Spin Box 3D printable model by Neil Sawhney

Spin Box

Source: MyMiniFactory by Neil Sawhney

The Spin Box is a free printable 3D model from MyMiniFactory by Neil Sawhney. This is a very simple design that implements a cool idea. You can download the STL file from the original listing below and print it at home.

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30 saves Source: MyMiniFactory Updated 2026-04-17

Tags: box, container, physics, puzzle, safe, secret, trick, spin, lit, opening

About this model

This is a very simple design that implements a cool idea. Despite looking impossible to open from the outside it is possible. I didn't make this up, but the only way to open it is by spinning it. Pins on the inside are forced outward by centrifugal force and the box opens only when spinned. Heres a video of it working 

Frequently asked questions

Is this 3D model free to download?
Yes. Spin Box is free to download from MyMiniFactory. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by MyMiniFactory, not by Thinger. We link you directly to the original listing by Neil Sawhney.
Who made this model?
Designed by Neil Sawhney, published on MyMiniFactory. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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