You can also follow along with Neil at New MPCNC build: Primo + Manta MP8 + Klipper in BC, Canada
He, along with some others, are looking at Klipper also.
I started with Klipper, but found that as I did a ‘pause’ to change tool bits, when I ‘resumed’, Klipper would move the head back to the original spot but by moving X, Y, and Z all at the same time which would have moved the bit into the work piece. I couldn’t figure out (at least not yet) how to just have it move X and Y first, then move Z down. I didn’t really want to modify the underlying Klipper code in order to maintain it when there are Klipper updates (that and I know enough about coding to really get myself into trouble 
).
From what I’ve read it seems Klipper is more focused on the 3D printing world and not CNC. Some have tried to get it to work for the CNC world, but it didn’t seem to me that they had the time to maintain when Klipper was updated.
I therefore am currently using Marlin and got a workflow that I’m comfortable with (SVG-> EstlCam->CNCjs->BTT Octopus v1.1 with Marlin on it). I’m very willing to go back to Klipper and help test other’s ideas/macros.
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