The tube's inherent nature means that a laser generator is not required. While flat sheet laser cutting machines are now available with laser generators of up to 12 kW, tube-cutting machines typically require a maximum power of 5 kW. Tubes require you to be aware of the opposite side when cutting. A more powerful laser would cut through the tube's other side. (Officially, the tube laser can be used to process a beam or channel.
It is important to remember that traditional ways of checking for twists and bows can take up five or seven seconds, before cutting can begin. Touch sensing can only be used for precision. It can seem that this is all a lot, but it's not the same as working with sheetmetal.