compressed air engine / pneumatic engine

thingiverse

A Simple Yet Effective Compressed Air Engine. It Works Without a Pump, Using Only Your Lung's Power. Building this engine was my way of learning and developing my design skills, as well as improving my knowledge about 3D printing tolerances. To Build This Engine, You Will Need the Following Parts: - Four M3x16mm Screws with Nuts for the Casing - Two M3x12mm Screws with Nuts for the Cylinder and Crankshaft - One M2.5x14mm Screw to Adjust the Valve's Opening Time - Cut the Head Off and Reduce Its Top Size for Better Air Flow - One 6mm BB from an Airsoft Gun - An O Ring with a Minimum Inner Diameter of 5mm and Maximum Outer Diameter of 7mm - A Ball Bearing with an 8mm Inner Diameter and 22mm Outer Diameter - Sealing Paste to Prevent Leaks in the Casing and Deckel - Glue for Holding the Casing's Parts Together Before Assembling, Apply a Small Amount of Sealing Paste to Secure the O Ring in Place. Without This Step, It May Slip Out of Position. The Valve I Used Is a Ball Valve. Insert the O Ring into the Upper Hole of the Deckel and Mount the Airsoft BB on Top. Check for Leaks to Ensure Everything Is Working Properly. I Hope You Have Fun Building and Using This Engine! I Built Mine Using Parts I Already Had at Home, So Maybe You Can Find What You Need in Your Own Home Too. Feel Free to Ask Me Any Questions If You Need Help.