We discovered that flat material really matters when your laser is new/focused properly. Here is a little movie that demonstrates. (sorry about the sound and the shakes… I am learning!)
![](https://www.acemakerspace.org/wp-content/uploads/2019/12/bikeandflyes-1024x512.jpg)
We discovered that flat material really matters when your laser is new/focused properly. Here is a little movie that demonstrates. (sorry about the sound and the shakes… I am learning!)