MultiBOOM 1/4-20 flat

Remix of the MultiBOOM 1/4-20 adapter by K2_Kevin. I found that his adaptor sheered off along the layer lines and the thread portion was not strong enough due to print orientation. This remix is inspired by the split bolts in multiboard and allows it to be printed laying down, which gives it much greater strenth as the layer lines now run in a completely different direction.Print laying down, fold it in half for use. Works fine out of normal PLA.