Engraving calligraphy in wood isn't something that I do often for a few reasons. It can be unpredictable. If the wood is painted etc, who knows what color is underneath and will be unearthed during engraving. Also, depending on the wood, the drill may burn the wood yielding a black look. This may or may not be desired. However, when the universe is working with you, it can look pretty great.
The cutting board above is from a private engraving event where various people affiliated with a business will bring WHATEVER they would like to have engraved. It is quite literally a crapshoot on what will be presented. Anything from wood, plastic, glass, ceramics and metals will appear and it is necessary that I adjust depending on what comes my way. At the same event, I had the pleasure of engraving the glass dome of a dessert tray from Turkey. It sounds nerve-wracking but it is also great experience as I learn from these events every time. Such as... if you are presented with wood to engrave, don't use a marker for your calligraphy lines. Markers are a "no-go" :).
As always, engraving on the spot at an event is groovy and truly one of my favorite aspects of the job. Cheers!
Peace & Love while Slinging Ink®