I use this setup even with #83 carbide drills and happily report that none has broken... (during height setting that is)...
Works for metal parts. I hook up the multimeter and check for conductivity in the 0-200 Ohm range. I lower the Z axis 0.0005" at a time and give it a couple of secs to get a reading, then go on.
I'll whip up a LED and a buzzer to simplify things and not have the time delay...
take care,
tom
Works for metal parts. I hook up the multimeter and check for conductivity in the 0-200 Ohm range. I lower the Z axis 0.0005" at a time and give it a couple of secs to get a reading, then go on.
I'll whip up a LED and a buzzer to simplify things and not have the time delay...
take care,
tom