cutting pipes, what software?

Problems and questions
1

I am planning to use my plasma CNC for cutting sheet metal and pipes (for bike frames).

I got the sheet metal side worked out, thanks to this software.
The pipe story seems to be a bit more difficult.

is there a special software supporting plasma cutting of pipes around someone has experience with?

My plasma table supports 4 axis.

2

SheetCam can support pipe cutting to a certain extent. It can use a modified post processor to wrap a 2D drawing around the pipe. What control are you using on your plasma cutter?