Log 1

Meet Momo.

Momo is a small four legged robot spider. 8 servos, two per leg, one to swing, the leg and one to lift it. It’s got a screen for a face that changes
expression, a mic, and a speaker. The idea is you talk to it and it talks back, and it actually knows it’s a spider. Ask it to walk forward and it walks forward. Say something dumb and it makes a confused face.

I spent a few days just researching before touching anything. Went back and forth on the board a lot, ESP32 vs Pi, and how to actually power 8 servos
without browning everything out. Worked out the parts list, orderedeverything, and then gaps where i was just waiting onshipping.

So I figured I’d CAD a rough version. Just to get a sense of proportions andwhere things would sit.

That was the plan anyway. I got way too into it and ended up modelling the whole actual thing. Not a mockup but the real one. Spent days on it though. Kept redoing where the legs mount and where the second joint sits because the first few versions either had no range of motion or put the feet way too far out from the body.

Parts showed up eventually and I tested the fit with some servos I already had ( the press fit was so good that it stripped the servo wire😭). Checked tolerances, made sure the servo pockets weren’t too tight, horns cleared properly, that kind of thing.

Came out way better than I expected honestly. This was mostly a CAD week and I’m glad it was.

Next up is wiring and getting the first servo to move set up the pi and rest of the componenets.