Hey people,
thanks for your infos! TBH I don't want to invest a lot of work in my UMO, I want to build a new one.
What head I will use I won't decide now, the zero gravity extruder definitely looks very interesting.
The Duet3D also looks very promising, but id rather see this as an upgrade since it is indeed a little pricey.
I want to keep the Clone as "Original" als possible. My problem with the Ultimaker 2 ist the Sandwich build-structure. The different panels have different holes. I got my quote for Watercutting the printer which is quite reasonable. 200€.