Patch catcher/trap

A cap that threads on to the muzzle and a soda bottle, to trap your cleaning patches and solvents in the bottle.

Cap threads are by https://www.printables.com/@steffanders and found at https://www.printables.com/model/262018-pet-bottle-pco28-1810-thread-standard-models.

Print with no support, but use build plate adheasion, if needed. Chamfer and deburr the fine threads. The threads have a 0.25 mm slop added to make it easier to print. The 1/2 inch only have 0.1 mm.