I built a thing out of PVC pipe for my garden. It involved solving a few systems of linear equations to optimize the most efficient use of materials. As one does.
I learned: Bending Schedule-40 into an 8ft circle involves a lot of force. I had fashioned a network of very tightly cinched ropes to maintain the angles while the cement set, which was great, but let's just say I underestimated that duration the first time. There were a few minor rope burns.
(The other option would have been to build a jig for the curves and use a heat gun to soften the PVC. Might have been simpler? Not sure.)
