COMGROW CNC User manual

User Manual V1.0
CNC
Carving Machine
13/F, Block 3, JinChengYuan, Tongsheng Community, Dalang, Longhua District, Shenzhen, China, 518109
E-mail: [e-mail]
Official Website：www.comgrow.com/
SHENZHEN Comgrow Technology Co., Ltd

Disclaimers 01
Welcome 02
Parameters
Unboxing 04
Assembly & Connection 05
Software & Driver 09
Off-line controler 14
Tool setting gauge block 19
Operation precautions and maintenance 20
Q&A 21
Catalog
1.COMGROW cannot verify and ensure that you are assembling the ROBO CNC correctly. We are not responsible for and expressly disclaim liability for loss,injury, damage
or expense associated with the assembly, handling, storage, use or other disposal of the product.
2. The information in this manual is provided without warranty of any kind, either expressed or implied.
3. Please be careful when using the CNC machine. This machine is an electrical device with moving parts and dangerous areas.
4. The ROBO CNC machine is for indoor use only.
5. You must be 18 years of age or older to operate this machine, unless under the supervision of an adult skilled in the use of this machine.
6. Please wear appropriate personal protective equipment (safety glasses, etc.).
7. Please place the CNC machine on a stable surface.
8.ROBO CNC machine provides switchable power supply 230 VAC or 110 VAC. It is forbidden to use different power supply, it may lead to machine malfunction or even
damage.
9. Please make sure that the emergency stop button is functional at all times.
10. Do not disassemble the power supply or electrical components. This will void the warranty.
11. Do not touch the machine spindle or place any body part near the work area while the machine is running.
12. Please do not allow children near the machine, as damage may occur even if the CNC machine is not working.
13. Please do not run the machine unattended.
14.Please make sure your CNC machine is in a well ventilated area. Some materials may emit fumes during operation.
Before operating the ROBO CNC, please read the instruction manual carefully. This is to avoid undesirable results that may damage the CNC
machine or cause personal injury. Anyone operating a CNC machine should know and understand the content of this manual.
Disclaimers
01
03

WELCOME TO COMGROW!
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 process more accessible, giving educators, engineers, manufacturers, small businesses and tinkerers the power to make anything.
Headquartered in Southern China,Shenzhen, Comgrows’ dedicated staff is committed to providing the kind of service that makes you go "wow." We offer the
highest quality materials, machines, and accessories - ranging from industrial-grade 3D printers to DIY laser cutters - all of which have been tested and approved by
our in-house experts. 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 newer. Bottom line is, we're here to make 3D printing, laser cutting, and CNC
(will release in May. 2021) milling magic happen.Contact us.
Thanks again for using our CNC engraving products, if you encounter any problems during the use, we will reply you at the first time.
Service Email: [e-mail]
For related installation files, please check: https://www.comgrow.com
Join our Facebook support group: https://www.facebook.com/groups/comgrow/
03
02
Product exterior size 400*275*268mm(motor not included)
Characteristics
Milling size 300*180*45mm
Weight 7.5KG
Drive motor 42 stepper motor，0.48 N.m.
Spindle 775 motor, 12V~24V,10000RPM
System Windows XP, Windows 7 32/64 bits,
Windows 8, Windows 10, Linux system.
Composed by aluminum, the overall structure is stable to
meet the needs of milling a wider range of materials;
available for engraving and cutting wood, plastic, acrylic,
PCB, soft aluminum and so on; unavailable for hard metals,
jade and other hard objects
Acrylic baffle prevents from dust and make it easier to clean up;
equipped with emergency stop button, stop milling with one press
Operating by GRBL software or offline control handle

Contents Assembly
0504
Y-axis base
Spindle motor
Wrenches
XZ-axis gantry
Spindle Tool holders offline control
handle
offline control
handle cable
USB cableSD CardClamps
BrusheMilling tool kit M5X12 Screw Hexagonal wrench
Protective baffle Plug 24V/5A Adapter
M5X10 T-nuts M5X10 Screws
+
M5X12 Screws
Wire Buckle

Spindle motor installation
After holding the collet open, slide down the spindle motor.
Note: Do not block the spindle fan outlet with the Z-axis chuck.
Make sure that at least 2/3 of the length of the Z-axis chuck is clamped to the motor.
M4X25 Screw
(Don’t lock the screw too tightly to avoid damage to the collet)
Wiring schematic
0706
Z-axis limit switch cable
The spindle red wire is connected to the port next
to the red dot mark on the motor
Y-axis limiswitch cable
Y-axis motor cable
Power/emergency stop
switch pair wiring

