GOG robot. Mystery action bump and go. 3d printed battery operation.

Based on the robot from the movie GOG.
Vintage bump and go drive design.
Build videos.
Part 1 https://youtu.be/ZjVwDjANMI8?si=RqAFmlpdpGc5lj6r
Part 2 https://youtu.be/QL9hgSRFpbs?si=0ByduixoZq60xY2L
Part 3 https://youtu.be/zzDhApVsCeY?si=DiEbz5M3wfquK1wc
Lets talk about GOG robot video. https://youtu.be/vCAvUxAAUig?si=2-CtdBjOxbmp6AXu

I used a TT gearmotor with a 1:90 reduction. The most common 1:48 gearbox might work, I did not test it.
I used a 3 AA battery holder and a slide switch with 19mm mounting hole spacing.