It is always impossible to cut through. Finally, it has to be cut twice, and the effect is not good. How to adjust it?

Cause analysis:
① Whether the laser tube is aging.
② Check whether there are pollutants in the focusing lens.
③ Check whether the reflector is contaminated.
④ The light path is not right.
⑤ Whether the power output is reasonable.
⑥ Too fast.
⑦ The object is too thick.
Solution:
① Replace the laser tube.
② Clean the focusing lens.
③ Clean the reflector.
④ Adjust the light path.
⑤ ⑥ and ⑦ Adjust the power and speed.