Problem when engraving it's burning on some places

I have a problem with this project. Is a solution to improve the focusing of the laser?

What exactly is the problem you’re trying to solve? Kinda confused what I am looking at…

@CescoAiel thanks for asking. Some numbers are engraved correctly, as 1, 4, 7 or 11 on the metric side, but the rest are not engraved correctly and burned the material

Could you be buying twice in those spots?

Can you share the file ? Probably you have more than one layer ?

The file I am trying to engrave: https://drive.google.com/file/d/1XJVxsoercCtsfBAJjCiMKzKQmNWmeF-b/view?usp=drivesdk

@Juraj_Yurai_K-Turba https://drive.google.com/file/d/1XJVxsoercCtsfBAJjCiMKzKQmNWmeF-b/view?usp=drivesdk

As I said… for the number 3… there is 20 “mini-lines” paths.

@Juraj_Yurai_K-Turba Thanks for finding the problem. What do you recommend me to engrave it in paper, avoiding burning it?