trouble shooting a tool length sensor

[Evan Corey]

Lately my tool length sensor has been giving me an inaccurate measurment nearly every time. What I have been doing is repeating the tool length process untill I get two measurements in a row that are within .002 difference and go from there, starting my program and making adjustments to the daylight on the fly. Not an ideal method of fixing the problem.

Please help.
thanks.
EC

[Daniel Odom]

See if there is a build up of dust in it.

[Evan Corey]

No, I have a weeky cleaning rutine for the entire mechine. Another trait of these errors, when the typewriter is in position above the sensor it will assend to the Z boundry rather then decesnd to the sensor.

[David Egnoski]

This is the same symptom that I experienced a few months ago. The plunger inside the sensor had a small amount of fine dust on it. Carefully cleaned it and reassembled. Problem solved.

[Brad McIntosh]

Evan has been contacted by our service department here at CNC Automation. Hopefully our team can help to rectify his ATLS situation.