co2 airsoft receiver

thingiverse

https://youtu.be/9J_fzDFdi0g <h1>THIS IS NOT A TOY!</h1> <h2>YOU CAN BE SERIOUSLY INJURED BY THIS DESIGN, THE HOUSING THAT CONNECTS THIS DESIGN, THE CO2 POWERING THIS DESIGN, OR ANY OTHER PART THAT MAY FAIL AT HIGH PSI AND I DO NOT ASSUME ANY RESPONSIBILITY FOR WHAT YOU DO TO YOURSELF OR ANYONE ELSE WITH THIS DESIGN. ALWAYS WEAR EYE PROTECTION, ALWAYS MAKE SURE YOUR PETS ARE SAFE!</h2> <h3>Update 11-Dec-2019:</h3> Converted to threaded inlet. Added M11x0.75 to 1/4" NPT adapter. Will add various other adapters soon. Makes it a lot easier to attach an air source to the inlet. Also adding piston dimensions for machining. <h3>Update 05-09-2019:</h3> Just realized the spring adjuster was not in the files. Whoops. There now. <h3>Update 27-08-2019:</h3> Increased thickness of walls on all pipes and increased rear support by 3mm. Also added 1mm of thickness to gas inlet area, and increased support there. (had breech explode at 1100 psi) [receiver_v5] <h3>About this thing</h3> This is a co2 powered airsoft... cannon? This thing is intended to be attached to my auto tracking turret (opencv/python) and will fire airsoft in sentry or manual aiming mode (via phone). I will post the turret, code, and instructions when they are complete, but i wanted to get this out, too cool to keep locked up. :) Powered by a 20oz co2, co2 regulator, pi, relay circuit, 12v solenoid, 8mm aluminum bar, high pressure 4mm O.D. flexible air hose. Its strongly recommended that you machine the firing piston from aluminum or brass, you can attempt to print the piston, although it hasn't been very successful thus far. The firing piston should not be machined with the 8mm spring stop (pictured in v6_piston_example_2.stl), the piston rod should be threaded about 5mm from where it exits the receiver_cap in the full back position (toward air inlet) and an 8x5mm brass or steel weight should be tapped and threaded onto firing piston. This will allow the spring to properly compress against the spring adjuster. You will need a 15/16mm x 5mm od x 4mm compression spring. This is my own design and nothing was taken from any existing co2 or airsoft firing mechanisms. Capable of firing ~800 rounds per minute.