AnHardt

At the current implementations the TX pins are not used - so currently not a problem. But in the future someone could try to use them - and will wonder...

Don't know how the the search for values is done in teacup but maybe it's worth to minimise the amount of values. One could search the turning point and search...

> 1.2.2 Axis modelisation Effective motion along each axis will be assumed to be analogous to that of a load attached using a spring to a point following the ideal...

> often called ”jerk”, but not related to the thirdorder derivative of position For that i prefer the term "jerk-speed" when i talk about Marlins (grbl s) parameter. (Not because...

> At t = 0, there is by definition no deviation from the path yet; That's questionable. If the previous line segment ended with a deceleration phase we already have...

Indeed we discussed this approach (or an earlier iteration) already in #8071. My conclusion was: Nice to have. But measuring the printer for determining the parameters for the algorithm is/was...

If you are interested in how much and why z-home could shift, watch [Advanced heated bed tests](https://www.youtube.com/watch?v=2sW25xt5E6U) Averaging some probes does not help at all.

> ... or if you're just using an end stop switch mounted on the frame? That's a good solution to have the beds mounting points always at the same height....

If occasionally triggering to early/high - it could be a false positive caused by electrical noise. Sometimes inducted by a surprising source like a near by desk lamp being on...

I'm missing a simple way to set up a SPI-slave.