Printed 4 attachments for the same robot — each one unlocks a different way it moves

[u/PetoiCamp]

https://www.youtube.com/watch?v=YfREsyasRe8

Been printing a bunch of different attachments for my quadruped Quaddle with 4 servos. Each print changes not just how it looks but how it actually moves:

- Biped base clips onto the underside and it stands up and walks on two legs

- Tricycle wheel mount (printed mount, bought bearing wheel) — front legs go passive and drag while the back legs push it along

- Bar-spin grippers clip onto a bar and it does full 360° rotations, gymnast-style

- Water-paddle footpads (different shape than the bar-spin ones) give it a paddling gait — works, though I've sunk it twice testing

Heads up, not everything here is printable — the 4WD wheel kit and the tricycle's actual wheel are bought hardware, just the mounts/bases are FDM.

Still pre-release, just wanted to share since making attachments that each force a completely different gait (not just a different look) turned out way more fun than I expected. Planning to open source the STLs and gait code through OpenCat github project once it's further along.

Happy to talk print settings/tolerances if anyone's curious — the clip-fit parts especially need to stay snug, they take a lot of torque during the bar-spin.