COMGROW COMGO Z1 LaserGRBL User manual

User Manual V1.1
COMGO Z1 LaserGRBL Beginner's Guide

Introduction Catalogs
Paramenters
Disclaimer
Install LaserGRBL
Connect COMGO Z1 Laser Engraver
Reset
Import Images
Setting parameters
Start engraving
Engraving Parameters
Introduction of LaserGRBL
Troubleshooting
Dear Customers,
Thank you for choosing the COMGO Z1 Laser Engraver!
The COMGO Z1 Laser Engraver is a desktop laser engraver.
Before operating the COMGO Z1 Laser.Engraver, please read
the manual carefully and follow the instructions for assembly
and operation. If this manual does not effectively solve your
problem, please contact our support team.
Comgrow was founded in 2017 by people who have a serious
passion for technology that helps you make things. With this
deep-rooted dedication, we wanted to make the digital
manufacturing pro-cess more accessible, giving educators,
engineers, manufacturers, small businesses and tinkerers the
power to make anything.Headquartered in Southern Chi-
na,Shenzhen, Comgrows' dedicated staff is committed to
providing the kind of service that makes you go "wow."
Our amazing gals and guys in customer service are here
Monday through Saturday to help with anything you may
need, from finding the right material to package your specific
product, to discussing which printer is best for you.Bottom line
is, we're here to make 3D printing, laser cutting, and CNC
milling magic happen.Contact us.
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Paramenters
Machine Size
Working Area
Frame Material
Stepper Motor
Laser module type
Wavelength
Compatible Software
Compatible System
Input Voltage
Laser Power
Focal Length
S-value Range
Connection Method
Engraving Accuracy
Machine Weight
575*575*205mm/22.64*22.64*8.07inch
How to level the focus
400*400mm/15.75*15.75 inch
5.0 KG/11lbs
Aluminum
42mm*42mm*34mm
Diode lasers
445nm
LaserGRBL ：Windows XP 、Windows7、
Windows8、Windows10
Lightburn：Windows、Mac OS and Linux
Laser GRBL 、Lightburn
AC110V-230V
1.6W/5W/10W
1.6W:30-100mm 5W:23mm 10W:45mm
S0-S1000（0%-100%）
USB
0.1mm
NOTE: The focal length is the distance from the lower face of the laser module profile to the engraving plane.
10W 5W
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Disclaimer
COMGO Z1 Laser Engraver supports the most popular engraving software LaserGRBL.
LaserGRBL is an open source, easy to use and powerful software, but LaserGRBL only sup-ports Windows (Win XP/Win 7/
Win 8/XP/ Win 10).
Obtain and install LightBurn
The COMGO Z1 Laser Engraver receives mobile commands from the computer in real time, and the engraver needs to stay
connected to the computer and cannot close the engraving software (LaserGRBL or LightBurn) during the engraving pro-
cess. In addition, the configura-tion of the computer can affect the speed and even the quality of the engraving. The
following will focus on the installation and use of LaserGRBL software.
Note: It is recommended that you adjust your computer's power settings to "Never Sleep" mode.
Please read the following carefully before using LaserGRBL on the Comgrow Z1
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Install LaserGRBL
Section 1. Download LaserGRBL software（Only apply to Windows system）
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1. Open the file with the machine or from the
LaserGRBL website（LaserGRBL website:
http://lasergrbl.com/download/.）to download
software installation packages. 2. Double click “Install”.
4. Create a desktop icon.
Choose “Next” to continue. 5. Complete setup.
3. Choose the installation path, Default path（
C:\Program Files\LightBurn) .
Choose “Next” to continue

a. Generally, COM
ports don’t need to be
selected manually. But
if you have more than
one serial devices
connected to the
computer, you need to
select it manually. You
can find the port of the
laser engraver to
create in the Device
Manager of Windows
system.
b. If the COM port doesn’t show on the interface, please check whether the
driver is installed and please install the CH340 driver.
1. Connect the COMGO Z1 laser engraver to a computer with LaserGBRL software and plug in the power supply.
2. Open LaserGRBL software and select the correct port number and baud rate: software-115200
Connect COMGO Z1 Laser Engraver
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Tip: One computer can open several LightGRBL softwares to connect
several engraving machines. When you operate several engraving
machines, please make sure to confirm whether the COM port information
corresponds to the device you are using.

Reset
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1：the connect button
2：Prompt for firmware version number after the connection
3：the reset button

