Planetary Gearset Retractable Keychain Model 2
thingiverse
A sleek retractable keychain/badge holder with intricately designed moving planetary gears is now available. This latest design builds upon my previous creation, boasting a significantly smaller and lighter profile while featuring an incredibly easier assembly process.  [full preview](https://gfycat.com/jampackedforcefulcod) To complete this design, several non-printed components are required: - A high-quality clockwork spring approximately 3-4mm in width (alternatively, you can salvage one from a cheap mass-produced retractable keychain/badge holder) - A nylon string measuring around 1m in length - Six M2x12 screws - Four M2.5x8 countersunk brass screws upd: I have added a STEP file containing the entire keychain assembly for your convenience
With this file you will be able to print Planetary Gearset Retractable Keychain Model 2 with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Planetary Gearset Retractable Keychain Model 2.