Mainboard Module Mainboard Module
1. Install the driver ( software →Driver →CH340SER.exe )
0908
Preview
pore
USB Port
Offline control
handle port
Laser spindle
switch
Functional
module
Z stepper Y stepper Z stepper PWM
signal
interface
PWM
power
supply
Two-wire
system laser
inerface
Adjusting
tool
Emergency
stop button
Z limit
switch
Y limit
switch
X limit
switch Fans
24V power input
Spindle MOS tube
mode power input
Spindle MOS tube
mode motor interface
Spindle relay
mode power input
Spindle relay
mode motor interface

2. To Determine your Machine's COM port: 3. Open Grblcontrol software(software →Grblcontrol →GrblControl.exe)
1110
Windows XP: Right click on "My Computer", select "Manage", select "Device Manager".
Windows 7: Click "Start" Right click "Computer" Select "Manage" Select "Device Manager" from left panel.
In the tree, expand "Ports (COM & LPT)"
Your machine will be the USB Serial Port (COMX), where the “X” represents the COM number, for example COM12.
If there are multiple USB serial ports, right click each one and check the manufacturer, the machine will be "CH340".
Click Service
Choose COMX port
Click OK，connect
Check connection display，if 'Not Connected' is displayed，connection fails，if 'Port Opened' is displayed, connection is done
Connection Display

Grblcontrol Use Operation
Please check to make sure the CNC machine is assembled and wired correctly first,
then start the machine test run.
1. Plug one end of the USB cable into the motherboard connector and the other one to the computer, then boot the computer.
2. Start the Candle program and verify in the status window that no errors are showing. Normally, it will show "Idle" if it has If an "Alarm" error is showing,
with your mouse, click the Candle "Reset" then "Unlock " buttons in that order to get to the "Idle" condition.
3. Connect the 24V/5A power adapter and turn on the controller board with the "O/I" button in white letters.
4.Next, click on the "Spindle" button to turn on the spindle motor. changes. Set "Feed:" to 500.
5.Click on the left set of direction buttons with the mouse to verify that the X and Y axes are moving properly. Similarly, click on the rightmost up and down buttons
to verify that the Z-axis moves properly. If all of these tests are completed properly, your CNC machine is assembled and wired correctly. Shutting down the
machine for use is done in the opposite way to the start-up process.
6. Turn off the controller board with the white letter "O/I" button.
7. Unplug the 24V/5A power adapter. Shut down the Candle program. Turn off the computer.
Translated with www.DeepL.com/Translator (free version)
1312
Coordinates movement
Control
XY \re zero
Z \re zero
spindle on/off
X Y Z operating button
Manual control of moving speed
Milling size
START/STOP button
We recommend following the boot sequence below

Offline Controller
Notice: If you want to run the CNC machine with an offline controller, you must first disconnect the
USB cable from the controller board.
1. Connect the memory card to the computer through a card reader, copy the G-code into the memory card, and then insert the memory card into the offline control handle.
2. Connect the offline controller to the control motherboard.
3. Press the [X+/X-/Y+/Y-/Z+/Z-] key to move the spindle to the machine origin, select the engraving file, click the [OK] key to start engraving.
4. Interface introduction
1514
OK Confirmation
BACK Return to previous page
RESET Reset system
X-/X+/Y-/Y+/Z-/Z+ Control X/Y/Z axise move
Move Confirmation
File Return to previous page
SSet Reset system
Press key [X-] or [X+] to select
Laser/SPN:100% Power to spindle
(press [Z+]=add,Press [Z-]=reduce)
A. Off-line controller button B. Menu PagAe
Press key [OK] to Enter
Press key [RESET] to reset system

C. Move Page D. File Page
1716
X+ X-axis positive direction
X- X-axis negative direction
Y+
Z+
Z-
OK
BACK
Y-axis positive direction
Y- Y-axis negative direction
Z-axis positive direction
Z-axis negative direction
Spindle On/Off
Long press to exit
Press key [Y+]or[Y-] to select file
Press key [OK] to Enter
Press key [OK] to Confirm cave
Press key [BACK] to pause or run
On first 2 pages, pressing and holding on the 'Back' button to return;
on the last page, tapping on the 'Back' button to return
X-
Y-
Y+
z+
z-
X+