Build video:
https://youtu.be/3TwG7ycrVSg

This is a walking diesel-punk robot toy. It uses an N20 gear motor with dual output shafts although only one side of the shaft is used. The walking mechanism is called a claw foot walker. I got the idea from the Robothut video on the on claw foot walkers. It use an extra link to give the appearance of a more complicated mechanism. The extra link is purely aesthetic. The toy will walk without it.

The parts with X2 in the file name require 2 copies. The frame_top file may need supports where touching build plate. The main_body has a large sacrificial bridge that has to be trimmed out with a hobby knife.

The parts needed to assemble this are:

3V 30Rpm N20 dual output gear motor
2AAA battery box
14 ea 3MM X 12MM button head screws

power switch:
https://usa.banggood.com/20pcs-SS12D00G3-2-Position-SPDT-1P2T-3-Pin-PCB-Panel-Mini-Vertical-Slide-Switch-p-1000847.html?cur_warehouse=CN&rmmds=search

https://www.amazon.com/Position-Breadboard-Electronic-Miniature-SlideSwitch/dp/B09R43HCY3/ref=psdc_306596011_t1_B07RTJDW27?th=1

Robothut video on claw foot walkers:
https://youtu.be/Pfw_jybhvHU

Good luck.