Ball Screw Fidget V2

Description:

A compact 3D printed ball screw fidget toy with a satisfying twist-and-roll motion.

This model is designed as a simple mechanical desk toy: twist the outer sleeve and the internal ball follows the spiral track, creating a smooth rolling movement you can see through the small side window. It is a fun little print for anyone who likes mechanical fidgets, kinetic toys, or satisfying printed mechanisms.

No bearings, screws, magnets, or electronics are required — just 3D printed parts.

Features

• Twist-to-roll mechanical fidget action
• Visible moving ball through the side window
• Fully 3D printed
• No extra hardware required
• Compact desk-friendly size
• Simple assembly
• Great for mechanical toy lovers
• Fun stress-relief fidget for your desk or pocket

Printing Notes
Print the parts separately and make sure the track and moving ball are clean before assembly. Remove any stringing or rough edges so the ball can roll freely. The balls have a risk of coming off the plate, if you have issues with that try printing them object by object on multiple plates. I printed all the parts in Bambu lab PETG HF.

For the best visual effect, print the body in white or another light color and use a bright contrasting color for the ball.

Recommended Colors
White body with a red, orange, blue, or neon ball for high contrast.