NEJE.WIKI | Products Install Support

Please find the operating instructions according to the model of the product you purchased.

NEJE.WIKI mainly provides the above services.
Please read the above content carefully when you receive the machine!

You can find the following information at

Software Download | Installation Guide | Air Assist Guide | Software Instructions | Firmware Update Guide | Focus Guide | Laser & Material database | Maintenance Guide | Safety attention.

NEJE will update material & tutorials on the NEJE official. If you have questions, NEJE will make videos to help you.

Join NEJE Group and learn more about laser knowledge of handling various materials.

For product operation questions, please log in: NEJE Document

We'd love to hear what you're thinking about. What can we do better? This is the place for you to vote, discuss and share ideas. NEJE Feedback

If you need to submit product after-sales questions, please log in to the NEJE Forum ( The NEJE forum will have NEJE staff and engineers to help you solve your problems, Welcome to join NEJE members. How to contact us?)


Tin33 review.

The Louisiana Hobby Guy review.

Correct focus adjustment for cutting with A40640 at focus 30mm.

Stainless steel grayscale engraving, the most powerful diode laser!

How to Adjust the Best Engraving Focal Length and Cutting Focal Length with A40640 Laser Module.

NEJE 3 Max with A40640 Laser Module Installation Instructions.

【Why NEJE modules are reliable and cheap?】Evanator (2021.12.27)

NEJE factory has consistently produced modules with excellent quality, outstanding performance for the past 9 years, and strictly fulfilled our after-sales service commitments. All NEJE modules use the most advanced Nichia laser LD, and the driver has excellent response , stable ripple and surge, LD has undergone 48-hour aging tests and developed complete peripheral accessories for our users.

As the NEJE brand becomes more and more popular, malicious labeling power has more and more serious impact on NEJE products.The sellers of NEJE have no choice but to follow. Here, NEJE factory solemnly apologizes to the consumers. NEJE will hold the sellers accountable and require immediate rectification. NEJE promises to consumers that NEJE modules provide a 2-year free warranty if it is the product problem. NEJE has generated a unique SN in each module as a service guarantee, no matter which store or channels you bought, you can get effective after-sales guarantee.

NEJE regards user value as the law of business survival.NEJE has been providing users with innovative and reliable laser products for 9 years. NEJE recognizes this management error and will review ourselves and continue to provide our users with low-cost and high-quality products and services.

In addition, regarding the power of some youtuber detection modules, this part of the bloggers is actually not professional. It would be irrational to guide consumers purely with power. The laser module involves optics, heat dissipation and drive design, and the knowledge inside is Very large. If the power you receive from the module is very high, it is likely to be used over current. The service life of such a module is difficult to guarantee. The overcurrent service life of the LD will be seriously reduced, and the current ripple of the laser drive Control, surge protection design, thermal management, etc. are all reliable guarantees for evaluating a laser module. To put it simply, a module with a 2-year after-sales guarantee is reliable!

【The A40640 laser output power statement:】

Dear consumers, NEJE first developed a dual-beam laser module in the past 2 years on the market,this module has the largest laser power and smallest laser focus on the market. After 2 years of optimization, NEJE drives has perfect ripple and surge protection, NEJE is also the only factory that has established its own perfect quality control of laser modules.So NEJE is confident and capable of providing users with free quality assurance for 2 years.As our A40640 model become more and more popular ,more and more imitators have appeared in the market to imitate NEJE,It is necessary for NEJE to make some technical explanations on laser power and focus:

the highest power of 450NM blue laser power diode is Nichia 0E. Nichia is the first manufacturer to develop blue LD,it is also the most advanced LD manufacturer. The maximum power of a single chip can reach about 5-7W. NEJE uses original Nichia laser diodes. The official current of Nichia 0E laser diodes is 3.5A, of which standard life is 20,000 hours. Redundancy can be 4A-5A; the current approach of Ortur and Atomstack is relatively radical, adjust the current to 4A-5A, this current has reached the power limit of Nichia 0E laser diode, at this current, the laser life and reliability performance will be greatly reduced.

