The moment of inertia of a part is usually controlled by the density of its build material and geometry.
With powder bed-based 3D printing processes, such as Multi-Jet Fusion (MJF) and Selective Laser
Sintering (SLS), solidified internal parts and embedded powder can be created inside a 3D printed
A method of tuning the moment of inertia using embedded powder and solid materials is proposed.
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INC, HP, "TUNING THE MOMENT OF INERTIA BY FLOWABLE POWDER AND ROTATABLE SOLIDS WITH 3D PRINTING", Technical Disclosure Commons, (March 27, 2020)