I built this photopopper following Ray’s FLED Photopopper Tutorial, but I mounted my gang of transistors upside-down so that it looks nicer from the bottom. The results are quite pleasing, and this is quite an active little guy. He’s the first to start popping when the sun hits my robot collection. The only problem is that he’s liable to fall onto his arse; either the motors need to be placed further back, or there needs to be more weight towards the front. Oh, and I’ll clean up those motor leads one of these days.