This Rube-Goldberg machine includes seven steps that separately show seven different principles of physics during a time span of 42 seconds: conservation of energy, conservation of momentum, inelastic collision, elastic collision, rotation, torque, and 2D projectile motion. Rotation part is the most difficult problem I faced, since I planned to use a pulley to fulfill the requirement but I couldn’t build a pulley in Blender. Then I was inspired by a video that teaches people how to make a sling in Blender. Therefore, I changed my plan to make a rotational lever just like a part of a sling to complete the rotation step. I ensured that my machine fulfill all the requirement as it can ran smoothly through all seven required steps with a time span of at least 14 seconds and can also crack an egg successfully in the final step. Each of the seven steps are analyzed mechanically in this article.

Hanlin Yin. Research on the Rube Goldberg Machine Based on the Mechanical Analysis. International Journal of New Developments in Engineering and Society (2020) Vol.4, Issue 4: 150-167. https://doi.org/10.25236/IJNDES.040415.

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