NEJE set the current at 4A in the early stage, and afterwards adjusted the current to 3.5A after considering the reliability of our user’s long-term use. The early power of NEJE module was marked as 15W. Currently due to electric current reduction, life and durability performance are greatly enhanced, electric current adjusted to 3.5A, so the actual power is in the range of 10W-12W.NEJE A40640 module adopts internal FAC technology, in terms of optical design, the focal spot size is 2/3 smaller than the focal point compressed by the outer lens, and the engraving accuracy and cutting performance will be even excellent. But Ortur single laser module and Atomstack double laser module both use the external lens compression process,the focus point cannot be smaller than the NEJE A series module. This is determined by the design principle, and it is impossible to deceive consumers with pictures.

【Stainless Steel Engraving】Engraving stainless steel only needs a small enough focus point and enough light power, F30130, A40640, A40630 and A30130 module can directly engrave stainless steel, and N30820 and N40630 modules can engrave stainless steel by painted.

【Fixed Focusing】NEJE F30130 module can adjust the focusing to through a 5mm small plate directly , other modules are adjustable focusing mode. The adjustable focusing module can be a fixed position by adjusting, after passing a fixed thickness the material is assisted, the focal length is fixed and used.

【Air Assist Sets】NEJE provide 2 types of air assist sets. One is specially designed for F30130 modules and requires a dry air compressor to provide support, the other is a fixed stainless steel tube that can support other NEJE modules. NEJE 3D printing drawings are provided, which can be downloaded at These 2 air assist sets support 1.5mpa pressure, which can greatly improve the depth of engraving and cutting.

【What Does Standard for a Reliable Laser Module Have?】 Laser modules need to undergo an aging test to determine whether the heat dissipation of the module can match the requirements. The NEJE module has a built-in temperature sensing inside, and the 60mm threaded copper is attached with high thermal conductivity silicone grease, which can quickly export heat to make sure the temperature is controlled to keep a safe range. If the temperature and heat dissipation of the module cannot match the requirements, it can be screened out in the production process. At present, there is no module with temperature for sensing function to ensure a reliable service life in this industrial.

【How to Choose a Module?】Cutting - If you are only cutting applications within 8mm, NEJE recommends N30820 20W and N40630 30W are nice choice. These two modules can cut 3-4mm plywood under air assist mode. If you want to cut 8-20mm, you can choose A40630 and A30100 and A40640 module. If there is a requirement for cutting of speed, the A40640 40W module is recommended, F30130 is suitable for users who have requirements for work efficiency and air compressor equipment. This module can cut 4mm plywood at a time with a maximum thickness of 5mm, It adopts a very simple focusing method. The focal length of 5mm can block more than 95% of the light and safe to use. If you often engrave portraits, you just need one of the NEJE B40635 405mm modules, this module is the current 405mm maximum optical power module, the 405mm module has a very good grayscale outcome. If you are just for a simple engraving, N30610 or B30635 will perfect match for you.

【100% Satisfaction】NEJE factory are proud to provide the process of 48-hour temperature control for aging test to ensure the quality of each module and guaranteed 2 years (20,000 hours) free warranty.

The Difference Between Neje Laser Module and other modules!Evanator (2021.6.16)

2 years warranty: The NEJE module currently adopts advanced gluing technology, ensuring that each laser module can control the temperature control in a safe range, and the Neje plant is the only factory that is a modular temperature test, while other temperature sensors The module is unable to dissipate reliability;

Laser Power: Recent neje saw the label on the market and even the label 80W and 40W modules. NEJE clearly tells the laser engraving customers, Atomstack and other so-called 40W is actually single laser diode, and Neje A40640 is 2 laser diodes, actual The power is only half power of the Neje A40640 module, and the actual use effect is not different from the NEE N40630 and N30820 modules;

Safe Current: Safety current is the bottom line of laser life. Under the same technical conditions, neje insists on safe laser current settings to ensure the life of laser diodes. NEJE believes that providing users with a reliable laser for long-term use is more short-lived Than Enhanced Current. The Super Power Experience Is Even More Important!

