It’s no self-healing hydrogel, but this massive 3D-printed excavator actually works, and can be remote-controlled. Inventor Ivan Miranda created this big build with the help of his own LEGO Technic-style, 3D-printed bricks that can be stacked together like you would the toy sets.
All of these giant bricks were then bolted together, including the base and arm, before custom linear actuators, made from servos as well as threaded rod, were added to control the arm. Driving this excavator required tracks and were quite a challenge to piece together using the bricks. Unfortunately, these bricks just aren’t rigid enough to handle any heavy tasks, so it’s more or less a novelty project for now. Ivan hasn’t released the 3D printing plans for his blocks, so you’ll have to figure them out yourself before attempting a similar build.
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