Lightweight crank arm
A crank arm imported from a STEP file: a window traced from the arm's own edges is cut through it, and a gyroid lattice fills the window, blended into the arm with a 1 mm rounded joint.
Mass properties before and after show the saving: 219.7 g down to 172 g.
Open it in the editor →Runs in your browser; change anything — the demo resets on reload.