Another success! Today, I made sure that R2 won’t lose his leg during his first test drive: I finished the internal pass-through screw system. On one side, the screw head sits inside a deeper hole so it stays hidden under the panel. On the other side, I cut a perfect 6-sided hexagon shape. A real metal nut will sit inside this pocket, so when I tighten the screw, it will hold the leg perfectly, without breaking the plastic (at least, I hope 😜). I’ve started the ankle, making it 9,6 mm wide because the slot is 9.89 mm. This leaves a tiny gap both sides. I also imported the blueprint image to Fusion, scaled to the right size. Finally the project is coming together!