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MINITECH
CNC Mini-Mill User's Guide
Setting Home and Probe Positions
The home switches and tool probe sensors are optional items used to Home the machine and
check to the position of the tool’s tip. This is an advanced feature for experienced operators.
1. Press Home All from the main screen near the Work Coordinates This brings the Z up to
its highest position and stops. Then Y moves back to the switch and stops. X will then
moves the table to the right, tool to the left and stops.
2. Use Jog to move the tool so it just presses the switch for the tool probe. A Green light will
come up on the screen in the Tool section. This is the lower right side of the Main Screen.
3. Select the Tools/Fixture bottom from the Main Screen and it will lead you to a new screen.
On the far right look for Tool Probe Position and press Set. This sets the position for the
probe.
4. Press the Page UP key on your key board and raise the tool about ¼” above the Probe.
Make sure the Green light goes Off. This is the Probing Start Position and you need to
press Set under the Probing Start Position.
5. Next use the Jog commands from the Main Screen to move the tool to your Fixture Home
coordinate. This is usually the center of the rotary table, or a known start location for your
part. Once in that position, press the Set button on the Fixture screen for Fixture1 This will
set XY and store a hidden Z value. Note that Z Probe to Fixture height did not change it
will be calculate by the software in the next step. You have 4 positions available for the
Fixture home. Most users will only use the Fixture 1 (G54).
6. The next step is to press Probe 1st Tool. This will home all axes, probe the tool, and auto-
calculate the Z to probe Height Value.
7. From here on you will use Home and Probe and Probe for tool setting, the first when
starting up the machine the latter when changing tools during a machining operation.
© 2012 Minitech Machinery Corp. 29