Rose electronics BesCutter G Series User manual

Rose Graphix LLC DBA BesCutter.Com, 5490 Lee St, Lehigh Acres, FL 33971 888-525-2897
User Manual
(Version: V6.15)
BesCutter
Fiber Laser Cutting
M
achine

1. Preface
Thank you for purchasing the G series laser cutting machine from Rose Graphix LLC. If this is
your first time to use this machine, please read the manual carefully before using the machine. The
content labeled "dangerous", "warning" and "attention" must be pay attention to specially to ensure
the safety of your and surrounding personnel, and proper use of this equipment.
"Dangerous": If you do not follow the correct operation, it may immediately lead to serious injury
or even life-threatening.
"Warning": If you do not follow the correct operation, it may immediately lead to serious injury or
even life-threatening.
"Attention": If you do not follow the correct operation, it may immediately lead to serious injury or
damage to the equipment.
2. Product overview
2.1 Summary
Adopting large power, high performance fiber laser with international advanced technology and
Cypcut high-grade CNC system, equipped with imported original AC servo motor and some high
efficient transmission mechanism, such as, German original gear and rack, imported high-precision
linear guide, the G series laser cutting machine is stable and reliable, good dynamic performance, with
a strong load capacity performance. Having high speed, high precision, high efficiency, high cost
performance, etc, this is high-tech products integrated with laser cutting, precision machinery,
numerical control technology and other disciplines. Users must read the manual carefully before the G
series laser cutting machine is used. If there is any problem in using process, please contact us in time,
we will give you a satisfactory answer in the shortest time.
Please check the manual in accessory box when it is opened. If the manual is not complete, please
contact us in time.

2.2 Product characteristics and appearance
Figure: The machine appearance
Note: All the pictures in this manual are for reference only. (Do not include the products special instructions). The product provided
the user shall be prevails
a. Beams cast having double column framework layout and bed welded being large cross section,
the machine is high at rigidity, stability and shock resistance.
b. Precision linear guide, gear and rack imported being transmission components, the machine is
higher at precision and speed, positioning accuracy is ± 0.03mm/m, and repetitive positioning accuracy
is ± 0.02 mm, maximum speed (no-load) is 80m/min.
c. The Cypcut control system is adopted that can satisfy the processing of various kinds of board.
The AC servo motor is small inertia and better at dynamic performance.
d. Revolution being reduced by the reducer (its back lash is less than 5 arcmin), the servo motor
drives the moving components to assure output power at low speed.
e. The laser and main machine are installed together, which ensures the stability of light path.
f. IPC equipping with CAD/CAM, so it is convenient to drawing and program in cutting, which
maximize the conservation of raw materials.
g. Cutting chip falling into the scrap car from funnel, so it is convenient to clean up the chip regularly
by operators.
h. Rack and guide way of X axis and Y axis are dustproof that are covered by protection cover to

prolong the service life. Gear and rack of X axis and Y axis are regularly lubricated by central lubrication
devices; linear guide way of X axis and Y axis are lubricated by manual regular.
i. Z axis motor is controlled by capacitive sensor to driven cutting head that moves up and down,
which ensure the distance between nozzle and the plate cut to be constant to ensure the cutting quality.
Drawer-style lens base is adopted in cutting head, so it is extremely convenient to replace or clean the
lens. According to the material and thickness of the plate cut, focus position can be adjusted up and
down to ensure cutting quality.
j. Travel limit switch are used to control motion stroke in X, Y and Z axis, at the same time, elastic
cushion pads are used also at limit position for the movement safety.
k. Closed optical path is adopted to ensure the service life of the lens.
l. Equipped with automatic focusing system, the laser head is prompting and accuracy to move.
m. Components imported are adopted in the gas path system. Three different kinds gas can be filled
simultaneously and chosen freely. The pneumatic system is designed to withstanding high pressure
and to ensure system stability; the nitrogen pressure may be 3.0 Mpa, in the cutting of stainless steel
plate. All these improve the reliability and cutting quality.
n. Operation platform possess elegant appearance, operating the machine is as happy as you do at
ATM.
2.3 Main use and scope of application
Using medium - power fiber laser, this series of laser cutting machine is mainly used to cut ordinary
carbon steel plate, stainless steel plate, galvanized sheet and other materials. It has the advantages of
high precision, high efficiency, and high cost performance and so on.
Note: if the power of the laser chosen is different, the range of the cutting material may be
different.
2.4 Environmental conditions
a. Standard power supply: Three-phase five wire, 380V 50Hz
b. Total power of main machine is not greater than15KVA;
c. Power of laser and cooling-water machine is not greater than 5KVA;
d. Power quality: three phase unbalance is less than 2.5%, line voltage fluctuation is less than 5%.

