MBeam - 215mm Beam - Horizontal Print w/o support

This is a 20mm beam for various use cases.
There are already some beam things available, but all are printed vertically which limits the beam length to 100mm on my reprap. Just printing the other models horizontally does not work well, because support material is needed which is very hard to remove.
This model allos you to print a beam horizontal, this means a max beam length of ~220mm (diagonal) on my reprap.
To archive "printing without support" , I had to split the beam in the middle a