3D printable airsoft gun

thingiverse

Update: The temp account I used to model these things has expired so I'm leaving it up to the rest of you to continue this project. I'll be back someday with a new 3D modeling program to create more, but until then, see you later and thanks for all the attention! Update: The main barrel, splitting barrel, and lower half bolt should seal better now. I wanted an Airsoft gun similar to the sniper rifle used by Widowmaker in Overwatch or Kinessa in Paladins, but I don't have the best modeling skills when it comes to hard lines. So, I went with a basic, function-focused shape. I managed to get the telescoping feature to work without magnets (although they would probably help and really just take a foot off the barrel length). The full auto function is on hold for now, as it needs testing and tweaking like everything else, but feel free to use your own gearbox if you want to make one. I ended up using a compression spring with dimensions of: wire diameter 2.25mm / OD 20mm / ID 15.5mm / free length 4in. for this project (got mine from Sodemann's stainless steel D section). You'll also need brass tube with an OD of 0.375in and an ID of 0.245in for the metal-reinforced bolt upper half. If you need it, you'll also need a tube with an OD of 2in and an ID of 1.76in cut in half lengthwise (I got mine from OnlineMetals.com), as well as five OD 6mm compression springs for the extending barrel and trigger. Many of the parts have very tight fits, so be ready to sand to fit parts depending on your printer. To make an air-tight seal for the air chamber, what I did was apply a ring of expanding glue and let it grow however big it got, then I just sanded the foam down till it was a little bigger than the ID of the tube I was putting it in. If you print this, I recommend case-hardening some of the parts in some way as there are some places where it can get thin. Otherwise, remix and use parts as you see fit. "This probably won't be popular" *600 views later* "...oh".