VEVOR A7 5W User manual

Technical Support and E-WarrantyCertificate www.vevor.com/support
Laser Engraver
User Manual
F03-0175-0AA1 Version: A
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Laser Engraver
A7
5W A7 10W G3 20W
W
Have product questions? Need technical support? Please feel free to
contact us:[e-mail]
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This is the original instruction, please read all manual instructions
carefully before operating. VEVOR reserves a clear interpretationof our
user manual.The appearance of the product shall be subject to the
product you received. Please forgive us that we won't inform you again if
there are any technology or software updates on our product.

Symbol
Symbol description
Warning
-To reduce the risk of injury, user must read
instructionsmanualcarefully.
This symbol, placed before a safety comment, indicatesa
kind of precaution, warning, or danger. Ignoring this warning
may lead to an accident. To reduce the risk of injury,fire, or
electrocution,please always followthe recommendation
shown below.
Danger!
Risk of personal injury or environmental
damage!Riskof electric shock! Risk of personal injury by
electric shock!
Warning
-Be sure to wear eye protectors when using this
product
Indoor use only
Disposal information:
This product is subject to the provisionof European Directive
2012/19/EC. The symbolshowing a wheelie bin crossed
through indicates that the product requires separate refuse
collection in the European Union. This applies to the product
and all accessories marked with this symbol. Products
markedas such maynot be discarded with normaldomestic
waste, but must be taken to a collection point for recycling
electrical and electronic devices
FCC statement:
This device complieswith Part 15 of the
FCC Rules. Operation is subject to the followingtwo
conditions:(1)Thisdevice may not cause harmful
interference, and (2)thisdevice must accept any interference
received, including interference that may cause undesired
operation.

Before using the laser engraving machine, please read this safety guide
carefully. It contains information about situations that require special
attention, as well as warnings of unsafe practices that can cause damage
to your property or even endanger your personal safety.
1. The product belongs to Class 4 laser products, the laser system itselfmust
meet the requirements of IEC 60825-1 latest version,otherwise the product is
prohibitedfrom being used.
2. If a protective housing is equipped with an access panel that provides"walk-
in" access then:
a)Means shall be providedso that any person inside the protective housing can
preventactivationof a laser hazard that is equivalentto Class 3B or Class 4.
b）There is a warning deviceso as to provideadequate warning of emission of
laser radiationequivalentto Class 3R in the wavelengthrange below 400 nm
and above 700 nm, or of laser radiationequivalentto Class 3B or Class 4 to any
person who might be within the protectivehousing.
c) Where “walk-in” access during operation is intended or reasonably
foreseeable, emission of laser radiation that is equivalentto Class 3B or Class 4
while someone is present inside the protectivehousing of a Class 1, Class 2, or
Class 3R product shall be preventedby engineering means.
Note:Methods to prevent human from radiation when persons are inside
the protective housing can include pressure sensitive floor mats, infrared
detectors, etc.
Part 1: Security Statment Before Installation

3. The laser itself has a protective cover,the protectivecoveris fastened by
screws or magnets. Whenthe laser is installed on the laser engraver, the
protectivecovershould be checked to be reliably locked,and can not be
removedin the energized state.
4. The laser engraverhas an emergency stop button,which can immediately
stop the output of the laser when pressed under unexpectedcircumstances.
5. The laser engraver has a reset button, which can resume work under the
conditionof confirmingsafety after liftingthe interlock or emergency stop.
6. Set a warning mark on any window or channel that can activelyobserve or
passively receivelaser radiation on the laser engravingmachine.
7. If the laser burns the skin or eyes, please go to a nearby hospital for
examinationand treatment immediately.

