Our favorite chalk dispenser designers and builders have done some more tests. Here is the video:
In behind the scenes email it appears we will get a Version 3 unit for test with Boomerite by New Years Day. I plan to cut the charge in half, down to 100 grams, and see if that gives us sufficient lift for the chalk.
I also plan to modify the first unit by removing the containment box in the back and just put a specially constructed (chalk inside the target) 7” target a few inches behind the metal plate with the hole in it. I think this will work just as well and will only be a slightly more work in the field and much simpler to construct.