Minimalistic Head for Default Ultimaker (Skrewable / Fast Attach)

I like to change my um Head, without disassemble the whole thing. So i made a head for the default um.
This is inspired by nhfoley's minimum printhead.
I remade it very simple, to screw it to the bearings.

I printed it, and tested it. Works good so far.
Still need some long time print testing.

I added the new Files, and some pictures.