How to Zero the Axes on the Haas VF2

Start up the machine.

Load the edge finder.

Load the workpiece.

Find the "MDI" button.

Press the "MDI" button.

The machine is now in MDI mode.

Add "S1800" as the only command in the MDI screen.

Cycle Start to set the commanded RPM.

Find the "CW" button.

Press the "CW" button.

The spindle will begin spinning at 1800 RPM, unless the door is open.

Make sure to close the door, there are automatic limits on RPM when the door is open.

Jog the workpiece and spindle to bring the edge finder near the desired corner for X and Y offsets.

Lower the spindle until the tip of the edge finder is below the top of the workpiece.

SLOWLY, jog (.001 increment) the edge finder in X direction toward the workpiece until it contacts.

Keep incrementing the edge finder until it lines up and then "pops" over center.

At the exact point it "pops," the x offset is .1 from the edge of the workpiece.

On controller, cursor to G54 "X" column under OFFSET, and select PART ZERO SET.

Be sure to add (or subtract) 0.1 to compensate for edge finder radius.

To check the offset, raise the edge finder and jog over until G54 value matches current X POSITION. Does it look right?

Repeat step 5 to zero the Y-axis.

Be sure to PART ZERO SET at the G54 "Y" column under OFFSET, and then compensate again .1 for the edge finder radius.

Again, check by positioning the tool such that Y POSITION and the G54 Y entry match.

Find the "STOP" button next to "CW."

Press the "STOP" button.

The spindle will stop spinning.

Unload the edge finder or switch to the tool being used on the workpiece.

Jog the tool overhead of the workpiece to a place above a flat part surface.

Jog the tool downwards, stopping about 2 inches above the workpiece.

Using a block of known thickness (e.g., 1-inch), lower the tool and test if the block can pass under the tool or not.

Be careful not to bring the tool down directly onto the block, as the tool may break. Instead, position the tool, then slide the block under to check.

Repeat the previous step until the block barely moves under the tool.

Set the tool offset value by using TOOL OFFSET MEASUR when the cursor is positioned under the Length Geometry column under OFFSET for the tool number being used.