I'm trying to create a segmented/lobster back bend out of some straight sections of 200mm diameter acrylic pipe, like so:
As you can see the bend is made from two types of parts: Part 1, which is a section of straight pipe with one end cut at an angle, and Part 2, where both ends are cut at an angle. Some drawings of the two parts are shown below:
Part 1 drawing:
Part 2 drawing:
I'm trying to figure out how I can go about making these pipe sections. The problem boils down to two questions:
- What's the best tool to cut reasonably precise angles (say, nearest 0.5-1 degree) for such a large pipe diameter (200mm)?
- Cutting Part 2 might be more tricky because I need to make sure that the pipe doesn't rotate around its longitudinal axis when I come to cut the second angle. Otherwise, when I put the bend sections together, the pipe will start to form a sort of spiral. How can I go about cutting those sections?