Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 137)

setup and OperatiOn
HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3 3-29
Hypertherm CNC beam centering
Using the “tape shot” method for beam centering
This method allows for very precise and accurate adjustment of beam centering within the nozzle bore. Use the
information on the following pages to prepare for and run the Tape shot procedure.
tape shot procedure
1. Turn OFF the laser beam and verify that it is in a disabled state.
2. Apply a thin layer of ink or other colored marking material to the face of the nozzle. An ink pad works well for
this purpose.
3. Affix a small piece of adhesive tape to the face of the nozzle. Any type of tape may be used. Firmly press the
tape onto the face of the nozzle and note its orientation. Be careful not to slide the tape when you press it
onto the face of the nozzle.
4. Re-enable the laser.
5. Pulse the laser ON for a short duration (10-30 milliseconds) at low power (100-200 W) using the method
described below. You may need to vary the duration and power settings to determine the optimum settings for
creating a small, clean hole in the tape.
6. Remove the tape and inspect it using the magnifying loupe provided with the laser system or other magnifying
glass. The hole created by the laser pulse should be clearly visible inside the center of the nozzle bore on the
tape. The nozzle bore will be visible because of the ink that was applied to the nozzle.
7. If inspecting the tape reveals that adjustment is necessary, use the beam centering procedure on the previous
page to move the focusing lens in the same direction in which you wish to move the laser beam (if the laser
hole is too close to the front of the nozzle, move the lens back).
Beam is centered Beam is not centered
Hole from laser pulse
Nozzle bore
8. Repeat steps 1 – 7 until the beam is centered in the nozzle bore.