Modified version of the Prusa i3's definition. While the i3 values work,
the print time estimations were horribly imprecise (often the print
takes 2x to 3x as long as Cura estimated). Therefore, I inspected the
problem, and found a Reddit thread [1] about it. Instead of hacking my
own installation, I just wrote a defition including the correct
acceleration/jerk values that work with my firmware (custom build of
Marlin based on https://github.com/JimBrown/MarlinTarantula/).
There's downsides however. I don't know how it performs with the stock
firmware (although I doubt there'd be many differences). Furthermore,
the `jerk_xy` is set to 4 in my definition, but that's only true for
the `x`value,the Marlin firmware has a `y` jerk value of 7. That leads
to minor differences in the printing time (e.g., just finished a print
which Cura estimated with 13h 30m, but it took 12h 50m).
Feedback from stock firmware users is therefore highly welcome. Also, if
someone could provide information about the jerk values and help
improving those inaccuracies, that'd be awesome.
[1] https://www.reddit.com/r/3Dprinting/comments/5wz0xs/
8f1d3e62d2