Is there something in particular you are looking for? You've mentioned pilots. Can you be more specific.
And while this thread is about 3d printing, in a broader sense it is about how to get things made that aren't readily available from the big manufacturers. Depending on what you want to build, you might be better off making parts from photo etched metal. In the case of a pilot, rather than modeling the entire pilot area with pilot sheet, steps, and so on, instead create the parts from 2d components. While still needing to create cad artwork for the etches, it is all 2d instead of 3d. Much simpler, and the range of softwares that can produce 2d drawings is substantially larger than those with 3d capabilities. And I guarantee in the end it will be cheaper than creating the 3d cad model and 3d printing it.
Something to think about.
Jim
