I learned how to design and build mechanical keyboards. My buddy and I are still at it and are working on our second keyboard that we hope to release publicly.
I’m still using our first prototype as my daily driver for the past 2 years.
Learned a lot about PCB manufacturing and embedded systems design.
It’s because your nozzle is ever so slightly too low when you’re printing. I’d adjust your Z offset by one click upwards.
Reprint the cube, and see if that resolved it. If not adjust upwards by another click.
If after a handful of times you can’t get a decent ironing pass, I’d take a look at your extrusion multiplier. Drop it down by 0.01 and recalibrate and retry doing the above ironing calibration sequence again.
IANAL; However Usually the contracts have a severability clause, meaning even if some parts of that contract are null and void the rest of it stands minus the parts that are illegal. Does that mean those clauses are also null and void depending on locality? Again IANAL, but I believe it’s pretty settled contract law at least in the US.