Ultimaker keychain gearbox

Simple gearbox that fits on your key chain


Creative Commons Attribution Share Alike

Commercial use is allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

Learn more or download attribution tags




Simple key chain gearbox based on Tony Buser's dissolvable support gearbox. To be printed with support material that is dissolvable, e.g. with an Ultimaker 3.

You can modify the tolerances and such by opening the SCAD file in OpenSCAD.

Important variables you can change are:
- shell_radius = 25;
- ring_radius = 2.1;
- gear_height = 4.5;
- gear_cutout_height = 6;
- gear_z_gap = 0.5;
- case_fillet_mm = 1;

Materials and methods

- Main material could be PLA, Nylon or CPE.
- Support material: PVA



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


D4f078d87015a30df7d51da4909c853e?default=blank&size=40kpadilha added this to the things collection ago
8571ae6bac484818da6aeb9e12f197b8?default=blank&size=40Robert_Trent added this to the Keychains collection ago
4d4c34d111bbe442ed5eb55b905091ec?default=blank&size=40Jwi3d added this to the Things to print collection ago
1a03f606ad0503d6e40fee1c8be66ad6?default=blank&size=40Jeff Ross added this to the Things collection ago
A9360bef28dc8fd036c0165d42a881ac?default=blank&size=40s4scha added this to the Toys collection ago
02c0e4a45277fae90fd149455014b3d2?default=blank&size=40Saqhara added this to the Misc collection ago
Ba1b1fca2b980633d73e7b4c8ec820d9?default=blank&size=40averyjl123 added this to the To Make collection ago
Mini downloadRTP added this to the Things to Print collection ago
08fbb1abb0dabf3648e48ff12d984844?default=blank&size=40p.ho added this to the moving collection ago
54ee6656780ab0a0571abebba3c37aff?default=blank&size=40Arjen Breur added this to the Things to make collection ago
E4466884504e7453bc6e3ae085f59d53?default=blank&size=40Riptide360 added this to the To Print collection ago
Ad30bd4fc7cfee699ef731976d949c4d?default=blank&size=40IBuild added this to the Toys collection ago
10ebf073bcf68d8db571526d30f63bd7?default=blank&size=40Ch Benson added this to the n collection ago
Ce4d3c72386fe72c1e359b5c4447940c?default=blank&size=40Ryan Coleman added this to the To Print collection ago
Bec3cade5af6066adbcc4ce915218778?default=blank&size=40JChoochie added this to the Fidigets collection ago
8868941f6a32bdf2206f476aa360642b?default=blank&size=40eric777 added this to the Gadgets collection ago
1843b506d589247217d2d1e85add8336?default=blank&size=40Tony Buser added this to the Support Tests collection ago
6fc4d892ad4a6f1116733601fa0d0da7?default=blank&size=40Violinmelody added this to the Stufffffffff collection ago
Mini online avatar 2014Stefan Nicolin added this to the Things collection ago
Mini screen shot 2013 07 15 at 6.49.36 pmErik de Bruijn published this design ago