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Entropy Dice - automated dice rolling machine 3D Printer File Image 1
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Entropy Dice - automated dice rolling machine

Printerman avatarPrinterman

December 29, 2025

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Description

This is a automated dice rolling machine, it rolls three dice in a tube and reads the result with OpenCV, Python on a Raspberry Pi 5.  Equipment used:

  • Raspberry Pi 5

  • Pi Camera 2

  • DRV8825 stepper driver

  • NEMA17 12v/0.22NM steppermotor

  • 50mm clear circular acrylic glass window

  • Screws, M4 and M3 of various lengths.

  • Wires for connecting electronics

Software is programmed in OpenCV, Python. System works by using blob-detection to find dots, and grouping the dots to dice with dbscan. Three dice are used, but with a bigger tube more can be measured at the same time.

License:

Creative Commons — Public Domain

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