If the optical path is misaligned, the optical path should be realigned.
Signs of misaligned optical path :
1. engraved patterns will be deeper to lighter in a certain direction
2. the cut section is not vertical after cutting.
Preparation Items :
Included in the accessory box:
1 | 2.5mm hexagonal wrench
2 | Torx screwdriver
3 | Double head wrench
4 | Double-sided tape
Alignment Instructions :
1. The Y-axis direction is related to the first reflective mirror. After the first reflective mirror is correctly adjusted, the laser spot got at bottom left position should coincide with that got at top left position. When adjusting the first reflective mirror, put the double-sided tape on the second reflective mirror.
2. The X-axis direction is related to the second reflective mirror. After the second reflective mirror is adjusted, laser spot got at middle right position should coincide with that got at middle left position. When adjusting the second reflective mirror, put the double-sided tape on the third reflective mirror.
3. The Z-axis direction is related to the third reflective mirror. After the third reflective mirror is adjusted, the laser spot should be in the center of the laser outlet. When adjusting the third reflective mirror, put the double-sided tape on the laser outlet.
1. Do not open the door cover when laser pulsing is in progress, otherwise, the laser will not emit light due to the protection mechanism.
2. When aligning the optical path, the “Power” can be set to x0.50 in the “MAINTAIN” page to avoid the laser spot being too large to judge the laser spot offset direction precisely. When the alignment is completed, the “Power” needs to be restored to the original power setting of x1.00 to avoid insufficient power during use.
3. If there is an abnormal cracking sound when starting the laser pulse, please disconnect the power and stop using it immediately. 【Troubleshooting】 No Laser Beam Output.
4. Please use the Torx screwdriver to remove the 6 screws on the back cover and then remove the back cover.
5. Since there are threadlockers on the nuts of the first and second reflective mirrors fixing mirror adjustment screws, dropping a small amount of alcohol on those nuts is suggested to soften the threadlockers before turning the nuts.
Video Instruction
Alignment Steps:
Laser tube
Target : To confirm the laser spot is on the first reflective mirror.
Method :
1. Remove the back cover : Please use a Torx screwdriver to remove the 6 screws on the back cover and then remove the back cover.
2. Paste the tape : Take a piece of double-sided tape and paste it on the round metal frame of the first reflective mirror.
3. Obtain laser spot on the first reflective mirror : Close the door cover > Click the “MAINTAIN” on the screen > Click “Laser Pulse” > Open the door cover > Make sure the laser spot is within the mirror, avoiding the frame of the mirror.
First reflective mirror
Target: To make the bottom left spot coincide with the top left spot.
Method :
1. Release the motors and paste the tape: Click the “MAINTAIN” of the machine to finish the homing > Click "Motors" > Take a piece of double-sided tape and paste it on the metal frame of the second reflective mirror.
2. Obtain the top left laser spot: Move the laser head to the top left manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm the laser spot position. You need to observe how the next (bottom left) laser spot moves.
3. Obtain the bottom left laser spot: Move the laser head to the bottom left manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm whether the bottom and top left are overlapped at the same position and avoid the reflective mirror frame. As shown in the picture above. If the laser spots are not completely overlapped, adjust the mirror adjustment screw behind the first reflective mirror ac- cording to the direction of laser spot movement, so that the bottom left laser spot position moves to the top left laser spot position.
4. Adjust the first reflective mirror: Drop a small amount of alcohol on the
nut to soften the thread locker > Use a double head wrench to loosen the nut without turning the mirror adjustment screw > Tighten or loosen the mirror adjustment screw according to the direction of laser spot movement (control direction explained later) > Repeat steps 2, 3, 4 until the bottom left laser spot overlap with the top left laser spot (if you can no longer determine the direction of laser spot movement, you need to reapply the double-sided tape) > After finishing the adjustment, tighten the nut without turning the mirror adjustment screw.
After confirming that the bottom and top left spots coincide and avoiding the reflective mirror frame, adjust the second reflective mirror.
Tightening or loosening screw is equivalent to adjusting the angle of the reflective mirror.
-
When turning the yellow screw, the red and green screw link can be considered as the axis of rotation.
