The ACMER Ascarva 4S CNC Router is a standout precision engraver.

Before testing out the Carvera Air, my experience with CNC was limited to big, improbable-looking machines that use trim routers, the sort of thing you include when you're building a home workshop.

The digital fabrication industry continues to grow, and there's no better time to be a maker. Much has been written about 3D printing, but many DIYers have found more practical uses for CNC routers ...