Moment of Inertia demo wheel

thingiverse

These wheels enable you to clearly demonstrate the concept of the moment of inertia in a hands-on manner. The wheels feature three concentric rings of holes positioned at 25, 37.5, and 50mm from the center. By inserting M8x30mm bolts through these holes and securing them with nuts on the opposite side, you can selectively add mass to the wheels, thereby modifying their moment of inertia. A straightforward demonstration involves printing two wheels and then adding eight bolts to the inner ring of one wheel, while adding eight bolts to the outer ring of the other wheel. Next, roll both wheels down an inclined plane created using a plank and some books for instance.