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Love FreeCAD, apart from one little annoying issue.
Used the CAM for making the brackets and nubbins for the Franken Myford CNC conversion. It's my Goto for anything I need to 3D print, even used to help my son with some prototyping ideas when he was doing the additive manufacturing module at Uni.

AliExpress has carrier boards for the little step stick drivers, less than a dollar a pop. You would just need to make some cables with female DuPont connectors at one end and bootlace ferrules at the other, far better than bare wires. That's the setup I use for testing things rather than messing with the mill in the garage.

See the light blue star on your screenshot?
That is active offsets.
In Axis GUI you can choose to show offsets, i do not use Probe Basic so i do not know how to show them.

Standard would be the normal TB6600 and above up to huge servo drives, self contained in a box for each axis.
The 3D printer ones or step sticks are ... well for 3D printers, useless without their respective boards, very prone to interference, and some will just fail by touching them at certain conditions. Yes, TMC are pretty good, but using stealth chop or another such feature (forgot the name) is clearly stated to cause small positioning errors, so for anything vaguely precise should be avoided or used without those features active.
As luck would have it, there are step sticks with TB67S109 chips, i have some, found out i never need to push 3.5A on a 3D printer!