Pneumatic logic gates

thingiverse

Make pneumatic AND gates and OR gates along with [thing:3142024](https://www.thingiverse.com/thing:3142024). This lets you attach various valves and sockets to a base plate, which interact in different ways. Each base plate has four ports (two on top, two on bottom), allowing up to four sockets to be attached. Each socket can have a non-return valve to block flow in one direction, letting you create OR gates directly. By placing a special pin inside the base plate, two non-return valves become mutually exclusive, creating a two-port AND gate. Unused ports can be permanently shut off with blinders. A bridge rectifier can be made using four base plates, four non-return valves, four sockets and four blinders. This is useful for making an air compressor, among other things. Update: Modified DualBase to 23 mm spacing on November 3rd, 2018, to avoid problems with small brims around valves etc.