3D preview of Traditional Kendama Ken
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Interactive 3D model of Traditional Kendama Ken

Gears and transmission

Traditional Kendama Ken

4 views
Bounding box
45.5 × 45.5 × 184.0 mm
Engine
Precision B-rep
Parameters
17
Published
August 28, 2026

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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

NameValueRange
Overall Height155 mm100 – 200
Big Cup Diameter45.5 mm30 – 60
Big Cup Depth12 mm5 – 20
Small Cup Diameter39.5 mm25 – 55
Small Cup Depth11 mm5 – 20
Base Cup Diameter43 mm25 – 60
Base Cup Depth10 mm5 – 20
Wall Thickness2 mm1 – 5
Neck Diameter21 mm10 – 30
Neck Length32 mm10 – 60
Sarado Length76 mm40 – 120
Spike Diameter10 mm5 – 20
Spike Height33 mm10 – 60
Bevel Diameter24 mm10 – 40
String Hole Diameter1 mm0.5 – 3
Base Hole Diameter17 mm5 – 30
Base Hole Depth30 mm5 – 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.