Spinning Nut and Bolt Fidget - Fast Rounded Thread, Nuts Spin Down on Their Own (OpenSCAD)
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A chunky bolt with a fast rounded thread and two nuts. Spin a nut and it runs down the bolt by itself. No supports.
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Updated at source:
Model information
- Source
- Printables
- Category
- Other Toys & Games
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
A desk fidget everyone picks up: a chunky hex bolt with a fast, rounded thread (one turn per 5 mm) and two nuts. Hold the bolt upright, spin a nut at the top and watch it whirl down on its own, or screw the two nuts against each other.
DETAILS
• Bolt 70 mm long, 15 mm thread, 26 mm hex head; 0.4 mm clearance in the nuts.
• No supports: the rounded thread never leans more than 45 degrees, and the bolt and nuts print upright side by side. Bambu Studio: 1 h 07, 11 g, no warnings.
CUSTOMIZE (OpenSCAD)
Bolt length and thread clearance (raise it if the nut is tight).
Designed with AI assistance (OpenSCAD). Rendered images; not printed yet.