76mm trinocular microscope arm holder

I created this microscope trinocular holder, because I did not wanted to buy a proper base + arm for my microscope (I don't know why it is so expensive!). Then, using some conglomerate wood, a 30cm x 25mm metal tube (that I repurposed from an old standing fan) I created this very simple but effective microscope stand.

The microscope is a common AmScope compatible microscope. The diameter of the main ring is 76mm. The diameter for the tube is 25mm. There is a place for a M6 nut at the side, for adjusting the microscope to the pole.

It is included two pieces, called "macho" (male) and "hembra" (female), that are used for adjusting the pole to the conglomerate wood. The idea is that you create a small home (using a flat drill bit) in the wood, put inside the tube the female part, and put an M8 nut on the top of female part. Then put a M8 x 7-8cm screw from the bottom to the top, throught the wood and then just screw the tube against the wood, because the conical shape of the male p