CARTBOY Switch game case

CARTBOY V1_Case_Small.STL

Keychain Blaster Gift Crate

Weapon Gift Crate - Bambu Project.3mf

Sword of Omens – Sword Kit | No Supports, No AMS, No Glue

Ash Grey.stl

Darting Doe - Articulated Fidget Deer - Ludo Animal

Darting Doe.3mf

Happy Pumpkin

Body.stl

Flexi Baby Angry Chameleon

BabyChameleonV02.stl

Phase I Clone Chunker - Star Wars Clone Trooper Kit | No Supports, No AMS, No Glue

Charcoal Black.stl

The Rail - Sanding Disc Bins

The Rail - Sanding Disc Bins.3mf

Ahsoka Bust (Pre-Supported)

bust.stl

Red Dragon Bust (Pre-Supported)

Dragon.stl

Articulated Pokémon - Rayquaza 

Full plate curled.stl

Tornado Tower Fidget Toy

Tornado Fidget by Ruven Bals.3mf

Sunflower Dragon

Cinderwing3D Winged_SunflowerDragon_Colors.3mf

Light Heart Dragon

Cinderwing3D LightHeartDragon.stl

Umea mini - a table lamp in boho style

Umea mini shade.3mf

Skull Phone Holder - Home Decoration

Bloom Planter Pot by MODERN MACHINE

BLOOMPLANTER.stl

Taro Bathroom Set - Toothbrush Holder

Taro Bathroom Set - Toothbrush Holder.3mf

WALNUT coasters

coaster.stl

The Impossible Planetary Gear Fidget

This is a mix of the [Impossible Gear Fidget](https://social.thangs.com/m/700537) and the [Planetary Gear Demo]( https://thangs.com/designer/3dprintingworld/3d-model/Mini%20Planetary%20Gear%20Print-in-Place%20Demo-50395).  This fidget uses planetary gears, it’s a great way to better understand how they work. 

**Demonstration**
If you hold the carrier(middle gear) and turn the sun(top gear), you get at 3:1 speed reduction.  This ratio is a result of  the 36 teeth on the ring gear divided by the 12 teeth on planet gears. If you hold the ring(bottom gear) and turn the sun(top gear), you get a 1:4 speed reduction on the carrier(middle gear). The is because the much larger diameter ring gear is moving faster than the smaller sun gear. The equation works out to be the 36 teeth of the ring gear divided by the 12 teeth of the planet gear plus 1. If you hold the sun gear and spin the ring gear and the carrier, there is no reduction and it acts like a bearing

No supports!

Printed on the [Mulcore]( https://github.com/3dprintingworld/Mulcore)

**Support and Licensing**
If you would like to help support more free models, or get permission to sell physical copies of my models, consider joining my [Patreon]( https://www.patreon.com/3dprintingworld)


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CARTBOY Switch game case

Keychain Blaster Gift Crate

Sword of Omens – Sword Kit | No Supports, No AMS, No Glue

Darting Doe - Articulated Fidget Deer - Ludo Animal

Happy Pumpkin

Flexi Baby Angry Chameleon

Phase I Clone Chunker - Star Wars Clone Trooper Kit | No Supports, No AMS, No Glue

The Rail - Sanding Disc Bins

Ahsoka Bust (Pre-Supported)

Red Dragon Bust (Pre-Supported)

Articulated Pokémon - Rayquaza

Tornado Tower Fidget Toy

Sunflower Dragon

Light Heart Dragon

Umea mini - a table lamp in boho style

Skull Phone Holder - Home Decoration

Bloom Planter Pot by MODERN MACHINE

Taro Bathroom Set - Toothbrush Holder

WALNUT coasters

The Impossible Planetary Gear Fidget