S3MIH3MI
Active Member
- Joined
- Feb 25, 2011
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I have been using this for some time now. I know there is 20 different ways to do this, but this was something simple.
It's a piece of two sided copper clad circuit board. I cut a slot about 3/4" from one end and soldered a tab to hold a button cell 3 volt battery in place.
Then I placed an LED across the bridge as well as a small jumper to the back side of the board. With it flat on the work piece, when the cutter comes into contact with the board, the LED lights up.
I have the offset programmed in Mach 3 for the thickness of the board.
It's a piece of two sided copper clad circuit board. I cut a slot about 3/4" from one end and soldered a tab to hold a button cell 3 volt battery in place.
Then I placed an LED across the bridge as well as a small jumper to the back side of the board. With it flat on the work piece, when the cutter comes into contact with the board, the LED lights up.
I have the offset programmed in Mach 3 for the thickness of the board.
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