Ultrasonic Alignment tool for Bed Leveling+zeroing of stage + Filament monitor

[Mjolinor]

and in english ?

Make a layer tapered.

[ShadowX]

Make a layer tapered.

That what a slicer is for. With Simplify 3D, you can define set layer thickness at different heights. I know you are talking about changes within a layer, but I don't see how that can be accomplished without the slicer telling the controller where to change the height at a specific point.

I would not trust an instrument like this to establish your z height and use it as a feedback loop for now. If you calibrated your steps per mm accurately, there is no reason to do what you are saying unless you are skipping steps. A servo motor control would be a better option. I am not sure if most firmware even have the ability to use a closed feedback to adjust heights. I mainly use reprap and I don't believe it has the ability, but I may be wrong.