My neighbor came to me, and wants me to build some greenhouse supports. Basically house shaped, out of galvanized chain link long pipe sections. Make some purlins and connectors to support the water system, and rigidize the whole outer frame. Put some simple gussets at all welded points.
He had thought of using PVC, and connectors, but I think the metal would be a lot stronger and reliable.
I have a band saw and a wirefeed. My idea is to figure out the angles on a scale drawing, and cut the pipe and weld together, laying them on a big flat driveway. Trouble is, making the second cut, and getting them to match. They would have to be cut with the pipe in the same orientation. I've done pipe with the bubble center punch, but that would be difficult on the smaller pipe.
My idea was to use a Irwin clamp, and weld a piece of angle on there that I could put a magnetic level on. Put it in the saw and make the bubble level. Then on the second cut, reverse, and have the bubble level again.
Is there a simpler way to do this? We may go to HF and get a pipe notcher to make clean joints on those that saddle.
TIA
Steve