Edgun Leshiy Baffle

thingiverse

This is a family of baffles for the Edgun Leshiy 2. They represent my experiments as I try to find a "good-enough" baffle design. The initial baffle is the one whose filename includes "2b". It represents a somewhat intermediate design in that it has both a traditional (Maxim-style) design as well as little helical spirals. It requires two .stl files to print. "2b" is the baffle, and "A1" are the keys you insert into the baffle, once you have secured it to the front face. The keys are required (out) to fasten the baffle to the front plate. Once fastened, you insert the keys, sand flush, then add the o-rings (48mm OD 45mm ID, 1.5mm thickness). You'll want to print it so that without the o-rings it slides into the shroud body easily, but with the o-rings it will be a very snug fit. You will want to use some kind of o-ring lube, as you could break it when trying to insert, if unlubricated. This baffle is designed for .22 pellets, with the stock long barrel shroud and 350mm barrel. This should work just as well with the 250mm barrel provided you have the short barrel shroud. I do not have access to it, so I have not tested myself. Provided the tube for the short barrel shroud is 145mm long, this should work. For the long, it is 245mm long. There are several variants of the "2b" baffle that explores various extremes. The "3b" baffle uses a spiral structure. I made this baffle relatively simple with no way to insert the retaining bolts. The baffle is held in place only through the friction with the shroud, and the end of the barrel. It has similar acoustic characteristics to the "2b" baffle. Will likely try a few variations on this, with different helix shapes (twist rates, curvature, etc). Baffles "3d" and "3e" are variations on "3b". They have slightly beefier helix reinforcement, and "3e" has one additional helical spiral. "3f" has a slightly more rapidly twisting helix. "3g" has 5 helices, and a slower-twisting spiral like 3b and 3e. Baffle "2.1" is a variant on 2b, but without the spiral and having several more baffle partitions. "2.1b" has one extra baffle, i.e. they are packed a little tighter. I am still just trying out various different baffle designs to see what works best for my purposes. I am measuring noise with an app on my cellphone, so likely I'm not getting the best results. Once I've settled on a design or two I'll likely start printing out in other calibres. At present the "3f" is my favorite. Keep in mind my Leshiy is set around 110bar. Presumably the optimal baffle will depend a little on your regulator pressure and the specific projectile, although I do not know if this will have much affect on audible noise levels. Pictures are in order 2b, A1, 3b, 3d, 3e, 3f, 3g, 3h, 3i, 2.1, 2.1b