Hi, GrblGru!GrblGru wrote:@Alexmoon
Your 3D model must have a probe (green probe), which you have to save under t++.stl.
I am sure that 99% of users of three-dimensional cnc machine, use a spindle with a milling cutter or engraver as a probe. For example, for accurate measurement of Z-origin. Especially PCB-developers, like me

In addition, modern probes have the form like as cutters and are installed in the spindle cartridge

So there is no need to display a separate probe on the machine model.
Could I ask to include the following cases to the backlog of my favorite program GrbleGru? (maybe far future)

1. Separate origin setting for horizontal plane and Z-axis (after measuring with probe)
2. Correction of a loaded G-code data with data from a height map, obtained using the scan function.
The fact is that milling of PCB is performed at a depth around 0.05mm. Because of this, the unevenness of the board is very critical for quality.
Some programs have such functions

Thanks!
Regards, Alex.