The Rail - Sanding Disc Bins

The Rail - Sanding Disc Bins.3mf

Ahsoka Bust (Pre-Supported)

bust.stl

Cake Hat Goose Gear for Porch Goose

PorchGooseCakeHatBLANKSTL_FunFam3D.stl

8x8 MU - Center Grid Interfitted - MultiBoard Octagon Plate - x2 Ironing Stack

8x8 MU Core - Multiboard Border Tile - x2.stl

Red Dragon Bust (Pre-Supported)

Dragon.stl

CARTBOY Switch game case

CARTBOY V1_Case_Small.STL

Articulated Pokémon - Rayquaza 

Full plate curled.stl

Darting Doe - Articulated Fidget Deer - Ludo Animal

Darting Doe.3mf

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

Charcoal Black.stl

Sunflower Dragon

Cinderwing3D Winged_SunflowerDragon_Colors.3mf

Tornado Tower Fidget Toy

Tornado Fidget by Ruven Bals.3mf

Happy Pumpkin

Body.stl

Umea mini - a table lamp in boho style

Umea mini shade.3mf

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

Ash Grey.stl

Bloom Planter Pot by MODERN MACHINE

BLOOMPLANTER.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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The Rail - Sanding Disc Bins

Ahsoka Bust (Pre-Supported)

Cake Hat Goose Gear for Porch Goose

8x8 MU - Center Grid Interfitted - MultiBoard Octagon Plate - x2 Ironing Stack

Red Dragon Bust (Pre-Supported)

CARTBOY Switch game case

Articulated Pokémon - Rayquaza

Darting Doe - Articulated Fidget Deer - Ludo Animal

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

Sunflower Dragon

Tornado Tower Fidget Toy

Happy Pumpkin

Umea mini - a table lamp in boho style

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

Bloom Planter Pot by MODERN MACHINE

The Impossible Planetary Gear Fidget

Dark Heart Dragon

Flexi Big Foot

Skull Phone Holder - Home Decoration

Taro Bathroom Set - Toothbrush Holder