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Tool Probing / Zeroing

a.      Probe each tool length IMMEDIATELY after loading, as forgetting to do so can result in extensive tool and machine damage.  If you don’t have time to probe a tool, don’t load it, as the consequence can be disastrous.

b.      With the turret in the home position, CAREFULLY lower the tool probe with both hands

c.       In the Tool Offset Menu, ensure the proper X or Z offset register is highlighted before zeroing (press Offset to cycle through the different offset menus).  For example, when probing the Z tool offset for a turning facing tool that is in slot number 1, highlight the Z offset in the same row as tool number 1.

d.      CAREFULLY hand jog the tool within 0.1″ of the probe in either the X or Z direction (whichever side you are zeroing), select the 0.001 or 0.0001 increment, and press and hold the directional arrow to move the tool until it touches off on the probe.

e.      You will hear a beep that confirms the tool has been zeroed, and the tool will stop advancing.

f.        CAREFULLY back off the tool probe using the directional arrows. Once you reach a safe distance and the tool probe has been put away, send the turret home (G28)

g.      When probing tools, understand the wear offsets are automatically reset to zero.  This means if you had a wear offset previously, you won’t any longer J.

h.      Tool Tip Type

                                                  i.      Tool Tip Type defines the orientation in which a tool was zeroed, as if you were looking down onto the top face of the probe.

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  ii.      Turning and Facing Tool: Tip Type 3

                                              iii.      Drills: Tip Type 7

                                               iv.      Part Off Tool (Zero on TSS): Tip Type 4

                                                 v.      Part Off Tool (Zero on HSS): Tip Type 3

                                               vi.      Boring Bar: Tip Type 2

i.        Multiple Offsets for One Tool

                                                  i.      Programming for part-off tools often benefits from having two zeros: one on the headstock side of the tool and one on the tailstock side of the tool.

1.      Headstock Side (HSS) – T1111

2.      Tailstock Side (TSS) – T1121

8.      Put tools away when done.  When you are finished with your part, unload any tools you loaded, returning the tools to their appropriate containers and to Mike for storage, and return toolholders and collets to their respective carts or drawers.  Failure to do so will result in suspension of CNC use privileges, because it’s disrespectful and that’s how tools are lost.

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