well,

Lets say I make a flat 2d drawing with a height of 314 mm with a design or shape that I want to warp around a tube.

When I tell Mach that the tube has a diameter of 100 mm / a circumference of 314 mm will mach understand that 314 mm is 360 degrees? so that on one occasion 360 degrees is 314 mm and the next occasion with a smaller tube it could be 200 mm.

Then I could just load 2d drawings with a height that corresponds with the circumference?

I'm using lazycam at the moment.