Jigs and fixtures
Marble-Run Spiral Ring
- Bounding box
- 24.7 × 25.0 × 24.7 mm
- Engine
- Precision B-rep
- Parameters
- 10
- Published
- October 14, 2026
Download
Free to download and use. See the terms.
The prompt
Create a finger ring whose band is shaped like a curved marble-run track. The track should wrap around the finger, with a U-shaped cross-section: a shallow channel between two rounded raised edges. At the top of the ring, the track curves into a small open spiral, with one fixed spherical marble nestled inside the channel. The track itself forms the ring, rather than a separate marble-run tower attached to a conventional band. Inspired by the chunky, playful shapes of 1990s plastic marble-run toys. Use one continuous connected form, with smooth rounded edges. No towers, support columns, extra tubes, text or decorative details. Inner diameter: 17 mm
Parameters
| Name | Value | Range |
|---|---|---|
| Inner Diameter | 17 mm | 14 – 22 |
| Outer Diameter | 24 mm | 20 – 32 |
| Band Width | 6 mm | 3 – 10 |
| Channel Depth | 2 mm | 0.5 – 4 |
| Channel Width | 4 mm | 1 – 8 |
| Spiral Outer Diameter | 12 mm | 6 – 20 |
| Spiral Inner Diameter | 7 mm | 3 – 10 |
| Spiral Overlap with Ring | 2 mm | 0.5 – 6 |
| Spiral Arc Angle | 280 deg | 90 – 360 |
| Marble Diameter | 5 mm | 2 – 8 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
More models
Browse the full gallery →M5 Hex Bolt and Nut Assembly
Create a precise, editable, parametric mechanical CAD assembly based on the provided engineering drawing reference. UNIT SYSTEM: Use millimeters (mm). Model all dimensions exactl
Six-Canister Film Tray
Create a tray for six 35 mm film canisters with transport handles
Washbasin Stand
Create a welded stainless-steel washbasin stand made from rectangular hollow sections 40 × 60 × 3 mm. The stand consists of two parallel vertical rectangular side frames facing ea
Skew Planar Antenna Bending Jig
Create a jig for the skew planar antenna 4 lobs banding at 43 angle.
Go-Kart Steering Rack Assembly
simple ultra compact lightwweight cheap steering rack for a go kart vehicue
Tikka T3/T3x Bore Guide
can you create a design from this photo Create an editable 3D CAD model of the orange Tikka T3/T3x 6.5 Creedmoor rifle bore guide Overall length: 210 mm Main cylindrical body outs