By tightening the yellow screw (clockwise), you can think of pushing the mirror from the upper left with the red and green as the axis, and the laser spot will move down to the lower right. Loosening the yellow screw (counterclockwise), you can think of the red and green as the axis to move the mirror backward in the upper left, and the laser spot will move up to the upper left. -
When you turn the green screw, you can think of the yellow and red screw link as the axis of rotation.
By tightening the green screw (clockwise), you can think of the yellow and red as the axis to push the mirror from the upper right, and the laser spot will move to the left. Loosening the green screw (counterclockwise), you can think of the yellow and red as the axis to move the mirror backward in the upper right, and the laser spot will move to the right. -
When turning the red screw, think of the yellow and green screw link as the axis of rotation.
By tightening the red screw clockwise, you can think of the yellow and green as the axis to push the mirror from the lower left, and the laser spot will move up. If you loosen the red screw (counterclockwise), you can think of the yellow and green as the axis to move the mirror backward in the lower left, and the laser spot will move downward.
Second reflective mirror
Target: To make the middle right spot coincide with the middle left spot. Method:
1. Paste the tape: Take a piece of double-sided tape and paste it on the round metal frame of the third reflective mirror.
2. Obtain the middle left laser spot: Move the laser head to the middle left
manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm the laser spot position. You need to observe how the next (center) laser spot moves.
3. Obtain the center laser spot: Move the laser head to the center manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm whether the center and middle left overlap in the same position. You need to ob- serve how the next (middle right) laser spot moves.
4. Obtain the middle right laser spot: Move the laser head to the middle right manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm whether the spots overlap in the same position. If they are not completely overlapped, adjust the mirror adjustment screw behind the second reflective mirror according to the direction of laser spot movement, so that the middle right laser spot position moves to the middle left laser spot position.
5. Adjust the second reflective mirror : Drop a small amount of alcohol on the nut to soften the thread locker > Use a double head wrench to loosen the nut without turning the mirror adjustment screw > Tighten or loosen the mirror adjustment screw according to the direction of laser spot movement (control direction is explained later) > Repeat steps 2, 4 and 5 until the middle right laser spot overlap with the middle left laser spot (if you can no longer judge the direction of laser spot movement, you need to reapply the double-sided tape) > After finishing the adjustment, tighten the nut without turning the mirror adjustment screw.
6. Confirm the spots of the middle right and the middle left overlap : Take a piece of double-sided tape and put it on the golden frame of the third reflective mirror > Repeat steps 2 and 4 to confirm the overlap of the middle right and middle left spots and avoid the reflective mirror frame, then fine-tune the laser head assembly position so that the overlapping spot is located on the perpendicular line of the round metal frame (black solid line area in the figure).
7. Fine-tune the laser head assembly position : Use a 2.5mm hexagonal wrench to loosen the 4 hexagonal screws on the X-axis linear rail that hold the laser head assembly in place > Move the laser head forward or backward depending on the position of the spot > Roughly tighten the 4 screws > Move the laser head to the center manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Confirm that the spot is on the perpendicular line > Move the laser head to the chassis front > Click “Camera” and make sure the upper and lower edges of the camera are parallel to the machine chassis > Fix the 4 hexagonal screws of the laser head assembly. After confirming that the middle right and middle left spots are on the perpendicular line of the round metal frame, you can adjust the third reflective mirror.
Third reflective mirror
Target: To make the laser spot hit the center of the laser outlet.
Method:
1. Adjust the height of the laser head : Turn the golden nozzle fastening ring off > Adjust the height of the laser head so that the focus probe touches the honeycomb table > Turn the focus probe back > Tighten the golden nozzle fastening ring.
2. Paste the tape : Take a piece of double-sided tape and put it on the laser head outlet > Gently press the double-sided tape to make a circle of laser head outlet indentation on the tape's adhesive surface.
3. Obtain the center laser spot: Move the laser head to the center manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Make sure the laser spot is in the center of the laser outlet. If it is not in the center of the circle, you need to adjust the mirror adjustment screw behind the third reflective mirror according to the position of the spot.
