/diy/ - Do It Yourself

How low can you go?
I'm talking about hotend weights of course, i'm thinking about doing the good ol' Ultimaker build but going a bit further, what i mean is stuff like dropping the dual hotend and going with only one, not using ordinary linear bushings but polymer ones, and replacing those steel shafts that move around, with carbon fiber ones, that kinda stuff, would it be a feasible idea? Something obviously wrong with it? With a hotend that light the speeds possible ought to be absurdly high making printing even with a 0.2mm nozzle atleast somewhat tolerable.

https://openbuilds.com/builds/diy-ultimaker.5585/