the market competition is steel clamshell forms that are reusable. after the intial investment in a steel clamshell form, the return on the investment continues to increase. The Sonotube is disposable in that market so minimal cost is very important. most people just consider them to be "card...
which is less sleek and powerful than his Constitution Class Enterprise NCC-1701 but still forged into the deepest regions of space as Captain Archer made his historic explorations and First Contacts that led to the founding of the United Federation...
Second is the primary baffle was downright reflective. I 3d printed an insert (removable if if it doesn't work out) with rows of "knife edge" (it's 3d printed, not really) baffles that cover 80% of the focuser side. Didn't go all the way out to the front of the tube to make ...