The Laser Pointer Tool is used to provide a reference point for zeroing the X and Y axes.
Selecting a point on your stock and zeroing the X and Y coordinates will automatically transfer those coordinates to the other spindles on your machine.
The Dry Run Laser Pointer can also be used to perform a dry run of your machined part to ensure it will fit on your stock.
While performing a Dry Run of your G-code file, Coolant On/Off commands, tool changes, and changes in Z-axis height will be ignored.
A TTL output can be assigned to turn the laser pointer on and off. The laser will automatically turn on when the Laser Pointer tool is selected. This can be done using a MASSO relay module if required.
INFORMATION: To exit Dry run mode you must press the Dry Run Button 
and the laser will turn off and you will return to the previous tool. You can not exit dry run by changing to a different tool as Dry Run ignore tool change requests.
The laser used for this is a small, low-power laser, typically 5mW or less, and may be either a spot or crosshair type.
In general, a lower power laser is easier on the eyes, but this must be balanced with the ambient light levels in the workspace.
Configure a TTL output as Laser Pointer On/Off.
Wire the laser as shown in the diagram below. Ensure the correct voltage is supplied to the laser, otherwise it may be damaged.
Enter the X and Y offset values from the main tool that will be used as the machine reference. This is usually the Main Spindle, Plasma head, or Water Jet head.
All Multi-Head offsets must reference the same head.
The Dry Run laser can be mounted on either the Z axis or the X axis.
If the laser is mounted on the Z axis, it must be aligned so that its position does not change when the Z axis moves up or down.
To align the laser:
Mark a reference point on the table.
Raise and lower the Z axis.
If the laser point moves away from the reference point, adjust the laser position in its mount until it aligns again.
This alignment must be performed for both the X and Y axes. Once correctly aligned, the laser point will remain on the same reference mark throughout the full Z-axis movement.
If the laser is mounted on the X axis, it must also be aligned in the X and Y axes so that the laser continues to point at the same location as material height changes.
All Multi-Head offsets must reference the same head, which is typically the Main Head (for example, the spindle on a mill).
Ensure that the head being calibrated has its offset values set to 0 in the Multi-Head Settings page.
Home your machine.
Ensure the current tool is the main head.
If not, change to it using MDI, for example:T1 M06
Make a small reference mark using the main head tool.
For example, a V-bit can be used to create a clearly defined mark.
Zero the X and Y axis DRO.
Change to the Dry Run Laser by going to MDI and pressing 
button.
Jog the laser pointer to the reference mark created by the main head and align it.
Read the X and Y axis DRO values and enter these values into the X and Y offsets for the Dry Run Laser.
If the correct values have been entered, the DRO will now show 0 on both the X and Y axes.
Exit the Dry Run Laser by pressing the button in MDI.
If the values entered double the DRO reading instead of making it 0, change the value to positive or negative as required.
For example:106.753 would become -106.753, and vice versa.
Your Dry Run Laser is now calibrated.
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In MDI, select . This will automatically turn the laser on and place MASSO into Dry Run mode.
While in Dry Run Mode, the Dry Run icon will flash on the screen. 
While Dry Run Mode is active:
The Spindle or Plasma torch will not start
Coolant will not turn on
The Z axis will not move under G-code control, including probing cycles
You can use the laser to zero the X and Y axes if required. When leaving Dry Run mode, the coordinates will be offset relative to the newly selected tool.
You can load your G-code file while in Dry Run mode if it has not already been loaded.
Run your G-code file as required. The laser will show how the tool path will move when machining the part.
To exit Dry Run Mode, press the button. The laser will turn off and you will return to the previous tool.
You cannot exit Dry Run mode by changing tools, as Dry Run ignores tool change requests.
There are no dedicated buttons on the F2 screen associated with this tool.
Dry Run can also be used without a laser pointer.
If you are not using a laser, leave the X and Y offsets set to 0 in the Multi-Head Dry Run Laser Pointer setup screen.
This will move your spindle, plasma torch, or other head around the table, indicating the cutting path.
The Z axis will not move while under G-code control.
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