
  • 0.4mm Line Width
  • 2x Wall Line Count
  • 10% Infill Gyroid
  • 6x Top/Bottom Layers

Slicing Bigger Cube Brackets and Mounts

Use PLA filament that is tested and proven to product strong parts. Reference the following slice settings for best results.

  • 220C Nozzle Temperature
  • 60C Heated Bed
  • 0.4mm Line Width
  • 2x Wall Line Count
  • 10% Infill Gyroid
  • 6x Top/Bottom Layers

Frames for Smaller Cube

Each frame features labels with letters and numbers.

The numbers represent the panel number.

Pi Mount for Smaller Cube

The Pi Mount for the smaller cuber features mounting holes sized for M2.5 hardware and 1/4in diameter 1/8in thick magnets.

Pi Mount for Bigger Cube

The Pi Mount for the bigger cuber features mounting holes sized for M2.5 hardware and 1/4in diameter 1/8in thick magnets.

Brackets for Bigger Cube

These brackets are secured to Panel #5 and Panel #0 only using M3 hardware screws.

Each bracket uses 3x magnets.

Print 8x of these brackets.

Side Mounts for Bigger Cube

These side mounts are secured to Panels 1, 2, 3 and 4 using M3 hardware screws. 

Each side mount uses 2x magnets.

Print 8x of these side mounts.

This guide was first published on May 04, 2022. It was last updated on 2022-05-04 10:43:22 -0400.

This page (3D Printing) was last updated on May 20, 2022.

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