Precision default based on job unit

[voneiden]

Possibly 3 for imperial (0.001" / 0.0254 mm) and 2 for metric (0.01 mm / 0.0003").

[giannissc]

If I am not mistaken it is 3 dp for metric (mm) and 4dp for imperial (inch)

[voneiden]

Is this a reference to LinuxCNC docs?

Well, maybe just go with 3 and 4 for now. Later this should be tied to post-processor as well. And also have separate various precision values for fine control (interpolation, arc tolerance, clean).

grbl may already struggle to keep up with line segment lengths of 0.1 mm (depending on feedrate and acceleration), so universal default of 0.001 mm is not a good idea in the long term.

[giannissc]

I don't remember where I saw it but I have all my files downloaded so I can search for it again. But I do agree that the post processor is probably the best place to include it!