ProbeTesting

From Shopbot Wiki

Testing the operation of a ShopBot Probe

The led light on the body of the new optical probe only tells you if the internal switch in the probe is working, NOT if it's connected and communicating correctly with the input switch in the control box. The real test of any kind of input switch connection are the input switch indicators in the red control panel in the ShopBot Control software.

Put the probe in your router or spindle and plug the wire into the probe connection..the indicator light for the #1 input should be ON and the display should look similar to this:

The #1 Input switch indicator showing switch is ON
The #1 Input switch indicator showing switch is ON



Move the tip of the probe gently with your finger. The indicator light should go OFF and look like this:

The #1 Input switch indicator showing switch is OFF
The #1 Input switch indicator showing switch is OFF



If the indicator light on the control panel doesn't turn off when you move it with your finger, and back on when you release it, the control box and the software don't know when the switch has been triggered and the probe must not be used until this problem is fixed or damage can occur to either the probe or the pattern that's being probed.

It could be a connection or internal problem with the probe itself, but since by default the Z-zero plate and the probe are connected to the same input connection, one simple possibility is that your Z-zero plate is making contact with the body of tool when you're not using it and therefore with ground, keeping the circuit completed so that the probe can't break the circuit and turn off the input switch. With your Z-zero plate in it's normal, resting position, is the #1 indicator in the red panel on when the probe is unplugged? If so, try to find another location for your z-zero plate where it isn't contacting the grounded metal of the tool...an insulated holder perhaps.

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