Hi Bill, welcome to Laser Engraving and LightBurn.
First things first, grab yourself a cup of two of your favorite Non Acoholic beverage and settle in.
You need to learn your laser first. You didn’t describe the material you are trying to engrave.
I would HIGHLY recommend doing a “power Scale” on some test wood.
Once you have that, you create a box that’s the size of the wood you wish to engrave. Now, you also need to learn what centering is, absolute coordinates etc. are.
Once you know the basics you need to make sure the wood is in the right place to be engraved.
I can tell you, that with such a low powered diode laser you need to have your power at 100% and speed around 30 mm/sec or so.