e. The machine must be grounded, grounding pile on machine side and connecting wire, to connect
machine to a power wire is also allowed, and the grounding resistance should be less than 4 ohm.
f. Site environment: good ventilation conditions, no dust, no corrosion, and no pollution.
g. Installation foundation: There is no larger vibration source surrounding machine; there is anti
vibration groove surrounding.
h. laser working temperature is lower than 20℃.( See the instructions of the laser)
i. Chiller is the special equipment providing circulating cooling water to laser and lenses. Water flow
should maintain above 12L/ min; circulating cooling water should be high quality pure water or distilled
water.
j. For fire prevention, appropriate fire extinguishers should be configured and fire channel is reserved at
processing sites.
k. The distance from machine left side to the workshop wall and the distance from machine backside to
the workshop wall should be larger than 1.2m; the distance from laser backside to the workshop wall
should be larger than 1.5m. Chillers and air compressor can be placed outdoor, but the distance from
the laser should be less than 5M.
l. Control unit, servo unit, display and control panel should avoid being subjected to electromagnetic
waves interference, such as electric arc welding and electrical discharge machining machine, which will
affect the machine normal work.
2.5 The influence on environment and power requirement
An optical fiber laser generator is used in this machine; waste gas will be generated during cutting,
so is necessary to switch on the exhausting device in cutting process.
The fiber laser generator belongs to the fourth category laser products. Light beam emitted, or
reflection and diffuse light from mirror may cause damage to the human body (especially the eyes),
personnel presence should pay attention to the protection, should also prevent the occurrence of fire.
Being high energy consumption equipment, the laser cutting machine needs total power about:
three phase 380V 50Hz, 12KVA (500W continuous type laser and chillers. If laser selected is different,
the power needed will be different also).
2.6 Machine structure and working principle

G Series CNC laser cutting machine is mainly composed of the main machine, control systems,
laser, chiller and exhaust fan, etc. Except for exhaust fan and chiller, others have there’s own manual.
This manual mainly introduces the structure of main machine and electrical control system; the rest
parts can be referred in their specification.
The main machine is the most important component of the laser cutting machine; it is guarantee to
achieve cutting capabilities and assure cutting accuracy. Main machine consists of the bed, laser
generator, beam section, Z-axis device, table, auxiliary (protection cover, pneumatic system and
cooling system, lubrication system), console, and so on. Details see section 2.6.2.
Electrical control system that consists of CNC systems and low-voltage electrical system is an
important part to achieve various type graphics running track.
CypCut CNC system, based on the WINDOWS system operating platform, is used on this
machine. Containing 32-bit microprocessor, internet communication interfaces, operation reliable, and
the system has characteristics of fast interpolation operation, convenient operation, good dynamic
performance, strong load capacity and so on.
The low voltage electrical apparatus control system, located within the cabinet, is interface of the
whole electrical control system. All the components used in electrical system are produced by
well-known manufacturers, which ensure the machine’s stable and responsive in operation. Driving
motor is AC servo motor that drive the X-axis (beam), Y-axis (slide), which have good accelerate
performance, quick response; maximum position speed is up to 80m / min. Z axis, laser cutting head,
being feeding axis, is driven by AC motor to move up and down; cutting head is good at dynamic
response and can be servo controlled as well as NC controlled.
Other auxiliary including large and small chiller, air exhaust system, is introduced in detail at
section 2.6.2.
2.6.1 The overall structure and working principle, characteristics
The main machine is the most important component of the laser cutting machine; the cutting
capabilities and cutting accuracy is achieved by this part. Main machine consist of the bed (X axis),
beam (Y axis), Z axis, exchange table (optional), table, gas path, water path and other components,
etc.

