NEJE Laser Engraver 80W E40 A40640 N40630 Laser Engraving Machine Cutting Engraver Laser Module Wood Cutter For CNC Max Plus

A40640 Laser Module

N40630 Laser Module

A40630 Laser Module

ABOUT AIR ASSIST

When do you need air assist?

Air-assisted engraving or cutting can only be used for engraving or cutting that produces more carbonized substances. Generally, the depth of engraving is less than 1mm, and the cutting of plywood less than 2mm does not require air assist. A small fan can be used to blow off the smoke generated by the engraving. Air assist is not recommended when engraving images, and adding air assist at this time will destroy image details.

What kind of air pump is suitable for cutting?

The main meaning of air assist is to blow off the carbonized material produced by cutting, and the general oxygener and electromagnetic inflator have almost no meaning. only the pressure of the oil pump and air compressor (0.4-1.5mPa) has the effect of blowing away the carbonized material. but it should be noted that the air of the oil pump contains oil and cannot be directly used for the air-assisted module of the closed cavity, otherwise the oil will contaminate the lens, resulting in power drop or damage to the lens. The air pressure of the air compressor can be used for a short time with the closed cavity, but When used for a long time, the water-containing gas will contaminate the lens, cause the power to drop, and even damage the lens.

How to add air assist on the A40640 laser module?

The NEJE A40640 module is an adjustable focus module. For the consistency of testing, the NEJE factory adjusts the module to 55mm focal length by default. This focal length is suitable for cutting thicker materials. This focal length is generally not commonly used. When you are suitable for the first use of the product, it is recommended to use a flat-head screw to adjust the focal length to about 30mm, which is 1-2mm away from the light baffle. This focal length has a very high focal power density and can directly engrave grayscale stainless steel images gray-black stone and other hard materials, NEJE A40640 can directly engrave 3D hardwood and other materials, and does not require air assistance, due to the high energy density design, A40640 can directly vaporize general wooden materials during the engraving and cutting process, so it is also unecessary to add air assist.

Digital PWM Wave Pulse Signal Generator Adjustable Frequency Duty Cycle for NEJE Laser Module tester board Specification

Power input: DC 12V
Output: PH2.0 4pin (12v,GND,PWM/TTL,Temperature)
mode: 3 modes (off, manual pwm, pwm / ttl in)
temperature display: YES
pwm display: yes
Manual PWM control: YES

Note(Please pay attention)

1. Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!
2. Do not engrave mirror objects，Pay attention to fire，Pay attention to pets when working！
3. Smoke will be generated when burned, please pay attention to smoke exhaust indoors.
4. The warranty period of laser module is one year. If you have any quality problem(Except individual situation like using the laser module more than 30 minutes per time and casue the damage ), please feel free to ask our customer service for a help.
5. If your laser module has any problem, please DO NOT dismantle it without our permission. It will destroy the laser module.
6. If you have any quality problem about the machine, please feel free to contact us. Many operative problem can be solved according to your video and problem description. Thank you in advance.
7. It can also be compatible with other cnc equipment, such as 3d printers, CNC MIlling, etc., but you need to master a certain knowledge of pwm waveform control.

Please Note

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