/diy/ - Do It Yourself

>>2755574
check if the rails are designed for load or unloaded movement: loaded will require a minimum weight to be pressing the 'car' toward the 'rail' before it will move freely. Probably NOT what you want on a 3dprinter.

>>2755544
I've read that aluminium/copper foil *tape* gives significantly larger detection ranges for inductive probes, if it's anywhere near the rated range for iron (usually ~ the same as the probe external diameter) then you should be able to detect it through glass from up to <10mm away with a 12mm diameter inductive probe. Or you could get a springsteel bed plate like they sell with PEI etc, and just use it to sit under the glass to inductive probe against.
Also: iirc capacative sensors work on glass, and have the same form factor as inductive probes.