User guide

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Air Assist System
Air Assist is employed with a backsweep or cone to direct air flow onto the material being processed during laser
material processing. This feature also provides compressed air to the optics (mirrors and lenses) in the system,
reducing contamination. Air assist aids in removing smoke and debris from the laser processing area and
directing it to the exhaust. It also helps reduce the heat affected zone in the material being processed and helps
to prevent flame up when processing certain materials. Use of this system requires a supply of 60 PSI, clean, dry
oil free compressed air or gas. Air can be provided by the ULS Computer Controlled Compressed Air Unit. The Air
Assist System consists of a backsweep or a cone fitting and an ULS Computer Controlled Compressed Air Unit.
The backsweep fitting is geared more toward engraving applications and the cone is geared more toward cutting
applications.
Air Assist Back Sweep
The Air Assist Back Sweep directs debris and smoke away from cutting or engraving process toward the exhaust
at the back of the laser system. When using the air assist back sweep, you can adjust the angle of the air jet
coming from the back sweep as necessary to optimize the effect of the air assist.
Installation
1. Remove (if present) the plug screw (1) with a flat bladed screwdriver. Attach the mounting block (2), if not
already attached, with the provided mounting screw using a 3/32 Allen wrench (once the mounting block
is installed, it can be left in place).
2. Using the provided 3/16 nut driver, attach the needle valve (1) to the port from which you removed the
plug. Be careful not to cross-thread the small fitting when installing and do not over tighten it (the needle
valve will be left permanently installed on the carriage from this point forward). Attach the air assist back
sweep (2) to the mounting block using the thumbscrew (3) and adjust it up or down (4) as necessary.
Tighten the thumbscrew once it is at the desired height.