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Looney Gears 3d printed

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White Natural Versatile Plastic
Looney Gears 3d printed Looney Gears
Looney Gears 3d printed Looney Gears

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Looney Gears 3d printed Backside
Looney Gears 3d printed Backside

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Looney Gears 3d printed Detail
Looney Gears 3d printed Detail

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Looney Gears 3d printed Somsky Gears
Looney Gears 3d printed Somsky Gears

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Looney Gears 3d printed Somsky Gears rotated
Looney Gears 3d printed Somsky Gears rotated

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Looney Gears 3d printed 17+13+7=37, center
Looney Gears 3d printed 17+13+7=37, center

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Looney Gears 3d printed 17+13+7=37, left
Looney Gears 3d printed 17+13+7=37, left

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Looney Gears 3d printed 17+13+7=37, right
Looney Gears 3d printed 17+13+7=37, right

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Looney Gears 3d printed 11+13+13=37, mid
Looney Gears 3d printed 11+13+13=37, mid

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Looney Gears 3d printed 11+13+13=37, up
Looney Gears 3d printed 11+13+13=37, up

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Looney Gears 3d printed 11+13+13=37, down
Looney Gears 3d printed 11+13+13=37, down

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Looney Gears 3d printed
Looney Gears 3d printed

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Looney Gears

Made by
$117.44
3D printed in white nylon plastic with a matte finish and slight grainy feel.
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Product Description

Looney Gears is a strange eccentric planetary gearing system. Whereas normal planetary gear systems are symmetrical, this one has no symmetry whatsoever.

This particular set of gears was the result of a challenge by Oskar to Andreas Röver in 2006. Andreas found this nice set of all-primary-numbers gears which is about 0.01% exact.

When Oskar made the Looney Gears, he made the conjecture that there do not exist exact solutions for this type of eccentric planetary gear systems. After seeing Oskar's video of Looney Gears, Bill Somsky proved that there are actually huge numbers of exact solutions for Looney Gears. These exact solutions are now called "Somsky gears". Somsky's discovery and proof showed that Oskar's conjecture (that there are no exact solutions) is wrong.

Watch the YouTube video of Looney Gears.
Watch the YouTube video of the Somsky Gears.
Watch the animation.
Read at the Shapeways Forum.
Read more at the Non-Twisty Puzzles Forum.

Please contact Oskar directly if you are interested in obtaining a fully colored and assembled sample of this puzzling object.

Tags
Gears
Details
What's in the box:
Looney Gears
Dimensions:
9 x 5 x 11.5 cm
Switch to inches
3.54 x 1.97 x 4.53 inches
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Success Rate:
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Rating:
Mature audiences only.
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