This is a remix of the smart designed walking robot from "HandicraftRecordBook":
https://www.thingiverse.com/thing:4746108
I liked the clever and minimalistic style and the short printing time.

What I ONLY did is making ALL parts printable, so no need to search for the wooden parts of the original design.

Make sure that all joints move smooth and free, but with minimal freeplay.

No

0.2

25%

Easy to print! You can print all parts in one set (use "Complete_parts_set.stl"), or print each part separate if you need a spare, they are all downloadable separate.
No supports, no raft needed.

Assemble the parts like the original author showed in his video instructions: https://www.thingiverse.com/thing:4746108
And it is even easier, because leg and foot are now 1 part only, and no woodstick needed as axle for the upper two cranks.

For the single AA-battery I used the box from here: https://www.thingiverse.com/thing:456900/files
works like a charm.

You need some self tapping 2mm screws; eg like these: https://www.amazon.com/-/de/dp/B08FQWXCKG/

And of course a "yellow gear motor", aka "tt gear motor", just do a google search:
https://www.google.com/search?q=yellow+gearmotor