Wisely MY-L1390 User manual

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MY-L1390 Laser Engraving & Cutting Machine
Dear Customers,
Thanks for choosing our MY-L1390 Laser engraving and cutting machine. Please read this instruction carefully
before using it, it is helpful for your operation.
Our aim is to improve the existing products continuously. So it is possible that the machine does
not match the user manual exactly. If any change happens, we will tell you by email. Please contact our after-sale
service department if you need any help, we will try our best to meet your requirement.
Because the I/O, laser power or laser tube is electrical, please be more careful to avoid
electrical shock when you operate the machine.
STATEMENT
This instruction book is protected by copyright law, the international copyright treaties and
applicable laws. Please don’t copy any content of it without permitted. Abide by the sustainable
development principle; we may amend this instruction book when necessary without any notice.

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The manual will teach you how to install, use, process and maintain the laser engraving machine in details. Before
unpacking and using the machine, please pay attention to the following points:
The operator should have relevant technical training, or supervised by the specially-assigned person.
The manual will help you know and process the machine in accordance with rules and regulations.
Many important tips included in the manual will help you process the machine safely and reasonably. If you
could follow these tips, not only you can avoid the risk of accidents, lower maintenance costs and reduce
downtime, but also can improve machine reliability and working life.
The manual should be stored in the machine side for inspection at any time.
The machine color in the manual is for reference, not related to the function.
Safety requirements
In order to avoid possible danger, this product can only be used within the specified range.
(1) Anybody should not look steadily at the laser beam without wearing goggle when engraving/cutting.
(2) Do not try to check the laser beam coming by following the laser beam path, it will hurt your eyes, even the case
is closed, there is the possibility on opening with an error.
(3) Children, mental retardation and the people who don’t understand laser character should not use the machine.
(4) The type of laser is not visible, so prohibit putting flammable, explosive materials near to the equipment (The
deviation of laser may lead fire).
(5) Ground Wire between the machine and ground must be connected well before your operation (To avoid static
electricity which might hurt operator and machine),
(6) Machine top cover should be sealed to prevent the deviation of laser wounding during machine working.
(7) There is high voltage inside the machine, the non-specialists are strictly forbidden to disassemble the machines
without permission.
(8) During the machine working, the operator must always observe the work of machine (For example: if the air
from air compressor or pump flows properly, if the laser firing is fine, if the machine sounds abnormal, and if the
temperature of circulating water is correct, etc.). Operator should not leave in case of unnecessary losses.
(9) Don’t power on the machine when the voltage is unstable, otherwise you must use the regulator.
(10) The water should be kept clean, and the temperature should be 15-35 degrees (recommended high-purity water).
(11) Don’t use the max. Current for too long, to avoid breakdown of laser power which might reduce the laser tube
life.
(12) laser power supply used in the basic constraints (the maximum current can not exceed 35mA)

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Once the suspicious problems occur, stop operating the machine, power off the machine and check what happened.
1. Don’t operate in the wet condition.
2. Don’t operate it in the Explosion environment.
3. Keep the surface of machine body dry and clean.
4. Recommend: Every machine-related staff should read this manual.
5. Operators: including personnel of assembly, excluding routine failure, garbage removal, maintenance of
machinery and waste disposal.
6. Maintenances: including personnel of maintenance, examination and repair.

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Catalog
MY-L1390 Laser Engraving Cutting Machine..........................................................I
Statement.......................................................................................................................I
Catalog.......................................................................................................................... 1
Ⅰ. Summary.................................................................................................................3
1.1 Advantages of Laser Processing Technology................................................................... 3
1.2 Product Introduction..........................................................................................................3
1.3 Technical Parameter:.........................................................................................................4
Ⅱ. Laser Machine Structure...................................................................................... 5
2.1. Structure description..........................................................................................................5
2.2. System components........................................................................................................... 5
（1）Front side sketch map of the machine...................................................................... 5
（2）Sketch map of the control system.............................................................................6
Ⅲ. The Installation of Laser machine........................................................................8
3.1. Unpack the package box....................................................................................................8
3.2. Positioning......................................................................................................................... 8
3.3 Sketch map of the external laser power supply..................................................................9
3.4 Laser Tube structure and installation..................................................................................9
3.5 Laser Power Supply installation....................................................................................... 11
3.6 Water chiller installation...................................................................................................12
3.7 Installation of air compressor and air pump.....................................................................14
3.8 Exhaust fan installation.................................................................................................... 16
3.9 Installation of the control system..................................................................................... 17
Ⅳ.Structure and adjusting of laser path................................................................. 16
4.1 Structure of the laser path.................................................................................................16
4.2 Adjust the laser path......................................................................................................... 18
4.3 Adjust the laser tube......................................................................................................... 19
4.4 Adjust the focus lens.........................................................................................................21
Ⅴ. Control Panel and Introduction......................................................................... 22
5.1 Sketch map of the control panel....................................................................................... 22
5.2 Side sketch map................................................................................................................ 23

