You got balls? My friend asked me when we went to Caribou hunting, there were dangerous snow trails by the beach, and somebody needed to pass through there. I said “Yeah, I got but small…” Anyway, I got small balls from China. Will use 6mm balls for joints for the regular armature and 8mm balls for the bigger armature. But they only sell joint plates for 6mm balls, that is why will make a joint plate for 8mm balls somehow. I cut a 2mm thick brass plate and drilled halls without jig. Every plate needs holes same place, but I can't make holes same place. Can't fit balls, joint not working. Then I plan a design jig for the joint. I draw on paper, it looks easy to make, but it is small and hard to make with metals. Drilling holes, cutting, and filing brass plates all evening. A few evenings later, finally, I finished a jig. Jig for ball joint I can make 6mm and 8mm, one ball two ball joints. 6mm, 8mm ball joint, and jig.
This is a log of the stop-motion animation we are making.