COMGROW COMGO Z1 Laser Engraver Small Engraving DIY Machines User Manual

COMGROW COMGO Z1 Laser Engraver Small Engraving DIY Machines User Manual

GRBL software suddenly stops during the carving process

1. Check whether GRBL and the product are connected:

2. Check whether the product power supply is powered and check the red indicator；

3. Under the normal condition of the above operation, check whether there is a red alarm in the lower right corner of GRBL software. If yes, it means that the gyroscope alarm has been triggered. Enter the $$ value to check the $140 value, it is recommended to set it to 16 and then click the start button to lift it;
   

4. If no problem is found in any of the above operations, please check whether the progress meter triggers the soft limit. If so, click the reset button, the unlock button and click start carving
   

GRBL can not connect to the product

1. Confirm whether the driver (CH340) has been installed on the computer side, and reinstall the driver; If the installation is successful, the USB connection to the product is displayed in the COM port in GRBL, and you can also choose other ports to try to connect. As shown in the figure:
   

2. Confirm whether the baud rate in the setting parameter is 115200;
   

3. If you are installing GRBL software for the first time and the above operations are unable to connect or disconnect immediately after connection, you can use Lightburn software to connect with to check the product firmware version number. If it is COMGO V1.0, you only need to refresh the firmware (it is recommended to update our latest firmware);

https://drive.google.com/drive/folders/1YPjvHf4-4DqBkkCXpYm6Bc9hpi_QqQI1?usp=sharing;

4. If you find that Lightburn/GRBL and other software cannot be connected under normal operation during use, replace the USB cable.

During GRBL engraving, the X-axis always hits the side

1. Check whether the setting size of the engraved picture exceeds 400*400;
2. Input “$$”, check whether it is “$20=1”. If not, modify “$20=1” and start the soft limit switch. It can prevent the engraving range from exceeding 400 under artificial settings or other abnormal conditions.
   

The machine moves normally, but the laser does not light

1. Check whether the wire is loose (fork the power line of the laser head), or loosen the PWM line separately to check whether the laser head emits light normally;
2. Please unplug the laser connecting wire, turn on LaserGRBL, adjust the laser brightness to the maximum, and then measure the voltage of “POWER” and “PWM” wire respectively. If both “POWER” and “PWM” have voltage, there is a problem with the laser module.

Engraving or cutting does not achieve the desired effect

1. Check whether the laser focal length is correctly adjusted. 5W laser focal length is 23mm and 10W laser focal length is 45mm;
   

2. We recommend that you refer to the recommended engraving parameters in the manual for setting;

3. If the laser lens is obscured by foreign objects, we recommend you to clean the lens regularly;

4. Confirm whether the software settings are wrong (for Lightburn);
   

5. When it is cutting, we recommend that the cutting materials do not have a lot of deformation. If there is, we recommend that you first press together flat after cutting;

6. The cutting speed is not recommended to be lower than 120mm. If it is for thicker materials, we suggest you to cut twice or more times in a separate way. If the speed is too slow, it will easily lead to serious burning around the cutting edge of the board.

Lightburn can not be connected

1. Confirm whether the driver (CH340) has been installed (the driver file can check the random file in the SD card). If you reinstall the driver installed successfully, USB connected products are shown with COM port in GRBL. You can also choose other ports to try to connect. As shown in the figure:
   

2. Confirm whether the baud rate in the setting parameter is 115200;
   

3. Delete the setup parameters in the device list and reset the connection parameters

When Lightburn clicks to start engraving, an alarm problem appears

immediately

1. Open the cutting setting editor to see if the “overscan” button is turned on. (After the product is turned on, due to communication problems, the product needs to be reset to contact the alarm. After clicking the “reset”, the X/Y axis of the product will move to the home position. If the “overscan” button is turned on, the X axis will perform a -2.5mm movement. Thus the alarm will be triggered when the machine is turned on.) Turning off the “overscan” button will have no effect on the engraving effect;
   

2. If you need to set (super scan) when engraving, move the X-axis to a certain distance from the limit switch and then click the “set home” button to start engraving

Lightburn suddenly stops during engraving

1. Check whether Lightburn is connected to the product;
2. Check whether the product power supply is powered and check the red indicator;
3. The normal condition of the above operation means that the gyro alarm has been triggered, enter the “$$ value” to check the “$140 value”. We suggest you to set it to 16 and then click the “start” button.

How to set Lightburn so that the product does not need to return Q9 to

zero after power on?

1. Right-click (macro button) and enter “$X”. To disarm the alarm, simply click this macro button
   

The requirements of the machine for the computer and the Q10 software

download links

1. LaserGRBL and Lightburn are currently supported. LaserGRBL is available for Windows and is less difficult to use, you can get the software installation package from the SD card; Lightburn is a paid software, but if you are a first-time user, you will get a free month of use. The software is available for Windows, Mac OS and Linux, and you can get the software installation package from the following link:
   LaserGRBL software can be downloaded from http://lasergrbl.com/download/; Lightburn software can be downloaded at
   https://lightburnsoftware.com/pages/trial-version-try-before-you-buy

Laser engraving graphics deformation

1. Not tightening the belt leading to slippage;
2. The motor timing wheel is not tightened leading to slippage;
3. If the belt or timing pulley is defective, please replace the belt.

