We have a company that utilizes 3D Printing in order to make architectural models. Therefore we incorporated 3D into our name. Our target audience are Architects, who use and prefer clear, classical logos.
It must me very aesthetic and simple. They very seldom use colours It should consist of a font-type that is clear, not curvy and not playful. As as the "3" stands for "free" it would be great if that is shown somehow. Please play with the font, with the positioning, with making certain words or letters fat. Maybe you can show the third dimension by the positioning of the words.
Attached you can find some tryouts that I made. I have played around a bit with the positioning of the words and I tried to make the 3D clear and also make the 3 look free. At the same time I always tried to be as simple as possible. Feel free to use any ideas and enhance them.