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5.3 How to turn on and turn off the laser machine.................................................................23
Ⅵ. Precautions for use and Maintenance................................................................24
6.1 Daily caution.....................................................................................................................24
6.2 Maintenance......................................................................................................................25
Ⅶ. Regular failure and failure elimination............................................................. 26
7.1. No ray.............................................................................................................................. 26
7.2 The laser is very weak...................................................................................................... 28
7.3 The engraving surface is not plain....................................................................................28
7.4 Spots scattered, not focusing, lens cone heat…phenomena of laser engraving machine.29
7.5 Sparking from the exit of laser head................................................................................ 30
7.6 Water chiller alarming...................................................................................................... 31
7.7 X axis or Y axis does not move around or move abnormally.......................................... 31
7.8 Laser head or beam shaking............................................................................................. 32
7.9 Different engraving depth or could not engrave deep depth............................................32
7.10 Wrong engraving and not following the file engraving................................................. 33
7.11 Wrong size or not closing and malposition when its engraving.....................................33
7.12 No output from the computer......................................................................................... 33
7.13 SOFTWARE ERROR ALERT INTERFACE................................................................ 34
7.14 Normal problems of software.........................................................................................35
Ⅷ. Regulations of repair guarantee......................................................................... 36

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Ⅰ. Summary
1.1 Advantages of Laser Processing Technology
Processing field is the largest field of laser technology application. Laser processing technology is a technology that
using the interaction of laser beam and objects makes marking, cutting, welding, surface treatment, punch, micro
processing on materials, as well as the illuminant recognition objects. It has been a key technology of industrial
production automation. The valuable features of lasers---good coherence, excellent monochromatic, perfect
directivity, high brightness determines the advantages of laser in processing fields:
Laser as a processing method, no interactions between laser and work piece, with the advantages of no touching, no
cutting force, small thermal effect, and no mechanical deformation, so it ensures the original precision of the work
piece. Also both power and speed of high energy laser beam can be adjusted, so can achieve the purpose of various
processing. Meanwhile, the adaptability of materials is very extensive, so it can make high precision marks on surface
of various materials and with very good durability.
1.2 Product Introduction
Laser engraving machine is a set of professional laser engraving equipment together with optical, mechanical,
electrical. It is manufactured by our company, the key parts are imported, with the novelty appearance, unique
structure, easy operation, high modulation frequency, fast speed, high precision, stable performance and so on. The
application scope of laser engraving machine is very wide. Different designs have been used in machines of our
company to meet the needs of all use. We believe that the type of machine you’ve chosen will surely be of great help
to your work. The following introductions might provide you information for enlarging the scope of usage and to use
laser machine well.
Printing and packaging industry: rubber plate laser engraving, laser cutting of paper product, etc..
Artwork and gift industry: bamboo slip laser engraving, wooden book laser carving, redwood laser engraving,
double-colored plate laser engraving, box-shaped artwork laser engraving, chessboard laser carving, etc..
Advertising industry: organic glass laser engraving (cutting), laser carving of all kinds of boards, double-colored
plate laser carving, etc..
Leather clothing industry: genuine and synthetic leather cutting and surface pattern engraving of different kinds
of shoes and leather clothing, pattern engraving of all kinds of clothing and textile, etc..
Model making industry: building model laser engraving (cutting), laser engraving (cutting) of aviation and
navigation models, laser engraving (cutting) of cartoon figures, industrial model laser engraving (cutting), etc..

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1.2 Technical Parameters:

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Ⅱ Laser Machine Structure
2.1. Structure description
Complete working system is composed of principal machine of laser engraving, laser power supply, laser engraving
software, exhaust fan, air pump, submersible pump, water tank, air pipe, calculator, communication cable, etc..
Printer, scanner, various kinds of designing software, etc. are equipped according to different machines being set up.
2.2. System components
This equipment is made up of five parts: machinery platform, optical system, drive system, control system, and
accessory system.
※Machinery platform: composed of fittings such as machine cover, guide rail, base frame, reflector
mount, etc..
※Optical system: composed of laser tube, laser power supply, three reflecting mirrors and one focus
head.
※Drive system: composed of three imported balanced straight line guide rails of high accuracy, belt,
two step motors and several gears.
※Control system: composed of high-speed DSP control card, two sets of switching power supply and
two step motors drivers.
※Accessory system: composed of circulating water chiller, air pump and exhaust fan.

