Hypercube Extruder Mount on 2020 Profiles

I remixed the hypercube extruder by Tech2C to mount it directly on the 2020 extrusions. I plan to full enclose my hypercube, thats why i have increased the height of the frame to get the bowden tube inside the enclosure. Thats why i made this. An advantage is, that the bowden tube doesn't need to be so long in comparison to mounting the extruder on the side.

I've made 3 versions of "ExtruderA":
- normal horizontal
- twisted 45° to decrease the bending of the bowden tube
- twisted 45° with a coupling for a input nylon tube (to bend it 45° to get the input straight and to go through the enclosure)

In every case you need "ExdruderB".

I also altered some things of the original Tech2C compact extruder:
- leave less space for the filament, makes it easier to insert new filament (also: not tested but should perform better with flexible filaments because the filament can not curl up easily)
- thickened the plate to 8mm (from 5mm if i recall correctly)
- added a lever to the gea