Service How To Procedures WIPS-L Calibration – NGC
Last updated: 09/15/2020

WIPS-L Calibration – NGC

Applies to machines built from: February, 2018

Introduction

ATP Installation
ATP Calibration

This procedure applies to ST/DS lathes with NGC control built after February 2018.

The Automatic Tool Presetter (ATP) needs to be installed and calibrated before calibrating the WIPS-L. If this has not been done perform these procedures.

WIPS-L Installation

The WIPS-L should be installed and aligned to the Spindle Center Line. If this has not been done perform this procedure.

Test the Probing System

1

Test the Work Probe

  • Start the Work Probe as follows:

Operate this code in MDI mode: M59 P2; G04 P1.; M59 P3

  • The lights on the OMI will turn off and a green light will start flashing on the probe.
  • If the probe operates correctly, you hear a "beep" each time you tap the probe tip.
  • Stop the Work Probe as follows:

Operate this code in MDI mode: M69 P3 

  • If the probe operates correctly, light on the OMI goes on, and the green light on the probe does not flash.

2

Test the Automatic Tool Presetter (ATP)

CAUTION: The Work Probe must be OFF for the Tool Probe to operate. If you attempt to probe the tool while the Work Probe is ON you may damage the Tool Probe stylus.

  • Navigate to the Devices/Mechanisms tab in the Current Commands window. Highlight the Probe Arm line and press F2 to extend the ATP arm.
  • Tap the probe stylus. If the probe operates correctly, you hear a "beep" each time you tap the probe tip.

Note: If the Tool Probe does not operate correctly, examine the wire connection from the control cable.

  • Press the F2 to retract the ATP arm.

Tram and Indicate Work Probe

1

Install a co-axial indicator into the chuck. Install the probe into the appropriate tool holder. For instructions see the installation guide linked above.

Go to VPS by pushing [EDIT] and use the arrow keys to navigate to VPS [1] >PROBING>CALIBRATION>Step 1 (Tram and Indicate Work Probe) [2].

To select the tool position that your probe was installed in press [Tnn] and [ATC FWD] or [ATC REV]. This will call the probe into position.

Push [SETTING] and use the arrow key to navigate to User Positions>Spindle Center Line. Write down the X-position [3] stored in the appropriate setting for the type of turret on your machine. VDI/Hybrid turret: Setting 319 or BOT/BMT turret: Setting 320

Hand Jog the X-axis to the written down X-position. Make sure that the Y-axis position is zero. Then Hand Jog the Z-axis so the co-axial indicator will sweep the probe stylus tip.

2

Sweep the probe stylus tip with the indicator. Keep the two tapered setscrews [1] snug and adjust the four flat setscrews [2] until the probe stylus tip is inline with the spindle centerline NTE 0.0005" (0.0127mm). Make sure all of the setscrews are tight when the alignment is done.

Push [OFFSET] then use the arrow keys to navigate to Tool tab and then to the X Geometry column for the tool number that the probe is in. Push either [F2] for a VDI/Hybrid turret or [F3] for a BOT/BMT turret. This will set the X-axis Geometry Offset. 

Set Work Probe Z Geometry Offset

1

Index the turret to the tool position that the probe is installed in. Default is the current active tool number.

Enter the Work Probe Offset that the probe will use.

Warning: Check that the probe arm has room to extend or damage may occur.

Push [F2] to extend the probe arm.

2

Hand jog the probe tip to within (.25”/6mm) of the ATP probe.

Push [CYCLE START] to set the Work Probe Z Geometry Offset.

Process to make a Master Gauge Ring

1

To create a Gauge Ring you will need the necessary tools to face, turn an ID bore, and turn an OD diameter. Round stock is needed to create the gauge ring. Recommended dimensions are Ø3.0” and 3.0” in length.

Use the ATP to probe all the tool geometry offsets for the tools needed to machine the Gauge Ring.

Set the Work Offset used (G54-G59).

Machine the gauge ring by facing the part, bore the ID, and turn the OD. 

2

Write down the work offset used to machine the Gauge Ring. (G54-G59)

Once you have machined the necessary features of the Gauge Ring continue to calibrate the Work Probe to the Master Gauge Ring.

Z Calibration to Master Gauge Ring

1

Dimension the Gauge Ring’s OD and ID using the proper measuring tools and record the values. The precision of the tool should at least be 0.0001”.

Note: Do not remove the part from the chuck to measure the part. Doing so will cause the part to not be aligned to Spindle Center Line.

Index the turret to the tool position that the probe is installed in. Default is the current active tool number.

Enter the Work Probe Offset that the probe will use.

Enter the Gauge Ring Work Offset that was written down to use as a reference point.

2

Enter the reference diameter which is calculated as (OD+ID)/2.

Enter the Z Rapid Approach distance from the face of the material.

Note: Recommended value is 0.5.

Push [CYCLE START] to probe the Face of the Master Gauge Ring.

X Calibration to Master Gauge Ring

1

Index the turret to the tool position that the probe is installed in. Default is the current active tool number.

Enter the Work Probe Offset that the probe will use.

Enter the Gauge Ring Work Offset that was written down to use as a reference point.

2

Enter 1 for OD Calibration and push [ENTER].

Enter the measured OD dimension that was recorded.

Enter the Z Rapid Approach distance from the face of the material.

Note: Recommended value is 0.5.

Enter the X Distance to position the probe away from the diameter to be measured.

Note: Recommended value is 0.25.

3

Enter the Z Distance the probe will move before probing the OD.

Note: Recommended value is 0.25.

Push [CYCLE START] to probe the OD of the Master Gauge Ring.

4

Enter 2 for ID Calibration and push [ENTER].

Enter the measured ID dimension that was recorded.

Enter the Z Rapid Approach distance from the face of the material.

Note: Recommended value is 0.5.

Enter the X Distance to position the probe away from the diameter to be measured.

Note: Recommended value is 0.25.

5

Enter the Z Distance the probe will move before probing the ID.

Note: Recommended value is 0.25.

Push [CYCLE START] to probe the ID of the Master Gauge Ring.

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