In a side-to-side sweeping motion, spray-paint the pipe, starting from the top and working your way down to the bottom. Paint PVC in thin, consistent layers, overlapping the paint as you move down ...

He’s the original hacker rocketeer with thousands of words dedicated to the craft of making things move straight up really ... rocket engines out of PVC pipe written in conjunction with ...

[NightHawkInLight] a.k.a. [Ben] recently built an awesome high power air cannon out of PVC pipe. PVC air cannons ... released causing the piston to move backward. This releases all the air in ...