you need two identical prints to use the battery box correctly. run wire throng holes to make contact with AA batteries and you can wire batteries in serial or parallel.

Design video: https://youtu.be/9JejhKshzDU
video: https://youtu.be/s0vQZPpjJ9E

YouTube channel: https://www.youtube.com/c/TabletopRobotics

2nd channel: https://www.youtube.com/channel/UCjgM_gPkspfAx1vjkW7irgQ

Anet

A8

No

No

0.2

20%

Any material does the trick.