Generic may be fine, but since the 3d printing world is not all that small anymore you may look into a more specific domain name targeted to appeal to a more specific customer base. That would be my advice, or to devise a creative name related to your business but not literally referring to it. It may generate much more attraction and recognizability. I'm a designer and go to websites called Boingboing, Wired, PinkTentacle, it works much better than having to refer to a bunch of generic names.

Another tip is to do what they did at Grounded, you turn the last e into a 3 -> Ground3d. Or leave out a vowel - printr, makr. Just make sure it also looks appealing as a word.