Having some brilliant designers and having perused lathes, locomotives and dividing heads I have something different.
I have three hedgehogs who visit my little feeding station nearly every night, (I have a trail camera) regrettably we have a bully hedgehog, a shy hedgehog and a greedy hedgehog, this means if either the bully or the greedy one arrive first there is nothing left for the shy one. Can anybody come up with a system of allowing food, they are small pellets about 6mm I'm diameter and quite dry, to drop when a hedgehog visits the box so that all may feed.
I would willingly build another box but can not think of a hopper design triggered by a hedgehog. They are quite heavy and would set off a tread plate but easy on the electrics please. I am not very well up on them.
I await with baited breath.
Howard.