The laser does not stop moving after hitting the limit switch

1. If the connection is poor, try again after rewiring;
2. Remove the main board cover, change the position of X-axis limit line and Y-axis limit line, and then click the mechanical return to zero. If the impacted position changes, the main board is damaged; If the shaft is still impacted, it is likely that the limit switch is damaged.

Noise in the working process

1. Check whether the noise is made by the structure or the motor. If it is the noise of the motor, we suggest you to change the X Y motor line to see if it is a motor problem;
2. Check whether the screws on both sides of the X-axis are fixed tight;
3. Whether the slider of the axis and Y-axis has a laminated profile (if not, adjust the eccentric nut to make it laminated)?

What the SD card slot on the main board is used for?

1. There is an SD card slot reserved on the motherboard, which is mainly used to update the machine firmware. For the latest firmware, please visit the official website of Comgrow;
2. When the product uses the APP, it must be necessary to put the SD into the card slot; Store the engraving instructions issued by app through SD card.

Whether the machine needs maintenance?

1. For the laser module, its normal service life is more than 10000H. Of course, the use environment will also have a certain impact on the service life and engraving ability. When the laser module lens is found to be scorched yellow or the lens is blurred, it needs to be properly cleaned;
2. Regularly check the fit tightness of the pulley and the profile;
3. Regularly check whether the belt is notched. In the installation or other processes, do not bend the belt. The belt is equipped with steel wire, bending is likely to lead to wire fracture.

Whether engraving can be done on metal surfaces?

For stainless steel, laser engraving can be done directly on its surface. For specific engraving parameters, please refer to the table of recommended engraving parameters; For other metals, such as iron, aluminum and copper, they cannot be carved directly. They can be carved only after a layer of coating is attached to the surface of the material.

Whether metal can be engraved?

For a low- power laser with a wavelength of 450nm, metal can not be cut.

The service life of the laser module

1. The normal service life of the laser module is 10000 hours. In the actual test, the optical power will decay after using 8000 hours. There will be a certain impact on the cutting, so we recommend that the laser head needs to be replaced after using 10000 hours;
2. Regularly maintain the laser head and clean the stains on the surface lens/enclosure.

How to ensure that the laser engraving pattern is within the envisaged

range?

Please execute the preview command before engraving, it will move at the boundary of the engraving area in the form of weak light. If this boundary is beyond your engraving range, you can move the object or move the laser position to adjust it.

Can the engraving machine be used on ipad?

It can’t be used on iPads and mobile phones. You need to use a computer.

How to adjust the belt tightness?

Yes, in the case of engraving glass or ceramics, it is better to engrave the glass/ceramics with black or tinted paper on the surface, so that the engraving text will be more clear.

Is it possible to engrave coating layers?

Yes, for the spray layer, the carving speed must be fast. If it is the grayscale picture, we suggest you to use the Lightburn software to carve. GRBL will be much slower for grayscale engraving, so the engraving will not be good.

Under what circumstances do we need to upgrade the firm- ware?

1. GOMGO version 1.0, which is the earliest general firmware with the most basic functional parameters;
2. GOMGO version 1.1, compared to 1.0, this version of the firmware mainly optimizes the software serial connection and other issues;
3. GOMGO version 2.0, which enables the use of APP functions, optimizes the underlying algorithm logic and improves the carving speed. It is the latest version of firmware.

Firmware installation package:
https://drive.google.com/drive/folders/1YPjvHf4-4DqBkkCXpYm6Bc9hpi_QqQI1?usp=sharing

Which cell phone models are compatible with APP?

1. Adapt to systems above IOS 10;
2. Adapt to Android 9 system or above;
3. For Hongmeng system (Huawei) and Miu system (Xiaomi), there may be no connection or data lag.

How to download APP?

1. IOS system: please search “Mini Laser Engraver” in APP Store;
2. Android users can search for “Mini laser engraver” in Samsung App Market and Google Play or directly scan the QR code below to download
   

What should we do if the APP cannot be connected?

1. Confirm whether the WIFI module is installed. Watch the motherboard (green indicator), if the green indicator is not lit, this means that the WIFI module is not installed;

2. Connect GRBL through the USB port and check if the current product firmware version number is COMGO 2.0;

3. When connecting to WIFI, the product needs to be disconnected from the PC segment software disconnection. Otherwise it cannot be connected;

4. Click WIFI search in the mobile phone settings to see if there is a COMGO Laser WIFI name, if so, click Connect.If so, click “connect”.
   

Can the cell phone access the Internet after the APP WIFI connection?

After the mobile phone is connected to the product’s WIFI, the mobile phone is not able to access the Internet.

Is the speed of uploading pictures by mobile APP fast?

Compared to the Bluetooth way, WIFI transmission rate and stability will be better. At present, our product’s engraving function is equipped with black and white/grayscale/cutting and other module functions. In comparison, image processing in grayscale mode will produce a much more G-code than in black and white, so the transmission time in grayscale mode will be longer.

Will it affect our life if the cell phone can’t access the internet

during the carving process?

In the actual use of the process, when we are operating APP, this time will be relatively short. When we finished sending the carving pattern, our cell phone is able to disconnect APP connection, and the engraving machine can also be carving normally

Can you engrave on a 3D object, such as a glass?

Yes, it needs to be used with rotary engraving components. Just connect the Y-axis motor line to the rotary engraving assembly motor (note that the Y-axis motor cables on both sides of Z1 need to be removed, not just one), and set “$101=65” at the same time. When the engraving is finished, you need to set “$101=80”.

References

• Download – LaserGRBL

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