TC820si & TC820LTYsi Lathe: Calibrate Tool Setters

Measure the parallelism of the of Tool Setting Probe trigger points to the axis motion using a dial indicator with resolution of at least 0.0001".

Measure X+ offset from basic point 1.

Measure Z+ offset from basic point 1

Measure X- offset from basic point 2

Measure Z- offset from basic point 2

Using the measurements from step 1, follow the illustration to show the fine adjustment needed to align the Tool Setting Probe all four sides of the probe within 0.0008" (0.02 mm) of the axis motion.

The Tool Setting Probe can be adjusted by loosening the 4 screws holding it in place enough to allow it to rotate.

Adjust the Tool Setting Probe to align all four sides of the probe within 0.0008" (0.02 mm) of the axis motion using the method shown in step 1.

After tightening all four screws recheck the parallelism to make sure the Tool Setting Probe has not moved out of alignment.

Go to TSM and set the WORK OFFSET to G54.

Go to the work offsets page and select G54…G599.

Be sure to zero both axes for G54.

Put a ground pin in the spindle Example 1.0” diameter.

Add three tools to the turret in any of the 12 positions. Use these tools:

1 = CUTOFF,

2 = BORING BAR

3 = RIGHT TURN/FACE

Open the tool list from the left menu.

Select turret location of CUTOFF tool. Press NEW TOOL from the right VSK.

Select PLUNGE CUTTER and click on the 2nd tool tip position. Press OK.

Change the name of the tool to CUTOFF_TOOL_.125. ( NOTE: .125 may be any size tool width)

Select turret location of BORING BAR. Press NEW TOOL from the right VSK.

Select PLUNGE CUTTER and click on the 3rd tool tip position. Press OK.

Change the name to BORING_BAR_.500.

Select turret location of RIGHT TURN/FACE tool. Press NEW TOOL from the right VSK.

Select ROUGHING_TOOL and click on the 1st tool tip position. Press OK.

Select ROUGHING_TOOL and click on the 1st tool tip position. Press OK.

Change the name to RIGHT TURN/FACE_TOOL.

Go back to the TSM screen.

Make sure you have room for the turret to spin without hitting anything.

Press SELECT TOOL from the right VSK.

Highlight the CUTOFF_TOOL_.125. Press OK. ( NOTE: .125 may be any size tool width)

Followed by CYCLE START on the MCP. The turret will rotate to put this tool into position.

Select MEASURE TOOL from the HSK.

Using a .02” thick feeler gauge, pinch the tool against the positive side of the pin in the spindle so that it just has enough resistance.

Select MANUALLY from the VSK. Select X.

In the X0 window, enter the diameter your tool is touching. ie; 1.040”.

Diameter = Pin size + feeler gauge x 2

Press SET LENGTH from the VSK. The X dimension in the TSM window will show the new value.

Select Z.

Using the feeler gauge, pinch the tool off the end of the pin.

In the ZO window, enter the width of the tool plus the width of the gauge. ie; .145”.

Press SET LENGTH from the VSK. The Z dimension in the TSM window will show the new value.

Go back to the TSM screen.

The following is easier if you have a door switch jumper.

Make sure you have room for the turret to spin without hitting anything.

Press SELECT TOOL from the right VSK.

Highlight the BORING_BAR_.500. Press OK.

Followed by CYCLE START on the MCP. The turret will rotate to put this tool into position.

Select MEASURE TOOL from the HSK.

Using a .02” thick feeler gauge, pinch the tool against the negative side of the pin in the spindle so that it just has enough resistance.

Select MANUALLY from the VSK. Select X.

In the X0 window, enter the diameter your tool is touching. ie; -1.040”.

Press SET LENGTH from the VSK. The X dimension in the TSM window will show the new value.

Select Z. Using the feeler gauge, pinch the tool off the end of the pin.

In the ZO window, enter only the width of the feeler gauge. ie; .020”.

Press SET LENGTH from the VSK. The Z dimension in the TSM window will show the new value.

NOTE: The tool page will now show the proper tool length offsets for both tools.

Move the tool away from the end of the pin.

Deploy the probe manually by pulling release pin at the base of the arm and swing probe arm into position.

Press BACK on the VSK.

Press CALIBRATE PROBE.

Press Z then align the tool tip about ¼” from the right side of the tool setter probe button.

NOTE: The illustration will show you which direction it is going to travel. Use the drop-down menu if needed to change the direction.

Press CYCLE START on the MCP. The tool will move towards the probe until the light turns green and then it will move back away. The Z+ side of the probe is now calibrated.

Press X then align the tool tip about ¼” from the bottom side of the tool setter probe button.

NOTE: The illustration will show you which direction it is going to travel. Use the drop-down menu if needed to change the direction.

Press CYCLE START on the MCP. The tool will move towards the probe until the light turns green and then it will move back away. The X- side of the probe is now calibrated.

Move the tool away from the tool probe all the way in both axes.

Go to TSM and press TOOL LIST from the right VSK. Select the CUTOFF_TOOL_.125.

Press OK followed by CYCLE START on the MCP. The turret will rotate to put this tool into position.

Press MEASURE TOOL on the VSK.

Press CALIBRATE PROBE.

Press X then align the tool tip about ¼” from the top side of the tool setter probe button.

NOTE: The illustration will show you which direction it is going to travel. Use the drop-down menu if needed to change the direction.

Press CYCLE START on the MCP. The tool will move towards the probe until the light turns green and then it will move back away. The X+ side of the probe is now calibrated.

Press Z then align the tool tip about ¼” from the left side of the tool setter probe button.

The illustration will show you which direction it is going to travel. Use the drop-down menu if needed to change the direction.

Press CYCLE START on the MCP. The tool will move towards the probe until the light turns green and then it will move back away. The Z- side of the probe is now calibrated.

Press the BACK button on the VSK followed by the AUTOMATIC button.

Press the Z button. Align the tool about ¼” from the Left side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The Z value on the tool will not change. This is the offset from machine Z zero.

Press the X button. Align the tool about ¼” from the top side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The X value on the tool will not change. This is the offset from machine Z zero.

Move the tool away from the tool probe all the way in both axes.

Go to TSM and press TOOL LIST from the right VSK. Select the BORING_BAR_.500.

Press OK followed by CYCLE START on the MCP. The turret will rotate to put the tool into position.

Press the X button. Align the tool about ¼” from the bottom side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The X value on the tool will not change. This is the offset from machine Z zero.

Press the Z button. Align the tool about ¼” from the right side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The Z value on the tool will not change. This is the offset from machine Z zero.

Move the tool away from the tool probe all the way in both axes.

Go to TSM and press TOOL LIST from the right VSK. Select the RIGHT_TURN/FACE_TOOL.

Press OK followed by CYCLE START on the MCP. The turret will rotate to put the tool into position.

Press the Z button. Align the tool about ¼” from the right side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The Z value on the tool will change to show the offset from machine Z zero.

Press the X button from the right VSK.

Align the tool about ¼” from the top side of the probe.

Press CYCLE START and the tool will touch off the probe and move away. The X value on the tool will change to show the offset from machine Z zero.

Move the tool away far enough to put the probe back into its home position.

Use the feeler gauge and touch the tool off the end of the pin located in the spindle. The Z dimension in the TSM should reflect the same number you originally used at the beginning of this process. Ie; .020”.

Use the feeler gauge and touch the diameter of the pin located in the spindle. The X dimension in the TSM should reflect the same number you originally used at the beginning of this process. Ie; 1.040”.