Import images
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1. Open File and add the image to be engraved Adjust the brightness and contrast of the
picture according to the set mode; (if you
wanna use the cut mode, please select
vector image and no fill)
Set up conversion tools (e.g. grayscale
mode, dot matrix mode, vector graphics,
etc.)
The higher the quality of the picture, the
better the engraving effect will be；
2. Set engraving parameters
(please see the next page
for details)
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Setting parameters 1
1. Please carefully set the engraving parameters
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LaserGRBL can adjust the brightness, contrast, and other attributes
of the target image. When the parameters are adjusted, you can
see the actual effect in the preview window on the right and can
try to adjust it to what you think is satisfactory.
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The engraving mode is usually selected as "progressive tracking"
and "1bit jitter". 1-bit jitter is more suitable for engraving grayscale
images. If you want to cut, please select vector or centerline
engraving mode and choose no fill.
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Engraving quality essentially refers to the line width of the laser
scan. This parameter depends primarily on the size of the laser
spot of the engraver. The Z1 engraver applies a square spot of
.08mm. Therefore, the recommended engraving quality range is
8-20 (commonly 12).
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At the bottom of the preview window, you can also rotate, mirror,
and cut the image.
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After completing the above settings, click next to enter the
engraving speed, engraving energy, engraving speed to set the
size of the engraving
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Setting parameters 2
2. After completing the previous step of setting, then select the
carving speed, carving power, and the carving size (The carving
power can be set according to the recommended parameters)
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Tip: Please make sure the size
of the graphics you need to engrave
and cut does not exceed 400*400
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1：The engraving speed is recommended to use 100-5000.
This is the best value engraving after our repeated experi-
ments. Different materials correspond to different engrav-
ing speeds; Of course, you can increase or decrease this
speed preference according to your needs. A faster speed
will save engraving time, but a slower speed may bring
about the opposite effect of reduced engraving results.
2：In the laser mode selection, there are two commands
M3 and M4 for laser on. It is recommended to use the case
where the M4 command is recommended for engraving in
1bit jitter mode, and the M3 command is recommended for
other modes. If your laser only has M3 command, please
check if the laser mode configuration is turned on in GRBL.
For the description of GRBL configuration, please refer to the
official description of LaserGRBL.
3:The choice of engraving energy depends on the different
materials. We have attached the common material
parameters at the end of the engraving and cutting
manual for reference; you can also select our product
model as shown in Figure 3, choose engraving or cutting,
and in selecting the material, the system will provide us
with the default parameters.
4: Finally set the size to be engraved, click the "Create"
button to complete all the settings of the engraving
parameters

Start engraving 1
Manually move the laser head of the machine to the engraving position, click the reset button, then click the unlock button.
When the green button appears, please click to start engraving
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3. When the green button appears, click it to start engraving
2. Then, click the Unlock button
1. Click the Reset button

Start engraving 2
Start engraving and control
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3. The laser energy adjustment, line width adjustment and speed adjustment during the engraving process
are shown in the picture
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1. Click to start engraving, please ill in the box with the number of
repeat engravings
2. Emergency stop: Priority recommended to use the reset button. If you
wanna continue engraving, please click the reset button, unlock button and
then the start button to start again. Or you can also choose to start from the
stop position (When it stops during carving, it is better not to change the
position of the carving machine )

Engraving Parameters
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Engraving Parameters
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Introduction of LaserGRBL
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Reset button：You can click the reset button when need to pause the engraving or when there is an abnormal
situation.
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Return button: Click the button, the X, Y-axis will run to the mechanical origin. It is recommended that when in
large size carving, you could click the button to return to zero before the engraving.
Unlock button: After resetting, you need to click
the unlock button；
Origin button: When the button is clicked, the
current position is taken as the origin.
Preview button: When the button is clicked, the X and Y axes will be moved to the maximum square size of the
engraving pattern.
Unlock button: After resetting, you need to click
the unlock button；
Origin button: When the button is clicked, the
current position is taken as the origin.
Open Light button: Click the button and the laser will open. If there is no light, please select the light button,
right-click the edit button and adjust the power F value
Lines: The total number of lines of G code. The more
lines, the longer the engraving time will be；

Troubleshooting
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1：The product can’t connect to GRBL；
Solutions:
1: Confirm whether the driver (CH340) has been installed,and reinstall the driver;successful installation, USB connection prod-
ucts in GRBL is displayed COM port, 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 it is the first time to install GRBL software, the above operations are unable to connect or disconnect immediately after
connection, you can use Lightburn software to connect with check the product firmware version number, if it is COMGO V1.0, you
only need to refresh the firmware (we recommend updating our latest firmware)https://drive.google.com/drive/folders/1YP-
jvHf4-4DqBkkCXpYm6Bc9hpi_QqQI1?usp=sharing;
4: If, during use, you find that Lightburn/GRBL and other software cannot be connected under normal operation, replace the
USB cable；
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Troubleshooting
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2：When grayscale engraving and the zero return engraving is used as the starting point, the X-axis
keeps hitting the edge of the product after a period of normal engraving
Solutions:
1：Please check whether the setting size of the engraving image is more than
400*400；
2:：Enter $$ and check whether it is $20=1. If not, then modify $20=1 to start
the soft limit switch, which can prevent the carving range from exceeding
400 when set by human or other abnormal conditions；
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3：If the machine does not move during the engraving process；
Solutions:
1：Please check whether GRBL is connected to the machine；
2：Please check whether the product power supply has power supply, check the red indicator；
3：If there are no problem with the above operations, please check whether there is a red alarm in the
lower right corner of GRBL software. If so, it means the gyro alarm has been triggered, please enter $$ value
to check $140 value. It is recommended to set it to 16 after clicking the start button to lift the alarm.
4：If none of the above operations reveal a problem, check whether the progress meter triggers a soft limit.
If so, please click the reset button, the unlock button and click start engraving.