Free 
Whirly Gig Launched Edition (Contest Entry Version)
Thingiverse
Hobby & makers
3D-модели шестеренок и цепных переходников
Ищешь что-то для механических поделок? Тут собраны модели шестеренок, переходников под цепь и даже фиджет-игрушек. Все файлы бесплатные, печатаются без проблем на обычном принтере. Я сам пару раз брал подобные штуки для апгрейда велосипеда - вроде норм.
This collection is written in Russian; the search itself works in any language.
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Modular Chain Drive & Gear System
Cults3D
Free 
CHAIN Spinning FIDGET Toy
MakerWorld
Free 
Flexible Fried Egg
Thingiverse
Free 
A1 Bed Drag chain / Cable Chain
MakerWorld
Free 
Geared Heart -Single Print with Moving Parts - Last Minute Gift
Thingiverse
Free 
Chain Link Bracelet
MakerWorld
Free 
Screw (Crossed Helical) Gear Drive Model
Thingiverse
Free 
Fidget Gear Chain
MakerWorld
Free 
7 inch vinyl adapter-Thomas-daft punk
Thingiverse
Free 
Chain-Link Fidget Spinner
MakerWorld
Free 
B2D Extruder - Strong and Silent Bowden Extruder
Thingiverse
Free 
Chain lube adapter
MakerWorld
Free 
Poltergeist
Thingiverse
Free 
Chain Link Fence (Parametric)
MakerWorld
Free 
Campbell Planter - Fully 3D Printed Self-Watering Planter
Thingiverse
Free 
Heavy Duty Chain Coupling Link
MakerWorld
Free 
3D Printed Pendulum Clock
Thingiverse
Free 
KC3DShop SWIVEL LINK 3.0
MakerWorld
Free 
Bike Chain Cleaner - Toothbrush version
Thingiverse
Free 
ChainMaker - Parametric chain generator
MakerWorld
Free 
Nerf Hyperfire gears
Thingiverse
Free 
Gears And Chain Fidget Toy
MakerWorld
Free 
Another gear fidget keychain
Thingiverse
Free 
SPORTS CHAIN NEW LINKS & LOGO MEDALLION CONNECTORS
MakerWorld
Free 
Smartphone Teleprompter - Tripod Adapter
Thingiverse
Free 
gear chain cleaning
MakerWorld
Free 
"DreamOfProps Upgrade" for Trauma Team Helmet
Thingiverse
Free 
Chain lube adapter
MakerWorld
Free 
Nerf Rapidstrike gears
Thingiverse
Free 
Sehr kleines Kettenglied
MakerWorld
Free 
Customizable box / psu / power adapter bracket / holder
Thingiverse
Free 
Chain Links for Rally Chains
MakerWorld
Free 
Flexi-Turtle Ear Saver
Thingiverse
Free 
Engine Adapter for Manual Transmission
MakerWorld
Free 
Smartphone Timelapse - Tripod Adapter
Thingiverse
Free 
Bike With 3D Printed Gears
MakerWorld
Free 
Geared Spinner
Thingiverse
Free 
Technic Axle to DC Motor Adapter
MakerWorld
Free 
Balloon Powered Radial Engine
Thingiverse
Free 
KC3DShop 6mm Swivel Chain Link
MakerWorld
All 3D model categories
The full catalog of topics — from home & household to CNC, searchable across the connected sources.