I tried to in this post from your original.
If you don’t understand, then please specify what you don’t get and we’ll try to help you. Posting almost the same question more than once just slows down everyones response to this and other questions.
Most of the people that build these buy a source, this usually includes the light cable to the galvo head, from a separate manufacturer and the lens from a different manufacturer. There is a control board that someone else manufactured, driven by power supplies from a power supply manufacturer.
It might have a motor driver for using a rotary by a different manufacturer.
Again, it can have a very high peak output, but can only do it so fast. Spread that peak over time and you end up with an average.
Are you sure of it’s frequency?