Laser light can cause harm to human eyes and skin. Do not expose your eyes
or skin directly to the laser light. This laser product emits a collimatedlaser
beam through an optical lens. The light emittedby the product, whether direct
or reflected,can be veryharmfulas it can travel long distances while
maintaininghigh optical density. Whenhandling the product, it is necessary to
wear appropriate goggles (OD5+) to protect the eyes from all laser light,
including reflectedand stray light. Reflectedand stray light that spills into
unintended areas should be attenuated and/or absorbed.
2.1 Laser safety
Wehave installed a laser shield on the laser, which can filterout most of the
diffusereflectionof the laser spot. However, when using the laser engraving
machine, it is recommendedto wear laser protectiveglasses to prevent eye
damage.Avoid skin exposure to type 4 laser beams, especially at close
distances. Teenagers must be supervisedby their parents while using the
machine. Do not touch the laser engravingmodulewhile the machine is
active.
2.2 Fire safety
Because cutting burns off the substrate, a high-intensity laser beam
generates extremelyhigh temperaturesand a lot of heat.Certainmaterials
can catch fire during cutting, creating gases and fumesinside the equipment.
A small flameusually appears here when a laser beam hits the material.It will
movewith the laser and will not stay lit when the laser passes by. Do not
leavethe machine unattended during the engraving process. Afteruse, be
sure to clean up the debris, debris and flammablematerialsin the laser
cuttingmachine.Always keep an availablefireextinguishernearby to ensure
safety. When laser engravingmachines are used, smoke, vapour, particles,
and potentially highly toxic materials (plastics and other combustible materials)
are produced from the material.These fumesor air pollutantscan be
hazardous to health.
Part 2：User Security Statement

2.3 Material safety
Do not engravematerialswith unknown properties. Materials
Recommended:Wood,bamboo, leather, plastic, fabric, paper, opaque acrylic,
glass. Materials not recommended:Metal,precious stones, transparent
materials, reflective materials etc.
2.4 Use Safety
Use the engraver only in horizontal position and ensure that it has been
securely fixedto preventfires caused by accidentalshiftingor dropping from
the workbench during work. It is forbiddento point the laser at people,
animals or any combustibleobject, whether it is in working condition or not.
2.5 Power safety
To preventaccidental disasters such as fire and electric shock, the laser engr
aver providesa power adapter with a ground wire. Whenusing the laser
engravingmachine, insert the power plug into a power socket with a ground
wire with a ground wire when using the Laser Engraver.
2.6 Environmentsafety
Wheninstalling engravingand cutting equipment, please make sure that the
workplace must be cleaned up, and that there should be no flammableand
explosivematerials around the equipment. A metal plate must be placed
under the bottom when engravingor cutting.

Part 3: Disclaimer and warning
This product is not a toy and is not suitable for people under 15. Do not allow chi
ldren to touch the laser
module. Please be careful when operating in scenes with children.
This product is a laser module. Please read the operating instructionmanual
carefully. VEVORreserves the right to update this disclaimer and safe
operation guide.
Please be sure to read this document carefullybefore using the product to under
stand your legal rights, responsibilities and safety instructions. Otherwise, it ma-
y bring property loss, safety accidents, and hidden danger to personal safety.
Once you use this product, you shall be deemed to haveunderstood, and accep
ted all terms and contents of this document.User undertakes to be responsible f
or his or her actions and all consequences arising therefrom. User agrees to use
the Product only for legitimate purposes and agrees to the entire terms and cont
ents of this document and any relevant policies or guidelines that VEVOR may e
stablish.
You understand and agree that VEVOR may not be able to provideyou with the
cause of the damage or accident and provideyou with after-sale service unless
you provide the original engravingor cutting files, engravingsoftware
configurationparameters used, operating system information,videoof the
engravingor cutting process, and operational steps prior to the occurrence of a
problem or failure.
VEVOR is not liable for any and all losses arising from the user's failure to use t
he product in accordance with this manual,Withoutthe guidance of the
company'stechnical personnel, users are prohibited from disassembling the
machine by themselves.If this behavior occurs, the loss caused by the user
shall be borne by the user.
VEVOR has the ultimateright to interpret the document,subject to legal complia
nce. VEVORreserves the right to update, modify,or terminatethe Terms withou
t prior notice.