Square Spot: All NEJE modules are square or round after focusing. The main use of FAC technology is to reduce the divergence angle of the laser beam and the maximum cutting thickness. If you have higher requirements for cutting thickness or efficiency, Within 18mm, A40640 module or A30830 , A40630 Are Your better choices; if you cutting Needs area for 8mm, N30820, N40630 Are Perfect Choices

Quiet: Neje uses a built-in intelligent drive design, the built-in program can recognize temperature, control and other signals, dynamically adjust the fan speed and user feedback, and use it more quietly and safely;

Electrostatic voltage surge protection: NEJE module has built-in electrostatic and voltage surge protection to ensure the reliability of the module.

So NEJE has 2 years of free warranty. Since NEJE has been established in 2013, it has served a worldwide of 1 million consumption, and the module produced by other small factory cannot provide quality assurance. NEJE hopes to provide users with more transparent product purchase, help Users find a product that guarantees and affordable.

NEJE MAX problem with lightburn Evanator (2021.5.21)

Regarding the problem of max machine interruption in lightburn mode; among the 100 machines in March, some of them may have unstable factors. NEJE please contact customer service email,, if you encounter this problem, Initially, it can be solved by updating the firmware. If it cannot be solved, NEJE will send you a new motherboard for free. NEJE is very sorry for the inconvenience caused to you! This problem is due to unstable factors caused by the shortage of chips. NEJE is committed to providing better services!

NEJE Laser Module PWM signal specification Evanator (2021.3.16)

You may be wondering what PWM model should be entered for the laser module is the correct one. This article will answer your doubts.

Please download the following file:


How to choose professional laser equipment for engraving, cutting and drawing (2020.11.28)

When you are looking for an engraving machine, we recommend that you consider your needs: cutting, drawing, engraving?

Cheap laser engraving machine and cutting machine?

Many users only pay attention to laser power and area, as well as price and video when purchasing products. However, they often buy unsatisfactory products. Currently, more than 90% of engraving machines on the market are products developed based on GRBL open source solutions. Many companies avoid the development process and use grbl directly for laser control. Since there is no need to develop a control system, it can bring very low costs. Although GRBL is a well-known control system, it has many disadvantages in controlling lasers. Laser control is difficult, it takes a lot of time to learn professional g-code knowledge and grbl software, and it takes more money to buy professional software, such as lightburn software; the acrylic structure is easy to damage during transportation and use, and it is easily damaged during transportation and use. It is easy to deform with the passage of time, resulting in poor mechanical accuracy and short life. They use cheap second-hand laser lasers, which are exposed and easy to assemble, without reliable cooling systems, process standards, professional knowledge and technology; more importantly, after-sales accessories support and warranty;

Is a larger area better?

In fact, you need to consider your actual use. If your application is based on engraving, I suggest purchasing a design with a lighter module, such as the master 2 mini. This design structure can scan faster than the master 2/ 2s or plus is twice the speed, because the weight of the module is light, so the maximum mechanical performance can be maximized and the jitter is smaller. If you want better engraving speed and cutting function, I recommend the master 2/2s 20W version. The module weight design and module power have a good balance. The gantry structure is more suitable for cutting, with a large area, but the engraving speed Because the module is relatively heavy, it cannot be adjusted too fast. If the speed is adjusted too fast, exceeding the maximum limit that the machine can actually accept, it will cause severe jitter. The neje series of products, from master 2 mini, master 2/2s, plus, mix, max, is a balanced transition from engraving to cutting performance. You need to consider your own application requirements, and choose lightweight ones for fast speed. Don't believe in the performance of the so-called 32-bit control chip. The only performance that can be improved by 32-bit is the moving speed. The cutting speed is determined by the laser power, and the engraving speed is determined by the weight of the module. Although NEJE has all been updated to the 2s version, that is, the 32-bit controller, and 100% adapts to the lightburn software, including the reset function.

