Button Spinner 32mm, 35 and 44mm - keychain
Print Profile(2)


Description
Spinning Button Keychain (100% 3D Printed)
This project consists of a fully 3D printed spinning keychain, designed to accommodate buttons of 32 mm, 35 mm, and 44 mm. The rotation mechanism works exclusively through designed fits and tolerances, without requiring bearings, screws, springs, magnets, or any metal parts.
The model was optimized for printing in PLA or PETG, using only a common FDM printer.
Features
- 100% 3D printed.
- No metal parts.
- Does not use bearings.
- Rotation system integrated into the model itself.
- Smooth movement achieved by carefully designed tolerances.
- Easy assembly right after printing.
- Simple button replacement.
- Robust structure for daily use.
- Compact and elegant design.
- Support-free printing.
- Low material consumption.
- Compatible with PLA and PETG printing.
Versions
The project has three independent models:
- 32 mm
- 35 mm
- 44 mm
Each version maintains the same external appearance, only changing the internal diameter to accommodate the respective button.
Spin System
The mechanism uses an axle and a circular fit printed into the part itself. Rotation occurs due to the sized clearances between the moving parts, providing a light and continuous spin without the need for additional components.
All parts are manually assembled after printing, without glue, screws, or tools.
Printing Recommendations
- Material: PLA or PETG
- Nozzle: 0.4 mm
- Layer height: 0.20 mm
- Line width: 0.42–0.45 mm
- 3 walls
- 20% infill
- No supports
- Normal cooling for PLA and moderate for PETG
Objective
To create a customizable, economical, and fully printable spinning keychain, allowing anyone to produce a functional spinner using only an FDM 3D printer. The project combines simplicity, durability, and practicality, offering an elegant solution to display and protect buttons of 32 mm, 35 mm, and 44 mm, with a reliable spinning mechanism built exclusively from printed plastic.
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.




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