P a r t 4 ：I n s t a l l a t i o n S t e p s
S t e p 3 ：I n s t a l l t h e s u p p o r t f o o t a s s e m b l y a n d
t h e Y - a x i s t a n k c h a i n
If installation is difficult,
adjust the offset wheel
S t e p 2 ：I n s t a l l t h e X - a x i s a s s e m b l y
The guide rail passes through the
middle of the 3 rollers. Loosen the
distance between the upper and
lower guide wheels appropriately.
After assembly, if you
find that the four feet are
not aligned, please
slightly loosen the
screws of the support
feet. After the four feet
are aligned, tighten the
screws again.
M5X8
M5X8
M5X8
M5X8
M3X6
M5X15
M5X15
M5X25
S t e p 1 ：A s s e m b l e t h e f r a m e
M5X25
M5X25
M5X25

S t e p 5 ：I n s t a l l t h e t i m i n g b e l t
S t e p 4 ：I n s t a l l t h e X - a x i s t a n k c h a i n
Using M5 ×6 T-shaped
combinationnut locking with belt
M3X6
M3X6
M3X6

S t e p 6 . 1 ：S t e p 6 ：L a s e r i n s t a l l a t i o n ( f o r 5 W
a n d 1 0 W m o d e l s )
S t e p 6 . 2 ：M o u n t i n g l a s e r ( f o r 2 0 W ) ）
M4X12

S t e p 8 ：A d j u s t t h e e c c e n t r i c w h e e l
TIPS：How to determine the tightness of eccentric nuts?
Under the condition of ensuring that the bracket does not shake, you can lift one end of the
machine to an angle of 45 degrees with the horizontal plane, and release the X-axis or Y-axis
bracket from a high place. If the bracket can slide at a constant speed to the end, the tightness
is suitable.
Use a wrench to turn
the eccentric nut to
adjust the tightness of
the guide wheel and
the guide rail
S t e p 7 ：I n s t a l l t h e c a b l e
1
2
3
45
blue
terminal

Part 5：Control box description
1.Emergency stop switch：In case of emergencies, the machine will
immediatelystop working when you press it. Whenyou need to unlock
it, turn the button clockwise to restart the engraver.
2.Power socket: DC 12V power supply(A7),DC 24V power supply(G3).
3.USB interface:control the engraver on the computer by connecting to
the computer through a USB cable.
4. Power switch: control the power on and off.
5. TF card slot: here to insert the TF card(TF card needs to be
purchased by yourself).
6. Reset switch: Whenan emergency occurs or the machineis stuck,
press the reset button to restart the engraver.
Before use, please make sure that the emergency stop switch is
in the up state.
1
2
3
4
5
6

Instructions for exporting nc and gc format files
1.Importthe picture to be engraved or cut into laserGRBL. After setting the
engraving speed and energy parameters etc., click File, and select Quick Save
1.LaserGRBL software
2.Select TF card as the save path, click Save to generate nc file.
1.Import the picture to be
engraved or cut into Lightburn.
After setting the engraving
speed and energy parameters
etc., click Save Gcode.
2.Lightburn software
2.Select TF card as the
save path, click Save to
generate gc file.

1. Downloading LaserGRBL software
2. Installing LaserGRBL
3. Adding custom buttons
4. Connect laser engraving machine
5. Setting Engraving Parameters
6. Laser focus adjustment
7. Positioning
8. Start, Terminationcarving or cutting
9. LightBurn Installation Tutorial
Part 6：Software installation and use

