Introduce This article only applies to digital type lasers This article is of little help to most people. If you are not a geek, you can close this page. If you want to read the temperature from your module, if you have a NEJE control board, you can easily obtain the laser module temperature in […]
How to Read Temperature From Laser Module? Read More »
当你完成一个切割作品或者完成一个雕刻作品，如果有以下现象发生，请考虑失焦 什么是失焦？ 激光模组有重量，如果你的激光模组比较重，激光器移动到设备的右边时高度将会下降一点，那么，激光模组在右边的时候将会比在左边的时候更加接近雕刻物体，又因为激光在对焦后焦距不会变化，这会引起失焦，导致会在一端工作完美，但是另一端工作不完美，一般来说，这个在NEJE 2/2S/Plus设备上比较常见，对于Max和Pro设备，一般不会有这个问题的困扰。 如何测量这个问题？ 使用控制电机的指令，移动您的激光模组到您工作范围的4个角落，尝试使用尺子测量激光模组到工作台面的距离，如果4个角落的距离高度不一样，这需要引起您的注意，您的设备可能需要修复。 如何解决这个问题？
Beware of Loss of Focus at Work Read More »
What is focus light? We all know that focus needs to be done before the device starts to work, the focus light brightness is for you to set the laser to a very low brightness while the device is focusing, this will help you focus Why to change focus light? The focus brightness is achieved
How to Set Focus Light? Read More »
This article will help you determine whether your laser has failed and where it has failed. This page is only applicable to the digital version laser module. How to distinguish? For Laser Module with Adapter Please do as follow: Normally: In step 1, the red LED on the adapter board will light up. After connecting
Troubleshooting of NEJE Laser Module Read More »
If your A40640 is damaged and similar to the figure below, we provide a repair method: Note: This fix applies only to N40640 v1.2 and v1.3 laser drives, You can find the driver version number on the other side of the driver board. Please note that when disassembling your laser, please remove the four screws
How to fix my A40640 this issue? Read More »
Check out what you got : How to change control board for laser module? First, disassemble your laser drive and heat up your iron(may take 3 minutes) Add enough solder to make all 4 pins have solder, as shown in the figure below: Heat the four points at the same time, and gently lift the
How to Change Control Board of N40630/A40640 Read More »
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 /
About PWM Signal Specification Read More »
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
How to Use Laser Module Read More »
First: distinguish your laser type by distinguish my laser module types For analog type laser module: For digital type laser module:
How to Test My Laser Module Read More »
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 Distinguish My Laser Module Type Read More »