Universal Laser Systems X-600 Troubleshooting Guide download pdf (Page 32)

OPERATION AND PRINTER DRIVER CONTROLS

Section 3-7

Manual Motion

When in the Viewer mode, the Manual Motion screen can be accessed by pressing the XY/Y button.

Once opened, you can toggle between X-Y motion and Z- Motion. The selected axes can then be moved

manually using the Direction Keys.

Focusing the Laser

The laser beam passes through the focus lens and converges to a small spot, called the focus point,

approximately 2 inches from the bottom of the focus carriage when using a 2.0 lens. In order to engrave

or cut properly with the laser beam, the material must be placed exactly at that focus point. To

accomplish this, the Z-axis engraving table moves up and down. There are currently 3 methods used to

focus the laser beam to the surface of the material: 1) manually by using the focus tool, 2) the Z Position

Method using the Auto-Z feature, and 3) Auto Focus Sensor.

Focus Tool Method

First, select Auto-Z Disabled in the System Options menu or the print driver. This will insure the Z-table

will not move unless intentionally commanded by the operator. Place your material on the engraving or

cutting table. Visually make sure that the height of the material will not interfere with the focus carriage

when it moves over the material. Select XY/Z and use the Motion Control buttons to position the focus

carriage. Again using the XY/Z button to select Z, move the Z-axis Table up or down.

Place the focus tool on top of the material and with the focus

carriage directly above it, raise or lower the table so that the

flat edge the tool rests against the front side of the focus

carriage. Slowly raise the table until you observe the tool

either tilting or sliding away from the focus carriage. This will

occur when the bottom edge of the focus carriage meets with

the top of the beveled edge of the focus tool. The objective is

to stop moving the table at the point where the tool just starts

to move or tilt.

The procedure must be repeated whenever a material of a different thickness is required.

WARNING: To avoid damage to the focus lens, avoid positioning the focus tool underneath

the focus carriage.

Sometimes it is desirable to be slightly out of focus when engraving or cutting. It widens the

beam at the surface of the material to soften the image or create a wider cut line.

WARNING: DO NOT engrave or cut too far out of focus, as this can be a potential fire

hazard. A maximum of .05 inches above or below precise focus should be the absolute limit.

From a physics point of view, there is no difference between raising the Z-axis table a specified distance

from the focal point and lowering the table the same distance from the focal point. However, from an

applications point of view, we recommend lowering the Z-axis table when intentionally RASTER

ENGRAVING out of focus and raising the Z-axis table when intentionally VECTOR CUTTING out of

focus.

Z Position Method and Focus Position Calibration

The Z position method enables the operator to set focus position by entering the thickness of the material

in the printer driver.

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Universal Laser Systems X-600 Troubleshooting Guide Page 32

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