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Frequently Asked Questions


1. Focus lens for contamination: Clean focusing mirror.

2. Focus relief laser engraving machine equipment whether changes: Re-adjust the focus.

3. Light path is offset: Carefully adjustment of the optical path.

4. Reflective lens is contaminated or damaged: Clean or replace the reflective lenses.

5. Laser power is energized: Checking laser power supply circuit so that it is normal.

6. Laser tube is damaged or aging: Replace the laser tube.

7. Laser power supply is damaged: Replace the laser power.

8. Cooling water is circulating flow: Clear cool water.

9. The cooling water temperature is normal or not: Replace the clean cooling water to the temperature to normal.

What I tell you about the laser weaker of laser engraving machine? we have to know how the above problems to be fixed, and welcome to our online support with laser engraving machine.

1. When laser engraving with gradient, double phenomenon.

This phenomenon occurs when the slope of words carved smaller, usually the reason is "wide" setting slope too large, cause calculation errors, please set "wide" little slope.

2. If you only can move a graphic with one direction, please click "Shift" or "Ctrl" to recover.

3. PLT format cannot to engrave.

There are two reasons, one is the graphic is not closed, the other is graphic double. Please detect this phenomenon with "data detect" tools.

4. The size is not same with laser engraving and cutting samples. Open the item "laser engraving machine set", adjust the pulse.

5. The edge is irregularity when laser engraving.

The edge is irregularity maybe happen when you use the DSP laser engraver software, that means "burr", this is mainly caused by mechanical return clearance, this is the solution.

a. Draw a box (rectangular or square), set work mode for the laser engraving machine, the sculpture is 0.5 mm instead, then see laser engraving effect, theoretically, should be aligned, namely the odd interlaces did edge should be aligned, even did edge also should be aligned, only the odd and even did not have a little.

b. When you open "set laser engraving parameters", the parameters for different. laser engraving speed can be seen, the reverse gap is "0", you should adjust it as the matter of fact.

c. You can choose "single-track light" when best laser engraving effect needed. Not to chose the draw of "dual-engrave", but when you chose it, the efficiency would be lower.

6. The X-axis or the Y-axis not move.

a. Stir knob to chose the DC 5V, test the voltage between PULX(or PULY)and GND. Take Y axis as example, click the button of "up" or "down", the normal voltage is 2.8V, if it is not, we could confirm the controller was broken, please change the controller. If it is, please go to next step.

b. Exchange the output terminal of the two drivers, then press "Up" or "Down" button; if X axis works normal, it means there is something wrong with the motor on Y axis, please change a new one; if X axis doesn't work, it means there is something wrong with the driver on Y axis, please chance it.

7. X Axis and Y Axis work in only one direction.

a. Test the voltage between the DIRX and GND after pressed the multimeter into grade 5V; take the X Axis for example, press "left", then press "right" to see if there is some change on high level (>2.8V) and the low level(<0.8V); if not, the control card is broken and need to change a new one.

b. If with change, please check the driver; if works normal, please change the driver on Y Axis.

8. NO Ray.

Test the voltage between the LAS and GND after pressed the multimeter into grade 5V; press "fixed fire" in the control panel, to see if there is some change on high level (>2.8V) and the low level(<0.8V); if not, the control card is broken and need to change a new one. Also set up the time of fixed fir as 0 millisecond, which is in the PAD03 menu.

Adjust the power from 0%~100%, enter and press "fixed fire" button, then test if any change between the DA1 and GND from 0V to 5V; if not, the control card is broken, please change it; if both with, it means there is something wrong with the laser power supply.

1. The machine and the computer must have a good grounding.

2. Open the cutting software, click the file menu, communication settings to receive and send the buffer time is changed to 5 or 10.

3. The replacement of the data line or motherboard.

According to the same direction of the panel button, the laser cutting machine appears to be turning and reversing and motor power can not be locked.

1. First disconnect all power supply, the high pressure head with cotton cloth to wipe clean. (gentle scrub)

2. Cut off the broken pipe, re received the laser tube. And bundled with a tie.

3. The high voltage line (high pressure line with 7 silver thread, one less).

4. The fan will dry high pressure wet place, after half an hour, and then boot.

1. CNC router spindle rotation sound is not normal

a. The drive is set incorrectly.

b. Check whether the cooling water circulation.

c. There are problems with the spindle (bearing damage).

d. If the noise when loaded knife, normal, replace the tool without tooling.

2. CNC router spindle hot or noisy:

a. Check whether the cooling water circulation.

b. Check whether the bearing problem.

c. If loaded knife noise, without tooling normal, replace the tool.

3. CNC router spindle cooling water does not flow:

a. Check the coolant pump is working properly.

b. Check whether the water flow, the water from the spindle joint apart, blowing to the other side of the steam gun from one side or the connector on the spindle with a needle penetrating.

