Hi Joe
Many tools inside the Designer software that comes with the machine.
You change the spacing,font size,cut the letters or just crave them in the stock.
You can also slect the router bit you want to use..
The pictures below will show two or three ways to do it.
They will come out clean if you select the right bit and the board setting,.
you will also see a shot on the back side of one board, it shows the small holes/slots that help hold the letters in place, then once it's done you can just push out the letters out the stock.
It's a fun machine and it can do just about anything you want it to do.
But you must know how to use the software.
What you see is what you get (WYSIWYG) craved out,,