4. Adjust the third reflective mirror: Use a double head wrench to loosen the nut without turning the mirror adjustment screw > Tighten or loosen the mirror adjustment screw according to the direction of the laser spot movement (the control direction is explained later) > Repeat steps 3 and 4 until the laser spot falls in the center of the beam outlet (if you can no longer judge the laser spot move- ment direction, you need to reapply the double-sided tape) > After finishing the adjustment, tighten the nut without turning the mirror adjustment screw.
The adjustment method is different from the first and second reflective mirror, because the position of the mount under the third reflective mirror is fixed, so when the screw is tightened, the mount will not move, but the reflective mirror will be ejected.
- When turning the yellow screw, the red and green screw link can be regarded as the axis of rotation.
Tightening the yellow screw (clockwise), you can think of moving the mirror back- ward in the upper right with red and green as the axis, and the laser spot will move to the upper right. Loosening the yellow screw (counterclockwise), you can think of the red and green as the axis to push the mirror from the upper right, and the laser spot will move to the lower left.
- When turning the green screw, the yellow and red screw link can be regarded as the axis of rotation.
Tightening the green screw (clockwise), you can think of moving the mirror back- ward in the upper left with the yellow and red as the axis, and the laser spot will move to the left. Loosening the green screw (counterclockwise), you can think of the yellow and red as the axis to push the reflective mirror from the upper left, and the laser spot will move to the right.
- When turning the red screw, the yellow and green screw link can be regarded as the rotating axis.
Tightening the red screw (clockwise), you can think of moving the mirror backward in the lower right with the yellow and green as the axis, and the laser spot will move downward. Loosening the red screw (counterclockwise), you can think of the yel- low and green as the axis to push the reflective mirror from the lower left, and the laser spot will move upward.
After completing the above adjustments, you can ensure that the laser beam out- put is uniform at any location in the working area to achieve normal working re- quirements. Please perform "Calibrate Camera" again before use. 【Beam Studio Tutorial】 Camera Calibration.
If the laser beam output verticality is strictly required, you can further adjust the verticality of the optical path.
Advanced adjustment :
Verticality of the optical path (selective adjustment)
Target: To adjust the laser spots obtained from the golden nozzle fastening ring and from the laser head outlet to the center of the circles.
Method:
1. Paste the tape : Take a piece of double-sided tape and paste it flat on the golden
frame of the third reflective mirror.
2. Get the center laser spot : Move the laser head to the center manually > Close the
door cover > Click “Laser Pulse” > Open the door cover.
3. Measure the center offset value : Measure the distance between the center of the
spot and the center of the frame, x (mm). The laser spot should be located at the top of the perpendicular line of the metal frame (as shown in the picture above). If the position is incorrect, please contact your reseller.
4. Move the third reflective mirror: Loosen the nut, use a double head wrench to loosen the nut holding the mirror adjustment screw > Adjust the 3 mirror adjustment screws so that the third reflective mirror and the triangular mirror holder are parallel and have x (mm) spacing (as shown below).
5. Take the honeycomb table out: Move the laser head to the upper left of the working range > Reach the front of the machine, lift the honeycomb table up and pull it out.
6. Adjust the third reflective mirror: Refer to the method of "third reflective mirror" and adjust the laser spot to the center of the laser outlet again.
7. Paste the tape: Unscrew the golden nozzle fastening ring and remove the laser head > Take a piece of double-sided tape and paste it flat on the laser head socket, gently press the double-sided tape so that there is a socket indentation on the adhesive side of the double-sided tape.
8. Obtain the center laser spot: Move the laser head to the center manually > Close the door cover > Click “Laser Pulse” > Open the door cover > Observe the spot position and move the third reflective mirror as appropriate.
9. Move the third reflective mirror (as shown below) :
a. The laser spot is in the center of the laser head socket, which means the optical path is vertical and does not need to be adjusted.
b. If the spot is to the right, reduce the parallel gap of the reflective mirror and loosen the 3 mirror adjustment screws by half a turn, then repeat steps 6-9 until the spot is in the center of the laser head socket.
c. If the spot is to the left, increase the parallel gap of the reflective mirror and tighten the 3 mirror adjustment screws by half a turn, then repeat steps 6-9 until the spot is at the center of the laser head socket.
After the adjustment is completed, please run "Calibrate Camera" first and then use the camera preview. 【Beam Studio Tutorial】Camera Calibration.
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