If you are using another board for this build, the case likely won't fit. You can either modify the design for your needs or go without the case.

This project will be assembled with just a few 3D printed parts, described below. The parts are available in either the STL (older) or 3MF (newer) format. Most slicers support both. You'll need to print multiples of some parts:

Main Case

  • 1 x Case Top.stl
  • 1 x Case Bottom.stl

Speaker Retainers

If you're using the 4mm 0.25W speaker from inside the bear:

  • 2 x 4mm Thick Speaker Retainer.stl

If you're using an upgraded Adafruit 2mm 0.5W speaker:

  • 2 x 2mm Thick Speaker Retainer.stl

Slicer Settings

The specific setting values aren't that important with this case. However, here's the settings used to print the case for this guide.

For the larger case parts:

  • 20% infill
  • Supports on build plate enabled
  • 0.2mm Layer Height

For the small speaker retainers:

  • 20% infill
  • 0.2mm Layer Height
  • No Supports

Parts Details

Case Bottom

The Raspberry Pi and Motor HAT will be housed here

Case Top

The speaker and MAX98357 will be attached here

4mm Thick Speaker Retainer

These retainers are for the 4mm thick speaker that you can harvest from inside the bear.

2mm Thick Speaker Retainer

These are for holding the thinner 2mm 0.5W Adafruit speaker upgrade.

This guide was first published on Apr 04, 2023. It was last updated on Mar 26, 2024.

This page (3D Printing) was last updated on Mar 08, 2024.

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