Tiny Spider - Eyeball

Cinderwing3D Tiny Spider Eyeball.stl

Fidget Femur

Such a weird design. I have no other explanation.

This fidget femur uses a print-in-place ovoid joint to create and unique tactile movement. This joint type is stronger than the interlocking double ring joints used in many articulated designs, so this design is more suitable for use as a fidget or children’s toy.

See here for video: https://youtu.be/br1-jSqgU18

Like a “ball and socket” joint, the oval-shaped ovoid from one segment is held in place by a similarly shaped socket in the neighbouring segment. Varying the relative dimensions of the ovoid and socket allows for precise control of the movement between each segment. In this design, lateral side-to-side movement is maximized, but rotation and up/down movement is slightly restricted. 
You may get some small adhesions between segments. Simply apply a bit of force to move the joint the first time, and it will be fine after that.


Baby Nightwing 2025

Cinderwing3D Baby Nightwing 2025.stl

Tiny Spider - Cauldron

Cinderwing3D Tiny Spider Couldron.stl

Tiny Spider - Crossbones

Cinderwing3D Tiny Spider Crossbones.stl

Birthday Dragon

CW3D Birthday Dragon CLICKER.stl

Horse - Hatchling

CW3D Horse Hatchling Colors.3mf

Owl - Cinder Hatchling

Cinderwing3D Owl Hatchling.stl

Chicken - Hatchling

CW3D Chicken Hatchling.stl

Tiny Spider - Heart Cookie

CW3D Heart Cookie Tiny Spider.stl

Tiny Bear

CW3D Tiny Bear.stl

The Impossible Gear Fidget

The gears and shaft rotate on this model even though it prints in place. 

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)


Pig - Hatchling

CW3D Pig Hatchling.stl

Whatchamahoozit 2026

Whatchamahoozit_2026.stl

Baby Holly Wyvern

CW3D Baby Holly Dragon.stl

Baby Bumblebee Dragon

CW3D Baby Bee Dragon.stl

Cow - Hatchling

CW3D Cow Hatchling.stl

Mushurtle

Mushroom Turtle_Big Cap.stl

Pumpkin Cookie Tadling 

CW3D Pumpkin Tadling Keychain.stl

Inferno Articulated Dragon

Inferno Articulated Dragon.stl

print-in-place

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Tiny Spider - Eyeball

Fidget Femur

Baby Nightwing 2025

Tiny Spider - Cauldron

Tiny Spider - Crossbones

Birthday Dragon

Horse - Hatchling

Owl - Cinder Hatchling

Chicken - Hatchling

Tiny Spider - Heart Cookie

Tiny Bear

The Impossible Gear Fidget

Pig - Hatchling

Whatchamahoozit 2026

Baby Holly Wyvern

Baby Bumblebee Dragon

Cow - Hatchling

Mushurtle

Pumpkin Cookie Tadling

Inferno Articulated Dragon