About NEJE Master laser engraving machine, cutting machine!

NEJE Master machine is a full-featured engraving, engraving and cutting machine. It has comprehensive crafts and functions, and is very portable for desktop use. NEJE develops optical laser modules with different functions. Each module has an innovative design. , High reliability, can bring different process effects.

In the key structure, we canceled the acrylic structure and used CNC composite materials to improve mechanical accuracy and durability;

The laser uses the key diode cap technology, passed the standard process and aging test, to ensure that you can use it for a long time without failure, and the service life is 10,000-20000 hours.

The control system NEJE uses a dual MCU architecture to support NEJE's own development and continuously updated control system and GRBL control system. The NEJE control system is characterized by simple operation, safe use, and can provide professional engraving results for beginners. It has carried out many process optimizations specifically for laser control, and continuously created new usage methods, such as NEJE scanner, cloud database, and support MEMS roll protection, GRBL control system is a g-code control system for professional players, more professional, you need to learn laserGRBL or lightburn software to control.

Based on NEJE control software, the NEJE laboratory team continues to develop technology and software algorithm technology for laser processing, bringing more value to users.

-Speed about “Fast” and “Slow” modeEvanator (2020.11.15)

Hello, fast mode and slow mode are to solve the problem of module weight. The 20W module weighs more than 200 grams. Although it is already very light in similar modules, it is recommended to use a slow module with this module, but If it is a 7W module, because this module is relatively light and will not cause shaking, a fast module is recommended. The choice of mode is determined by the weight of the module. Neje has optimized the motor accelerometer to the greatest extent. If you have requirements for speed, it is recommended to use the neje master 2 mini machine, which is twice the speed of the neje master 2, because this machine The mounted module is very light and can be scanned quickly without shaking.

Is the recent version of the Neje master 2 plus 100% compatible with Lightburn software?

Currently master 2, 2s, master 2 / 2s plus, master 2s mix, master 2 / 2s max are 100% compatible with lightburn, and the 2s version is 32-bit, and the performance is 50% higher than stm32;

Can you tell us when the 32bit board may be coming out? I have read it doesn't increase speed much, but it would make pictures come out better. Like better detail and better shading. I would like to see a video of the 30w module engraving a portrait or something in the future :) I really want a master 2 Evanator (2020.11.5)

I am glad to discuss this issue with you. At present, the amtel motherboard can control 255 laser power levels. The 32-bit chip can theoretically subdivide more levels, but in fact, 255 laser power levels and 1000 power levels have almost no engraving performance. The difference is that the laser current and power are not absolutely linear. Under this resolution, the engraving effect is no different. Please don’t be misled by the so-called 1000 resolution. If you pursue better details and grayscale, you need to pay attention to the module. Wavelength, optical design, mechanical accuracy and movement speed, master 2 mini, 405nm laser can bring better grayscale and detail, because the absorption efficiency of 405nm wavelength can present better details. Neje will update the 2s version of the motherboard, and the master series will be updated. Customers who bought before, please don’t be disappointed. NEJE pursues engraving and cutting quality and does not have hardware performance. However, under pressure, it will also upgrade the control chip, but please believe, master The 2 series has the most perfect carving quality.

Are the 30W and 40W compatible with the NEJE Master 2?

Support, but need to install a sliding slot slider.

Laser power controlled by 255 or S1000 steps?

In the benbox control mode, the laser power is 0-L255, which means the power is 0-100%; in the GRBL1.1f control mode, the laser power is S0-S1000, which means the power is 0-100%.

About STM32 and atmel chips? (2020.10.31)

Regarding the 32-bit stm32 and atmel chips, atmel is the original grbl dedicated chip. The stm32 chip can increase the main frequency and can indeed increase the movement speed of the machine, but there is no increase in cutting speed and engraving speed! why?