4. Motor reversal:

Check the motor cable is phase output UVW terminal ends of any exchange.

1. Roughness

Laser cutting cross section will form a vertical lines, the depth of the texture of the cut surface of the roughness of the cut surface, the more shallow lines, the more smooth cut section. Roughness not only affects the appearance of the edges, but also affect the friction characteristics, in most cases, it is necessary to minimize the roughness, so the more shallow texture, the higher the quality of the cut.

2. Verticality

If the sheet thickness exceeds 10mm, the verticality of cutting edge is very important. Away from the focus, the laser beam becomes divergent, according to the location of the focus, cutting to the top or bottom of the variable width. Cutting edge off the vertical line of a few millimeters, the edge of the more vertical, the higher the quality of cutting.

3. Cutting width

Kerf width generally does not affect the cutting quality, only in the internal components formed special precision contour, cutting width is important. This is because the cutting width determines the contour of the minimum, when the plate thickness increases, the cutting width also increases. So want to guarantee the same high precision, no matter how much the width of the cut, the workpiece in the laser cutting machine processing area should be constant.

4. Lines

High speed cutting thick plate, the molten metal will not appear in the vertical laser beam below the incision, but will be sprayed out at the laser beam side. As a result, the curved lines are formed on the cutting edge, and the lines are closely followed by the laser beam. In order to correct the problem, the feed rate can be reduced at the end of the cutting process.

5. Burr

Burr formation is a very important factor to determine the quality of laser cutting, because the removal of burr need extra work, so the amount of burr is serious and how much is able to directly determine the quality of cutting.

6. Material Deposition

Laser cutting machine before the beginning of melting and perforation of the workpiece surface with a layer of oil on the surface of a special liquid. Gasification and all kinds of materials, the material does not need to use the wind to blow the cut, but the upward or downward discharge also can form the deposition on the surface.

7. Sag and Corrosion

Sag and corrosion have adverse effects on the surface of the cutting edge, affecting the appearance. They appear in the error of the cut which is generally supposed to be avoided.

8. Heat Affected Zone

In laser cutting, the area near the notch is heated. At the same time, the structure of the metal changes. For example, some of the metals can be hardened. The heat affected zone refers to the depth of the area that is changed by the internal structure.

9. Deformation

If the cutting makes the component heat, it will deform. This is particularly important in fine processing, because the profile and connecting pieces are usually only a few millimeters wide. Control of laser power and the use of short laser pulses can reduce the parts to become hot, to avoid deformation.

Laser engraving or laser cutting is to converge the laser beam into a small spot through a focusing mirror and project it onto the surface of an object. The focal point reaches a high power density. At this time, the irradiated part of the material is quickly heated and vaporized, and the laser beam and the material move relatively linearly, so as to realize laser engraving cutting plans.

When the laser engraving machine or laser cutting machine is working for a long time, the optical path will deviate, which will affect the cutting effect. Only the perfect cooperation of laser tube, reflecting mirror frame (A, B, C), focusing lens and corresponding adjustment device can achieve the best effect and process the best projects. This is the core part of using CO2 laser machine. Therefore, it is very necessary to check the laser beam path and adjust it regularly.

8 Steps to Adjust and Align CO2 Laser Beam Path:

1. Turn on the air pump, the air flow is discharged under the trolley, and the wires on the X and Y axis drives of the right control box are pulled away.

2. Turn on the machine switch, the LCD display on the operation panel shows "The system is starting, please wait ..." At this time, the machine is in the reset state, wait for about half a minute, then the LCD displays: File name: AAA Processing speed 100% processing Power: 100/100% Processing quantity 1 Delete. At this time, the machine is in the initial online state.

3. Stick a round cardboard larger than the lens in front of the first reflective lens and the second reflective lens.

4. Put a large cardboard in front of the laser head of the tube, press the fire button on the operation panel, the laser tube emits light, and adjust the laser to the first reflection by adjusting the front and rear positions of the laser tube bracket and the thickness of the rubber under the tube The middle of the lens.

5. Adjust the laser to the middle of the second reflective lens by adjusting the three screw shafts behind the first reflective lens. When adjusting the second reflective lens, the X-axis beam should be moved to the front and back, the point where the laser hits Be completely coincident.

6. Adjust the laser to the hole on the left side of the laser head by adjusting the three screw shafts behind the second reflective lens. When the laser head moves to the four corners of the worktable, the laser must hit the middle of the hole.

7. Focus adjustment.

Focal length refers to the distance (4-4.2mm) between the top of the cone head under the laser head and the surface of the material.

8. By adjusting the tightness of the three screws on the mirror above the laser head, the laser can be adjusted to the vertical angle to ensure the verticality of the cutting surface when cutting.

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