One of his more interesting builds is his series on building rocket engines out of PVC pipe written in conjunction with [Chuck Knight]. For the propellent grains, the PVC rocket didn’t use the ...

But not [truebassB], instead he built his own air pump from first principles (YouTube, embedded below) using PVC pipe. It’s a straightforward design in which the cylinder is a length of pipe ...

to PVC. Check with your local plumbing inspector. When inserting a pipe between two fixed ends, cut the new piece to leave an ...

The question of which materials should be used to replace those old pipes has become a point of contention. Advocates of ...