How to Work with LaserGRBL
First: Prepare your device Second: Download LaserGRBL and run program. How to load nc file? File -> Open File -> (Your File) -> Start(Green button) FAQ: Connection failed. Check list:
How to Work with LightBurn
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What is My Device Mode?
For NEJE 2 series and NEJE 2S series How to switch mode? For NEJE 3 and NEJE 4 series
NEJE Control Software for Windows
NEJE Software NEJE Software is a free control software for NEJE users. It works with NEJE devices, supports USB and Bluetooth connections, and has an easy-to-use graphical interface, bringing users an incredibly smooth laser engraving and cutting experience. Download NEJE Software (Windows) Download software for NEJE 1/2/2S series devicesDownload old software pack (v4.3.0 ~ v5.6.4)Download …
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About PWM Signal Specification
什么是PWM? Click here to learn What is PWM 我不是专业人士，可以用一种简单的方式告诉我什么是PWM吗？ 首先，你需要知道，在TTL引脚输入直流0~2V电压会让激光器完全关闭，输入直流2.5V电压会让激光器全功率工作，输入直流5V也会让激光全功率工作，输入直流12V也会让激光全功率工作。 那么TTL上电压高低对输出功率有影响吗？ 没有，输入TTL的电压只会决定激光驱动器开启和关闭，0~2V是完全关闭，2.5V~12V完全开启，没有中间态，要么是完全开启，要么是完全关闭。 那么怎么做到50%功率输出呢？ 例子：用5V输入到TTL 1毫秒，然后用0V输入到TTL 1毫秒，循环往复，一秒会重复 1000 / (1+1) = 500次。 一秒重复500次？这能办到吗？ 人工操作不可能，但是使用微控制器可以很轻松办到，使用微控制器可以做到20000次每秒甚至更多。 你会看见激光闪烁吗？ 不会，人眼对30Hz以下的闪烁敏感，你看不到500Hz的闪烁，就感觉激光模组在持续输出功率一样（但是功率减半） 如何计算输出功率呢？ 在上面的例子中：ON Time / (ON Time + OFF Time) = 1 / (1 + 1 ) = 50% 如何改变输出功率呢？ 尝试改变输入5V的时间与输入0V时间的比值，功率输出 = 输入5V时间 / （输入5V时间+输入0V时间） 上面例子的PWM参数是？ 参数？这可能有点枯燥，但是不难，了解了之后会对我们接下在的学习提供帮助。 频率(f) = 1000毫秒 / …
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How to Use Laser Module
NEJE has a variety of laser modules, but the control methods are the same 12V: Power input GND: Power ground and signal ground(pwm ground) TTL/PWM: TTL = PWM, input 3.3V~12V to turn on laser module, connect to GND or not connect to turn off laser module Temperature: Communication interface. For DIY players, please ignore this …
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How to Test My Laser Module
First: distinguish your laser type by distinguish my laser module types For analog type laser module: For digital type laser module:
How to Distinguish My Laser Module Type
NEJE laser modules can be divided into three types: How to distinguish them? by power them up For analog type: For digital type: For new digital type:
How to Make Laser Module Work with Your Control Board
First: you need to know which pin is PWM output pin of your control board There are many kinds of control boards on the market. We can’t test each control board. Here is only a general method to confirm how to connect. The following methods may have errors. Please consult your control board vendor for …
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How to Test GRBL Stability
This page is for NEJE 2 series and NEJE 2S series and NEJE 3 series devices. rename note. Before start: For reliable test results, please flash GRBL firmware once before start, and keep the default GRBL setting. what is GRBL setting? How to Test: Go https://lasergrbl.com/Download and install the control software, or download LaserGRBL 4.4.1 …
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