Oloid – 3D Printable Geometric Solid

The oloid is a fascinating geometric solid discovered by Paul Schatz in 1929.
Its unique property is that it rolls while touching every point on its surface, even though it is not a sphere.
This 3D model is designed for easy printing and works great as an educational object, desk toy, or stress‑relief item.

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✨ Features

• Accurate geometry based on the classical oloid construction
• Smooth continuous surface, ideal for math demonstrations
• No supports required
• Single-piece model, ready to print

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🖨️ Recommended Print Settings

• Technology: FDM / FFF
• Layer height: 0.16–0.20 mm
• Perimeters: 2–3
• Infill: 10–20% (gyroid or cubic recommended)
• Supports: Not required
• Material: PLA, PETG, or ABS
• Orientation: Place it on one of the two “flat sides” for maximum stability

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📐 Dimensions

The model can be freely scaled.
A length of 60–100 mm provides a smooth and pleasant rolling motion.

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🎓 Suggested Uses

• Geometry and motion demonstrations
• Desk toy or fidget object
• Minimal decorative piece
• STEM educational activities

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📎 Notes

For an even smoother surface, you can enable vase mode with thicker walls,
or slightly increase the printing temperature to improve layer bonding.

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🔖 Recommended Tags

oloid, paul schatz, geometric solid, math toy, rolling shape, educational model, 3dprint, stem, desk toy