Update for Ping Pong Ball Launcher

I have since updated the design for the plunger for the ping pong ball launcher. The previous design was printed in 2 halves secured by a 'C' shaped clip on one end and a 3d printed bolt on the other. This new version is printed as one whole with a hole for a 27mm metal machine screw (I use the #7671 item from Hillman) that keeps the compression spring in place. Because of the added stress on some pieces, I used a 20% cubic infill for most pieces; the plunger could use even more infill density selectively around the hole as its where most of the resistance is. The added length required the "sandwich" design to be lengthened (you can think of the final product as 2 halves: the main body consists of the launcher, arms, legs, & handle where as the tail consists of the sandwich design that holds the plunger socket & plunger). The old plunger socket design should work as well but I included one that has the shape of the new plunger's cross section. I also have added TPU rings to the front and back of the recoil spring to better cushion the impact and make it quieter. I included the files for them as well.