2.6.2 The structure, function, and working principle of main components or functional
units
2.6.2.1 Bed
Being a rectangle frame structure that is welded by high strength steel, bed is annealed to
eliminate internal stress after welding and is vibrating treated after roughing. There is also vibration
effectiveness after semi-finishing. Because of stress relief more thoroughly, so the bed deformation is
small, and the precision is good for a long time.
2.6.2.2 Beam
Beam is cast from high-strength aluminum. After solution treatment and artificial, it is machined to
ensure the accuracy and service life. The processing flow include roughing, VSR, semi-finished, VSR,
finishing.
Beam is installed on the support rail of bed (there are linear guide rails and flat rail); it can move
reciprocating in the X-axis direction. The movement is achieved by rack and pinion transmission, in
which 2 racks are fixed on the bed and 2 pinions are driven by 2 serve motor directly to synchronous
rotate; pinion translation makes the beam move in the X-axis direction. High-quality linear guides are
mounted in beams system. Cutting head, fixing on slide, is driven by servo motor through reducer and
move reciprocating in the Y-axis direction. There are the soft limit switches control stroke, and
elasticity buffer at limit position to ensure that the system is running security. Retractable organ type
shield located between the beams and cross slide ensure the rack and linear rail runs in fully enclosed
environment, to unaffected by the external environment.
2.6.2.3 Z-axis device
Z-axis device drives the cutting head to move up or down. Cutting head is located on Z-axis slide,
its ball screw is driven by servo motor controlled by CNC system. The travel stroke of Z axis is 120mm;
there are limit switch at upper and lower ends to control the Z axis stroke, while there are elastic
cushion at both ends to ensure the safety of movement. Ball screws and linear guides adopted are all
high-quality products to ensure the transmission accuracy.
Z-axis both can do its individual interpolation motion, being a CNC axis, and can do association
motion with X, Y-axis. It can be switched to follow control by changing electronic control to meet the
needs of different situations also. Since the Z-axis follow is controlled by the numerical control system,
thus relatively moving accuracy is higher, stability is better, so as to ensure the cutting quality. Having
sealed and elastic buffer, the cutting head has longer service life.

After the distance from the nozzle to plate surface is detected by the capacitive sensor installed in
the cutting head, the signal is fed back to the control system, then the cutting head, driven by Z axis
motor, moves up and down to assure the distance between the nozzle to plate unchanged and to
ensure effectively cutting quality. There is adjusting device in cutting head, the position of the focus
can be adjusted, and according to the material and thickness of the plate cut, thereby good cutting
surface can be obtained.
Nozzle is one of wearing; some nozzles having different aperture should be conserved by users to
facilitate replacement.
The guides and lead screw lubrication oil nozzle are set up in Z-axis, these nozzle should be
regularly oiled.
2.6.2.4 Electrical control
The electrical control system of G series CNC laser cutting machine is mainly composed of
numerical control system, servo systems and low-voltage electrical system. CypCut CNC system,
which is a PC CNC system based WINDOWS, is adopted by the laser cutting machine. This CNC
system has the characteristic with interpolation operation fast, easy to operate; Servo system includes
Fuji AC servo motor and driver, reliable, good dynamic performance, with bigger load capability.

Figure: CNC operator interface
a) Easy to operation
There are six function soft keys and eight operational soft keys in this machine, operational soft
keys have different functions in different operation mode, thereby the operating button are reduced and
the operation panel is simplified. There are menu display functions in any mode, so operation is
intuitive.
The machine has HELP system, the operator, even if who are not familiar with the instructions, can
operate machine base on the prompt of the CNC system.
b) Special laser power control function
According to the speed / power function curve set by operator, the optimal laser cutting power can
be obtained by adjusting precisely laser power at different speeds when components are acceleration
or deceleration.
c) Strong processing function
The machine has a variety of processing and auxiliary function instruction; complex graphics can
be obtained by the instruction editor.
d) high-precision machining
Having a good dynamic electromechanical drive performance, the machine is good follow
performance and high precision in the process.
e) Graphic display
There is graphic display and dynamic graphics simulate trace display function for parts program
edited. processing is more intuitive, easy monitoring and control.

Figure: Graphic display
f) Various alarm functions
Having a self-test alarm system and automatic protection function, this CNC system also can do
alarm display and automatic protection for external conditions.