CeXY H-Bot MK2

*UPDATE*

- I've tested my design of a bowden extruder and it works great
https://www.thingiverse.com/thing:3606182

- Added parts to use 5mm threaded rod for Z axis

- Fan Mount for a Volcano hotend was added

- Finally I got rid of the terrible moire effect (salmon skin) in the prints; I tested the mechanics, drivers, electronics, firmware, slicer-settings, but the motors caused the problem, they ran to rough - to high inductance?? --> pic "no more salmon skin"

- After printing quite fast with the 0.4mm nozzle, I tested a 0.2mm nozzle and printed the treefrog in 0.1mm layer hight @ 25% scale --> pics
https://www.thingiverse.com/thing:18479

- the 1:3 gear ratio of the Drakon Extruder was a little bit to low for printing fast respectively accurate; at the moment I'm testing two ~ 1:5 geared bowden extruders (Wade-style) and they both work better;
https://www.thingiverse.com/thing:566791
https://www.thingiverse.com/thing:2639171

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