Assemble the Mover

A fully 3D-printed belt that smoothly delivers bricks right under the camera. It’s like a red carpet for LEGO pieces.

Assemble the Mover
A fully 3D-printed belt that smoothly delivers bricks right under the camera. It’s like a red carpet for LEGO pieces.

Designing a conveyor belt for the sorting machine might sound like the easiest part. Well, it’s not. It took me countless iterations to arrive at a setup that met every requirement:

  • Affordable (under $10)
  • Operates reliably on 5 volts
  • Quiet
  • Prevents LEGO bricks from rolling off
  • Runs for 24 x 7
  • Assembly in 5 minutes

At first, synthetic leather seemed like the perfect solution—but the bricks had other ideas and kept rolling off. Adding a textile layer solved the slipping problem, yet after a few months of continuous 24/7 operation, the material began to fray and break apart.

In the end, I decided to design my very own 3D-printed belt. Using OpenSCAD—programming fully parametric 3D models, love it!

Follow along!

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