Here is my set-up for forging bamboo from stainless steel tubing (.o65 wall) with an AIR OPERATED 20 ton hydraulic ram (the red thing on the right). There's an air line connected to my compressor and a HAND CONTROL . So I heat a spot on the tubing (with the torch)all the way around the circumference of the tube ,then hit the hand control and the pressure forces the heat weakened joint to give way and deform OUTWARD making a nice bulging ring which looks remarkably like a joint on a stalk of bamboo. I've built this apparatus on a long steel beam which has a block on the end welded as a stop.This way I can forge an 8 foot long tube.
The next picture in my gallery is the display unit I made from these bamboo tubes. It was in a boutique for designer glasses that required transparent shelves so the products could be seen from any angle. This is again SITE SPECIFIC DESIGN.