1. Laser engraving machine the light path adjustment
Tutorial

2. knowledge Light path adjustment is part of the machine maintenance
It is the debug part of the machine operation
It affects the precision of the carving
Also affect the depth of cut

3. Three points define a plane
knowledge
Our physics lessons learned:
Three points define a plane

4. knowledge
Laser engraving machine is installed three mirrors
Determine the carving plane
Install a focus barrel
Focused laser beam,Ensure engraving effect

5. knowledge The laser tube low voltage side
This is the first reflecting mirror
The laser tube low voltage side

6. knowledge
This is the reflecting mirror

7. knowledge Focus barrel The third reflecting mirror
Laser head can be divided into two parts
The third reflecting mirror
Focus barrel

8. knowledge
The dimming paper(Thin double-sided adhesive)

9. The first reflecting mirror
With three layers of the dimming paper
stick on the first reflecting mirror

10. The first reflecting mirror
press Pulse on the control panel
And observe the position of the light spot
Try to make it in the center hole of the bracket

11. The first reflecting mirror 第一镜架
If the light spot is not in the desired
position, please adjust the laser
tube bracket.
Adjust height by means of left
and right rotation
Move bracket inside and outside
by adjust hexagon screws

12. The second reflecting mirror 第一镜架
The second mirror optical path, that is Y axis optical path
Similarly stick the three layer light paper in front of second frames
And move the second frames until the nearest location to the first frame
MIN

13. The second reflecting mirror 第一镜架
press Pulse on the control panel
at the same time observe the
position of light spot

14. The second reflecting mirror 第一镜架
Don't touch the light paper
and then move the second
frame to the farthest position to the first frame
press Pulse on the control panel
observe light spot
MAX

15. The second reflecting mirror 第一镜架
Normally, if the light spot from the two Pulses are
coincidence, then the light path is correct.
What if the light spots are not coincidence ?

16. The second reflecting mirror 第一镜架
Adjust the first frame，to make the light spot on second frame coincidence
adjust the screw1
to adjust the light spot moving up & down
adjust the screw2
to adjust the light spot moving slantly
adjust the screw3
to adjust the light spot moving left and right

17. ① ② ③ The second reflecting mirror 第一镜架
Generally speaking, we only need to
adjust the first and third adjustable screws,
fix the second adjustable screws, you can
complete the adjustment of the light path. ① ② ③

18. The second reflecting mirror 第一镜架
the same as the first frame
the light spot on the second frame
is also trying to be in the middle of the
round hole in the block
Attention：don't shelter from the
light path.

19. The second reflecting mirror 第一镜架
The third reflector is in the laser head, its light path is X axis light path

20. The third reflecting mirror 第一镜架
Same as Y axis light path
Firstly, move laser head to the left-end position,
then press Pulse, and observe the light spot
on light paper
MIN

21. The third reflecting mirror 第一镜架
Second，move the laser head to the
top right,press pulse，
check if the the two light spot
is doublication, and if the light spot
be in the center of laser head round hole
MAX

22. The third reflecting mirror 第一镜架
If the Optical Path is correct, the two light spot
is doublication on the paper and in the center of laser head round hole.
If not correct
We should adjust the second mirror bracket

23. ① ② ③ The third reflecting mirror 第一镜架
Same ajustment with the first mirror bracket
adjusting screw1 ①
light spot will movingup and down
adjusting screw2 ② ③
light spot will diagonally moving
adjusting screw3
light spot will moving left and right

24. Laser head Finally Stick paper (a layer) to the laser head below,
then press pulse,
check the laser out from the conical head of laser head below

25. Laser head
Generally,
The light out from conical head will place a small round hole on the paper

26. ① ② ③ Laser head If need adjust here, need turn the screw
behind the third mirror
bracket ③

27. Let's review

28. First, the light out from laser tube beat on the first mirror bracket
Second ,the optical path of Y-axis,
then the optical path of X-axis
Finally, laser head vertical optical path

29. Notices
The laser tube low volt end don't touch the first mirror bracket, need 2-3cm safe distance
After adjust one mirror bracket, don't forget to fix each screw, To prevent Optical path change.
The first and second mirror bracket can move up&dow,left &right, The method is flexible
laser is not visible, please caution during operation, preventing burn body or clothes
Please be patient, careful, don't rush

30. Thank you