Compared with atmel, the actual increase in cutting speed and engraving speed is not obvious. , Because the cutting speed is determined by the laser power, the engraving speed is determined by the weight of the module and the sliding module. The performance of atmel is completely sufficient!

So, don’t worry about your atmel performance is not strong enough.

Later we will upgrade this chip on all master machines. The chip performance is 50% stronger than stm32. The improvement that can be brought to the current machine is the increase in motion speed. Motherboard interface is compatible with existing machines.

20W laser fan stop working? (2020.9.2)

Note: For the New NEJE 20W laser module, the working status of the fan is determined by the temperature of the module, and the fan speed is dynamically adjusted according to temperature changes. When the machine stops working, the fan will stop working when the laser temperature drops.

LightBurn Software (2020.7.13)

NEJE Master2 supports LightBurn software with firmware GRBL1.1F.

LightBurn is a paid software. You can download it from the official website of Lightburn. This software is not developed by the NEJE team. You can use it for free for 30 days.

LightBurn is layout, editing, and control software for your laser cutter. With LightBurn you can:

- Import artwork in a variety of common vector graphic and image formats (including AI, PDF, SVG, DXF, PLT, PNG, JPG, GIF, BMP)

- Arrange, edit, and even create new vector shapes within the editor, with powerful features like offsetting, boolean operations, welding, and node editing

- Apply settings like power, speed, number of passes, cut order, brightness & contrast, dithering mode, and much more

- Send the result directly to your laser cutter

LightBurn is a native application written for Windows, macOS, and Linux.

The laser module power is not the higher the better(2019.12.30)

The NEJE laser module is developed according to the actual process requirements. When you choose a laser, it is not necessary to use more power. For example, the NEJE 405nm 3500 module has a high power of 405nm and a very small focus. The short wavelength of 405nm is easier to Material absorption, all effects and precision are the highest. Its process features are high-precision engraving, gray-scale engraving and high-precision drawing images. The disadvantage is the average speed; 7W modules are good at high speed because of their light weight, small focal length, small focal point, and high power. Deep engraving, suitable for engraving logos and patterns; 20W module has a small focal point and high power, but is relatively heavy. It is good at slow depth engraving and cutting wood and paper pieces less than 5mm thick; you need to consider this according to your actual needs Several modules.

About NEJE Master Mechanical. (2019.12.30)

The actual mechanical area of the NEJE Master engraving machine is 170mm * 170mm. Software will be upgraded later to adapt.

NEJE machinery uses composite materials and CNC technology, the pads are designed with silicone, and the 4 feet have fixed hole design, which guarantees accuracy and stability. The technology of other manufacturers' acrylic materials is laser cutting, the accuracy is poor, and over time, the acrylic will bend and deform, and the accuracy of the machine becomes worse and worse.

NEJE 12V LaserModule Tester.(2019.12.30)

NEJE 12V LaserModule Tester V1.0 will be released. It can display the laser working temperature, you can set the PWM signal manually, you can receive 2Pin 3.3-12v TTL signal and display the PWM.

Important Notice(2019.12.29)

Users who purchased (NEJE 20W module) before October 2019 may experience laser attenuation. If your laser power is attenuated, we will replace it for free. We apologize for the inconvenience!

At present, all laser modules of NEJE will pass rigorous aging tests to ensure no attenuation of power and ensure that each radiator can control the temperature within the standard range for a long time. It can be used continuously without any time restrictions. The cheap lasers bought in the market do not have diode caps. NEJE has key core technology to control the effective life of the laser diode to 10,000-20000 hours, and promises a 2 year warranty! If your laser have problems, You can get it for free from the store you purchased, or contact the official service

The 20W lens has been updated. You don’t need to purchase lens to replace it. The new lens can adapt to engraving and cutting at the same time. The cutting light diameter can be controlled within 0.1mm and 5mm length.

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