Acu-Rite CNC 3500i user manual 200

7.3 Probing Cycles

To calibrate the tool probe:

Jog the calibration standard (the calibration standard should be in the spindle) to the top of your work piece or a common surface where all your tools will be calibrated to, and set its tool-length offset to the top of the work piece or to wherever you would like your Z zero to be.

To calibrate the tool, jog the tip of the calibration standard to the proper spot.

Touch the Teach button.

Manually jog the calibration standard over the probe stylus center and less than 0.1" (2.54 mm) above the probe stylus. It should be no more than 0.1" (2.54 mm) from the center of the stylus.

From the Manual Data Input Mode with G-code MDI selected, type G150 D(n), and touch the Start button. Where D is the exact diameter of the calibration standard.

The Z-axis initially goes down and touches the top of the probe stylus at the feedrate specified in the ZFirstPickFeedRate_Medium machine setup parameter. Then retouch at the slow feedrate, specified in the ZFirstPickFeedRate_Slow machine setup parameter, establishing the zero probe stylus top.

Then incrementally rapid up whatever value that is in the ZRetractAmount machine setup parameter.

The spindle comes on at the RPM specified in the calibAndToolMeasurementRPM machine setup parameter and then the calibration standard moves over an incremental amount that is equal to (Half the value entered in the D cycle parameter + Half the value entered in the nominalProbeStylusDiameter machine setup parameter + The value in the XYRetractAmount machine setup parameter). The direction the probe moves over depends on what is placed in the probeOrientation machine setup parameter:

Example:

-1 Go first to the left

1Go first to the right -2 Go first to the front

2Go first to the back

200 7 Programming: Canned Cycles, sub-programs