Laser engraving is pretty cool.
However, it has obstacles.
The biggest obstacle is engineering stubbornness.
Let’s take a look how getting mentally stuck inside the box holds us back.
Laser engraving with common GRBL controller is known to be sloooow.
Some folks claim that STM32 controllers are faster.
So I have got one of those and did a bench test.
Here is the board.
Spoiler: result was unexpected, but you can probably guess that by my bitterness in the introduction.