Circle Cube with eight planetary gears per side.

• Inventor : Undisclosed forum member
• Mechanism : Gears (Others)
• Patents : Unknown
• Producer : Customly 3D printed
• Year : 2024
• Original Price : Unknown USD
• Average Price : Unknown USD

The Star Forge is a 3x3x3 Circle Cube with planetary gears moving at 1/2 the pace of the faces.
The inventor wanted the ring of planetary gears to move by 1/8 of a full turn after each 3x3x3 turn so that the gears would change position between corners and edges. This proved challenging, because to satisfy this condition a set of regular planetary gears would need to have the same number of teeth in the inner and outer gear, which is physically possible. That's why the inventor went with a layered approach as seen in the pictures below with different sizes of gears in the two layers.
Currently all the faces are 0-type, meaning the centre does not turn with the rest of the layer. It would take only a really minor design change to make 1-type faces and thus all of the crazy variants.
The inventor uses the pseudonym "Blaze".
3D Printed in Jet Black Prusament PLA on my Prusa Mini in October 2023
Edge length: 100 mm
Weight: 540 grams

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This puzzle can be found in 1 collections of these members:

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