Gears and transmission
Traditional Kendama Ken
- Bounding box
- 45.5 × 45.5 × 184.0 mm
- Engine
- Precision B-rep
- Parameters
- 17
- Published
- August 28, 2026
Download
Free to download and use. See the terms.
The prompt
Create a 3D CAD model of a complete traditional Japanese kendama KEN (the wooden handle only, NOT the ball). The object must clearly look like a kendama: three wooden cups stacked vertically around a central wooden shaft, with a pointed spike at the top. The three cups are: large cup, small cup, and bottom/base cup. Use a single rotationally symmetrical wooden body with smooth rounded transitions. Dimensions in millimeters: Overall height: 155 mm Large cup diameter: 45.5 mm Large cup depth: 12 mm Small cup diameter: 39.5 mm Small cup depth: 11 mm Base cup diameter: 43 mm Base cup depth: 10 mm Cup wall thickness: 2 mm Central neck diameter: 21 mm Neck length: 32 mm Sarado/body section length: 76 mm Spike diameter: 10 mm Spike height: 33 mm Top bevel diameter: 24 mm Create a 17 mm diameter × 30 mm deep cylindrical hole in the bottom of the wooden handle. Create a 1 mm string hole centered on the appropriate axis. The design should be compact, thick and chunky, similar in proportions to a modern oversized kendama. Use smooth wooden curves rather than sharp edges. The result MUST visually resemble a real kendama wooden handle (ken), with three clearly recognizable cups and a pointed spike. Do not create a generic mechanical part, cylinder, pipe, bowl, or container. Generate only the wooden ken. No tama/ball.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall Height | 155 mm | 100 – 200 |
| Big Cup Diameter | 45.5 mm | 30 – 60 |
| Big Cup Depth | 12 mm | 5 – 20 |
| Small Cup Diameter | 39.5 mm | 25 – 55 |
| Small Cup Depth | 11 mm | 5 – 20 |
| Base Cup Diameter | 43 mm | 25 – 60 |
| Base Cup Depth | 10 mm | 5 – 20 |
| Wall Thickness | 2 mm | 1 – 5 |
| Neck Diameter | 21 mm | 10 – 30 |
| Neck Length | 32 mm | 10 – 60 |
| Sarado Length | 76 mm | 40 – 120 |
| Spike Diameter | 10 mm | 5 – 20 |
| Spike Height | 33 mm | 10 – 60 |
| Bevel Diameter | 24 mm | 10 – 40 |
| String Hole Diameter | 1 mm | 0.5 – 3 |
| Base Hole Diameter | 17 mm | 5 – 30 |
| Base Hole Depth | 30 mm | 5 – 50 |
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.
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