Engrave outside lettering

Hi guys , I want to laser engrave the surrounds of a letter leaving the letter the original surface of the timber ,
I just want to engrave around the letter
Thank you

If you set the infill of the type to None, it will only engrave the outline of the text.
Instead, if what you’re looking for is a full rectangle of burn, with unburned text inside, then (using a external image editor) you’ll have to make a black rectangle with white text, flatten it to a image file (png or the like) and import that and burn it.