Probing Z in a pocket

I’m looking to do an advanced vcarve at the bottom of a pocket for a catch tray and plan to use two files because the safe retract height takes forever when it references the top of the stock instead of inside the pocket.

I’d like to probe the inside of the pocket for the vcarve but the edges on the bottom of the bitzero prevent it from sitting flat. Any suggestions?

If you still have the zero set from when the original file was cut, it should work to go to zero, then move to an empty area, then jog to the height of the pocket bottom, then set zero there — you can verify it be lifting up and jogging into the pocket.

You can type in value rather than clicking “Set Zero”. If you know the depth of the pocket, move your Z to zero and type in that depth as a positive value. Essentially telling the machine, “You are currently at Z ___”.
You don’t really even have to move to Z zero, you can just add the pocket depth to the current Z value & enter it. If your Z has retracted to Z 3.736, and your pocket depth is 0.75, type in 4.486

If you’re concerned that the bottom of the pocket is not exactly where you think it is, you can use some other known height object like a gage block that will set in the pocket & touch off to the top of that.

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