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 ...

Plan to paint PVC on a low-humidity day ... Step 2: Sand the pipe. Lightly scour the PVC pipe’s exterior by hand with 220-grit sandpaper. Skip the electric sander, as such a tool can wear ...