The Loop-de-loop! π’
18 Jan 2026 | by Marta
Looking for a smooth ride? This is a Simple Circular Slider designed for 0.5" (12.7 mm) steel bearings. ποΈπ¨
π οΈ Project Details
- Ball Size: 12.7 mm (0.5 inch) marbles.
- STL file

The main feature of this design is its low slope, which provides a satisfyingly slow ball descent. Itβs perfect for testing how gravity and centrifugal force interact with your track dimensions before building a larger project! π§ͺβ¨
Ideas:
- Design: Circular path with a gentle, low-angle incline for a "slow-motion" roll. π
- Purpose: Experimental track to test tolerances and rolling speed on curves.