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（1）Front side sketch map of the machine
（2）Sketch map of the control system
1 Terminal board
2 Control box 6535 or 6565
3 USB PORT
4 Data line for controlling operation panel
5 Filter
6 Driver of X axis stepper motor
7 Bulb socket
8 Protect switch

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9 DC48V power supply, which offers power to the drivers of the stepper motors
10 DC24V power supply，supply power for MPC6535 / 6565
11 Driver of the Z-axis stepper motor(optional part)
12 Driver of the Y-axis stepper motor
13 Connecting wire of the laser tube
14 Signal cable of the laser power supply.
Sketch map of the solenoid valve（Optional device）
1 DC24V relay
2 Pin 13 of the relay, connected with the control box 6535
3 Pin 12 of the reply, connected with the ground wire of the DC24V power supply;
4 Pin 14 of the reply, connect with the +24V of power supply DC24V;
5 Pin 8 of the reply, connect with the solenoid valve;
6 Ground wire of the power supply DC24V;
7 +V of the DC24V power supply;
8 The power supply of the DC24V;
9 Negative electrode of the DC24V power supply;

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10 Positive pole of the DC24V power supply;
11 0utput of the solenoid valve;
12 Pin 8 of the reply
13 Connect with the positive pole of the DC24V power supply;
14 Solenoid valve;
15 Input of the solenoid valve;

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Ⅲ The Installation of Laser machine
3.1. Unpack the package box
After opening the packing box, please check out whether there is any damage on laser tube or not. Then check the
complete machine to see whether there is any scratch on the surface and the completeness of fittings.
3.2. Positioning
The machine should be put in cool and dry places. It should be placed close to earth wire. After the machine has been
adjusted, please don’t move it again, otherwise the ray path has to be readjusted.
After placing the machine, please fix the six bottom wheels. if the machine shaking, please adjust the screws on the
holder via making it up or down, tighten the nut after adjusting well, and make it stationary. Structure diagram as
follows:
1.Fixed wheel which can be moved up and down.
2.Universal wheel, the directions can be changed discretionarily.

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3.3 Sketch map of the external laser power supply
1. Main input power. It connects with AC220V.
2. Output power, which offers power to the air compressor
3. Output power, which offers power to the water chiller.
4. Output power, which offers power to the water chiller.
3 and 4 are the same.
Keep flat the machine when put it, fixed well for every foundation；the
machine could not rocked or else will effect the engraving or cutting
performance, even damage to the machine or personal safety
The air humidity of the install place should not more than 50%, and
well-ventilated
Be carful for the shock hazard! Sometimes an electric spark
will be produced when you plug the power socket. Avoid
electrical shock and to ensure personal safety.

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3.4 Laser Tube structure and installation
Laser tube is the short of sealed CO2 laser tube. It is the most important part of the laser equipment.。because the laser
device is sealed by the glass tube, so it is called laser tube.
Structure of the laser tube：it is the most important part of the laser equipment. Usually adopt hard glass and with
layer structure. The most inside part is power pipe, the second layer is water cooling pipe, the most outside layer for
gas. The thickness of power pipe has non business with the our put laser power, mainly considering for the diffraction
effects caused by laser light spot, should be determined according to length of tube.
Longer tube will be a little thicker, shorter tube will be a little thinner. length and output power is proportional. Within
a certain length scope, every meter power pipe increases the power as the length increasing. The two sides of power
pipe connect with gas pipe, that mean there is one hole at one side for them to connect, at the other side connect via
Tracheal spiral. Then it could make the gas Cycle between power pipe and gas pipe, and change the gas at any time.
The function of water-cooled jacket is to cool the gas and make the output power stable.
The model of laser tube is usually decided by laser power, the normal model is: 25W, 40W, 60W, 80W, 100W, 120W.
Laser tube with different laser power with different length, such as 60w laser tube is 1200mm or 1.25mm, 80w is
1600mm.
Installation of the laser tube：
1). The laser tube is glass material and fragile. Remove the screws with the alien wrench (in the toolbox), put the
laser tube onto the two bases. The side of the laser tube which sending out laser should face the first reflecting
mirror. The distance between the side of the laser tube and the first reflecting mirror is 2-5cm. Fix the tube with the
clips.
1 Clip ring of laser tube
2 is full reflected mirror
2）Installation of the pipes of the water chiller
a) The inlet water pipe is towards the earth while outlet pipe towards the sky. Turn on the water chiller, check if there
are bubbles in the tube after one minute cycling of the water. If bubbles coming out, please loose the clips of the tube
and rotate the laser tube to extrusion the bubbles.

