101
TRAK Machine Tools
Southwestern Industries, Inc.
TRAK TMC Mills with ProtoTRAK RMX CNC Safety, Installation, Maintenance, Service & Parts List
6.4.3
Code 502: Set Base Tool Offset
Defines the distance from Z home position to the top of the table, using your base tool as reference.
6.4.4
Code 505: A Axis Motor Index
Added prompt for the A axis motor index. The Index Angle Test enables users to find the location of the
4
th
axis motor index relative to the home sensor. The value for A Index Angle must be more than 20° in
either direction, from 0°. If this angle is off, it can be fixed by unbolting the adapter plate, rotating it
180°, and installing it again.
6.4.5
Code 506: Set 4
th
Axis Offsets
Set sets the Y and Z offsets for the 4th axis unit. The following describes what each offset is.
•
Y Offset
-
The distance along the Y axis from Y home to the centerline of the 4th axis.
•
Z Offset
-
The distance along the Z axis from the top of the table to the centerline of the 4th
axis.
To set the Z offset location, there are a couple of ways we recommend measuring this offset.
Gage Pin Method
1.
Mount a ground gage pin in the chuck of the 4
th
axis.
2.
Make sure the pin is running true before measuring the height. Adjust the pin in the jaws as
necessary to minimize runout. You may also want to make sure the chuck is running true before
clamping down on the pin.
3.
Take a dial indicator and set the indicator and DRO of the control to zero when touching the top
of the table.
4.
Now take the indicator and move the Z axis up and zero the indicator out on top of the pin. Find
the highest point of the pin.
5.
Take this DRO Z value and subtract ½ of the diameter of your ground pin. This is your Z offset.
Cutting a Part Method
1.
Mount a round part in the 4
th
axis.
2.
Cut a flat at 0° on the part.
3.
Rotate the part 180° and cut another flat on the part. Make sure to cut the flat at the same Z
depth for both cuts.
4.
Take a micrometer and measure the distance between the flats and note this value.
5.
Take a dial indicator and set the indicator and DRO of the control to zero when touching the top
of the table.
6.
Now take the indicator and move the Z axis up and zero the indicator out on top of the flat on
your part.
7.
Take this DRO Z value and subtract ½ of the number you came up with in step 4. This is your Z
offset.
This service code is automatically backed up when you save your configuration file in service code 142.
