MRZP Rough Set

Next Generation Control Mill Operator's Manual

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This procedure establishes basic values for MRZP, which you then refine with the finish set process. Note that you should do this procedure only at new rotary installations, or when you are unsure if your current MRZP values are close enough to do the finish set procedure. To do this procedure, you need to know the diameter of the center bore in your rotary platter.

  1. Load or command the work probe into the spindle.
  2. Jog the probe tip to approximately 0.4" (10 mm) above the approximate center of the ring gauge or bored hole.
  3. Press EDIT.
  4. Select the VPS tab, then use the RIGHT cursor arrow key to select Probing, Calibration, MRZP Calibration, and then MRZP Rough Set.
  5. Highlight variable C, and then type the diameter of the ring gauge or bored hole. Press ENTER.
  6. Highlight variable H, and then type the approximate distance between the rotary platter surface and the trunnion’s center of rotation. Press ENTER.
    note: This distance is approximately 2" on a UMC-750; refer to your rotary unit’s layout drawing to find this dimension for other units, or follow the procedure A-Axis Center-of-Rotation Offset (Tilting Rotary Products) .
  7. Press CYCLE START to immediately run the probe program in MDI, or press F4 to choose to output the probing program to the clipboard or MDI to run later.
  8. When the probing program runs, it automatically places values in macro variables #10121, #10122, and #10123. These variables show the machine rotary zero point axis travel distance from the home position in the X, Y, and Z Axes. Record the values.
    note: Press CURRENT COMMANDS and select the Macro Vars tab to view the variables. When the cursor is in the window, you can type a macro variable number and press the DOWN cursor arrow key to jump to that variable.
  9. Enter the values from macro variables #10121, #10122, and #10123 into Settings 255, 256, and 257, respectively.
  10. Do the Finish MRZP Set procedure.

Be aware: Many service and repair procedures should be done only by authorized personnel. The service technicians at your Haas Factory Outlet (HFO) have the training, experience, and are certified to do these tasks safely and correctly. You should not do machine repair or service procedures unless you are qualified and knowledgeable about the processes.

Danger: Some service procedures can be dangerous or life-threatening. DO NOT attempt a procedure that you do not completely understand. Contact your Haas Factory Outlet (HFO) and schedule a service technician visit if you have any doubts about doing a procedure.