Hi Folks,
I like to make cardboard models before I cut and weld. I just think it makes everything easier. The little triangular piece of wood in the picture has a hole drilled through it and a pencil in the hole. It allows me to make a projected line on the cardboard. When i made the curved hopper tube I projected the curvature of the bent pipe I scrapped from something else. Then I wanted to make two 45° turns in the pipe instead of one 90°. When you make a 90° turn you cut the pipe at 45°, and the two cut pieces add up to 90°. Simple. So if you want to make a 45° turn you just set your mitre saw at 22.5° and cut. Ask me any questions.
Rindert
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