Layer shift in Core One
I just had a thought: Layer shifts in Core One are a fairly common problem, usually caused when the nozzle gets mechanically stuck (filament blobs, prints lifting up, overextrusion).
Is the core one too rigid for its own good?
The thought came watching my Voron where the (toolchanger) head can slide upwards on three pins and is held down by magnets.
For testing, I loaded green "dripmaster ultraBlob PETG" (actual brand shall remain unnamed but with a 0.6 mm nozzle you almost get a running stream of molten plastic without extruder at a cozy 250°C. It's that bad).
Of course, it results in Blob-fest all over the wipe tower, as expected. But now, to my surprise, the printer is just plodding through, like nothing happened - obviously, because the head can evade in upwards direction.
Is this a possible design improvement? "OptoTap" is fairly common on the single-head version, suspending the head on a tiny linear rail, having the same effect. Sells for below $10 including the linear rail and electronics, must be a high-volume product ... While intended primarily for sensing (instead of Prusa's load cell) I wonder now whether it has other benefits that make it so popular.