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b) The laser tube should avoid generating incrustation which would cause water stemming. If there is incrustation,
please clean it with 20% diluted hydrochloric acid.
3.5 Laser Power Supply installation
1) Laser tube wire installing:
2) Distinguish correctly the laser tube’s positive and cathode, As usual, laser output port is cathode (-), then the
other is the anode (+).
1. Water inlet of the tube 2. Anode (+) of the laser tube
3. Water outlet of the tube 4. Cathode (-) of the laser tube
3.6 Water chiller installation：
Connect the rubber pipe with the laser tube and water chiller. The outlet of the water chiller connects the inlet of the
machine, the inlet of the water chiller connects the outlet of the machine. After one minute of water circulation,
please check out whether there is any bubble in the laser tube. If there is, please turn over the tube to push the bubble
out.
The cooling water could not frozen in cold regions, especially
after the machine stop working, guarantee there is no cooling
water within the laser tube to avoid the crack generated by
cooling water frozen.
Please note: the driving way of the laser tube is high-voltage drive, and
the work voltage is about more than 18KW, To avoid electrical shock,
please electrostatic discharge before dismounting the power,
Please differ the positive and negative poles, don’t connect them
wrongly; or else will effect the lifetime of the laser tube, even damage to
it;

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1. Outlet of the laser tube, it connects with the inlet of the water chiller
2. Air input of the machine, it connects with the air compressor
3. Inlet of the laser tube, it connects with the outlet of the water chiller
Water pump（suggest to use water pump for the laser tube whose power under 40W）
1. Power line of the water pump;
2. Water pump;
3. Outlet of the water pump;

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To the water chiller (we advice to use the water chiller when the laser tube is more than 40W laser tube)
1.Inlet of the water chiller, usually connected with the output of the machine;
2.Output of the water chiller, usually connected with the inlet of the machine;
3. Protecting line of water temperature for the water chiller;
4. Power line of the water chiller;
5. Alarm lamp;
6. Temperature display screen for the water chiller;
7. Operation lamp;
8. Power supply for the water chiller;
a) Requirements of the water in the water chiller: The water should be purified water or high purity water. The
temperature of the water in the chiller should be 15℃-30℃. If the temperature is too high, please change the water or
turn off the machine.
b) The flow of water should be 2L -4L/minute. If too much or too little, the laser dot quality and laser power will be
affected. The chiller should be full, otherwise the tube can not be cooled well.
c) It is suggested the water in the chiller should be changed once a week.
3.7 Installation of air compressor and air pump
Instruction of air compressor（for cutting wood, MDF, die-board, plywood etc.）
Propose to use water pump under 40W laser tube
Propose to use water chiller for over 40w laser tube

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1. Air pressure display clock of air compressor.
2. Air outlet control gate of air compressor
3. Power line of air compressor
4. Air compressor
5. Air outlet of air compressor
6. Air filter
7. Air outlet of air filter
8. Filtering oil system
9. Filter’s air pressure adjusting knob
10. Air pressure display clock of air filter
11. Air inlet of air filter
12. Filtering water system

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Instruction of AIR PUMP（This is the normal air equipment）
1 air pump
2 air outlet of air pump
3.9 Exhaust fan installation
Connect the exhaust fan and machine with the air pipe. Turn on the exhaust fan.
After a long time, the exhaust fan will be polluted with dusts. Please open the box of the exhaust fan, remove the
two pipes, and then get rid of the dust in the fan.
1. Exhaust fan
2. Wind outlet of exhaust fan
3. Wind inlet of exhaust fan

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3.9 Installation of the control system
Installation of the software
Install software CorelDraw or AutoCAD at first, this system supports CorelDraw11，CorelDraw12，CorelDraw13，
CorelDrawX4，AutoCAD over 2000 version.
If this system can’t support AUTOCAD, please consult distributor.
Run Setup.exe and the dialog box as following:
There are three options in “Edition type”. The default path is “C:\LaserCut53”. Click and you can change
the install path. Click “Setup” and the software will be installed.
Then you CorelDraw or AutoCAD can be used directly.
When LaserCut51、LaserCut52、LaserCut53 is installed simultaneously,please chose different disk, such as D-disk or
E-disk
Ⅳ.Structure and adjusting of laser path
4.1 Structure of the laser path
Laser Path is ray guide system. The complete optical system is made up of laser tube, three reflecting mirrors, focus
lens and relevant adjusting devices. Ray path has close relationship with the effect of engraving and cutting.
Therefore please be patient and careful when adjusting the ray path.
Laser Path affects the effect of engraving and cutting greatly. Therefore please be patient and careful when adjusting
the ray path.
Notice: Please be sure the water cycling is normal before the machine working, otherwise the laser tube will be
damaged.