Lewihe Play hotend fan support (AKA happy boy)

This closes my Lewihe Play 3D project. I have completed all the parts I wanted, but I noticed that changing the hotend fan support could be a nightmare if you don't want to disassemble the coreXY system. I had to change and make some proof and I always dropped that damned M4 nuts away... if you understand me... So I thought about a design that could have the nuts embedded so I could assemble the thing without worrying about the nuts. This definitely did its work. Thanks again Lewihe guys for i