With a couple feet of snow on the ground the winter hobby season has arrived! The outside tasks that aren't done yet will just have to wait.
This might be too big a challenge to simulate, but I've gotten a request to build a
Shishi-odoshi, a Japanese deer chaser. Despite an 8 foot high deer fence the buggers still like to dine on Mrs. Moose's garden, which has changed their status from "Oh, they're so cute" to the (very un-Mrs. Moose like) encouragement of high velocity lead poisoning. Even the fawn she watched being born in our side field has fallen out of favor. We have the same problem in our orchard, anything that hits the ground disappears overnight. No windfall apple cider.
V1 will be 2 inch PVC pipe and a small pump which the HD and Amazonian overlords have gratefully provided. Total length, pivot point, and flow rate need to be determined. Very small balls might work, but their density and/or weight would need to be adjustable.
The original plan was to do it empirically, but what fun would that be?
Kirk