Laser welder gun holder with place for a neodymium magnet

There is my version of that holder. I have added a hole 37 mm in diameter on the bottom side in order to put there a round neodymium magnet and a smaller hole on a top to put a nut on.
I also have enlarged a place for the gun head to fit there a water cooled torch and I increased the distance between a cable holders to fit a air cooled torch.
Moreover I have merged all three parts so on bigger 3D printeres it is possible to print the whole part at once.
I have also removed some unneeded holes for screws holding all parts together because those weren't needed any more.