Inspired by some touch probes described in other threads I built one today from 1/2" ball bearings, some pins, spring and 5mm Acrylic. Works pretty neat, and I though I might just as well post it here. Now I just got to find out what to use it for
Materials:
Glued together:
Assembled:
Probing a coin with 8/1000" grid:
Resulting .stl file. The mint pattern depth of this coin is only 0.15 mm or 6/1000 so I guess I can not expect more accuracy:
In operation. No this is no woodpecker, this is the Z-axis stepper:
http://www.youtube.com/watch?feature...&v=LvSeUWyTnCU