1. Downloading LaserGRBL software
LaserGRBL is one of the most popular DIY laser engraving software in the
world, LaserGRBL download website:
http://lasergrbl.com/download/
2. Installing LaserGRBL
Double-click the softwareinstallationpackage to start the software
installation,and keep clickingNext until the installationis
complete.(Picture1)
Picture1: LaserGRBL
software installation
3. Adding custom buttons：
1.The softwaresupports users to add custombuttons, you can add
custom buttons in the softwareaccording to your usage. Werecommend
the officialCustom Buttonsfrom LaserGRBL.Custom button download
address: http://lasergrbl.com/usage/custom-buttons/.The downloaded
custom button is displayed as shown in the figure. (Picture2)
Picture 2:custom button
package
2.Next, we will load the custom buttons into the LaserGRBL
software. In the LaserGRBL software,right-clickon the blank space
next to the bottom button (as shown in Picture 3) -> Importcustom
button, then select the custom button zip file downloaded to import,
keep pressing Yes (Y) until no window pops up. (Picture 4、Picture
5）
Picture 3: adding custom button
Picture 4: custom button loading

The installedsoftware is shownas the followingfigure.
Picture 5: Software button
4. Connect laser engraving machine
A.Connect the engraver to a computer with LaserGBRL softwareinstalled.
B. Plug in the power supply of the engraving machine.
C. Open the LaserGRBL software
D.Select the correct port numberand baud rate in the software - 115200, (in
general, COM ports do not need to be selected manually,but if you have
more than one serial device connected to the computer, it needs to do so,
you can find the port of the laser engraver in the device manager of the
Windows system, Or you can simply try the port numbersdisplayed one by
one).
Check the port number

E.First, install CH340 Driver. In the LaserGRBL software, click "Tools">"install CH340
Driver" to install the driver, and restart the computer after installationto connect.
F.Click on the lightning connection logo in the software. When the lightning logo
changes to a red X, the connection is success.
G. The computer and engraving machinechain machinefailure, need to update the
drive, the methodis as follows
Connect the engraving machine
In LaserGRBL, click "Tools" > in turn. Install CH340 Driver "Update and
installthe Driver, restart the computerafter the update, and then connect,
as shown in the picture below.
Installatio

5. Setting engraving parameters
2.Picture parameters, engraving mode, engraving quality settings
a.LaserGRBL can adjust the sharpness, brightness,contrast,highlight and other
attributesof the target picture,when adjusting the parameters of the picture, the
factual effect will be shown in the right preview window, there is no standard
here, just adjust the effect you want.
b. Engraving mode usually chooses "line to line tracking" and "1bit dithering",1bit
ditheringis more suitablefor engraving grayscalegraphics. If you are going to
cut, select the vector graphics or centerline engraving mode.
c. Engraving quality essentially refers to the line width of the laser scan, this
parameter mainlydepends on the size of the laser spot of the engraving
machine, it is recommended to use an engraving quality of 8, The response to
laser illuminationvaries from different materials,so the exact value depends on
the specific engraving material.
d. at the bottom of the preview window, the imagecan also be rotated, mirror,
cut, etc. operations.
1. Select the engraving file.
Open LaserGRBL software, click "File"> "Open File", then select the graphics
you want to engrave, LaserGRBL supportsNC, BMP, JPG, PNG, DXF and
other formats.
Open file

Introductionof Setup Interface
e. After completingthe above settings, click next to the the settings of carving
speed, carvingenergy and carvingsize.
3. Engraving speed, engraving energy and engraving size Setting
a. recommendingthe engraving speed for 3000, this is the best value for the
engraving effect after repeated experiments, of course you can increase or decrease
the speed accordingto your preference, faster speed will save the engraving time,but
it may reduce the engraving effect, slower speed is the opposite.
b. In the selection of the laser mode, there are two commandsfor laser, M3 and M4, it
is recommended to use the M4 commandfor 1bit litter engraving, and M3 command
for other cases. If your laser only has M3 instruction,please check whether the laser
modeis enabled in the GRBL configuration,please refer to the official instructions of
LaserGRBL for GRBL configuration.
c. Choose the engraving energy accordingto different materials,
d. Finally,set the size you want to engrave, click on the "Create" button, all the
engraving parametershave been set.
Speed recommendation
3000
Input appropriateenergy
according to your
material
Enter the appropriate
size accordingto the
contour of the object to
be carved
Setting of
engraving
speed and
laser power