3D Printed Toy (Gomboc) Mono-monostatic Roly-poly Home Office Decoration Desktop

Description

This 3D printed model is called Gomboc, which meets the following conditions.
1. The solid model is homogeneous.
2. The solid model is convex.
3. The solid model only contains one stable equilibrium position and one unstable equilibrium position.
4. The solid model at any position will back to its stable equilibrium position automatically on a leveled desktop.
Like roly poly toy, Gomboc is a self righting toy and always returns to an upright position. The main difference between them is that Gomboc is homogeneous but roly poly has uneven weight.  Therefore, it is difficult to design Gomboc due to this requirement.
This beautiful solid model is a perfect gift and can be used as home/office decoration, or 3D geometry teaching/learning model.
Material: Plastic (PLA)
Size: 2in x 1.6in x 1.8in (50.8mm x 40.8mm x 46.3mm)
Weight: 18g
Note: Each 3D printed part is unique and cannot be 100%smooth.  I determine if a part is acceptable based on its overall quality, not local details.
Shipped with USPS First Class Package.