Shackle and shackle flat mini.
Description
A small shackle with 3d printed locking pin and a smaller shackle. Bigger shackle has ID of 25mm and fits around a quarter. Reposition body to lay flat and print without support, loaded properly can hold over 100lbs at 20%infill in PLA. Small flat shackle uses a #8x3/4" bolt (4mmx20mm if your country hasn't been to the moon or won the super bowl) print and put a bolt through one end, boil in water to soften and bend shackle to put bolt in other end. I like to put it back in the boil to normalize then cool. Should keep shape thereafter depending on material used. Works great in nylon does not work in Polycarbonate. Let me know what materials work for you.
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