Earlier I also like to do with eagle 3D.But after long time I thought it is a time wasting story when comparing with the final picture of the actual project.
I started using Eagle3D + POVRAY but I run into the same problem and I haven't had time to play with them again.
However, I succesfully placed through hole LED's and 2-pin terminal blocks on the (virtual) board. I don't think I had added parts to the libraries provided with the installation.
As far as the potentiometer is concerned, this part needs to be defined into a new library because it's not a standard part in Eagle. I've learned that from an **broken link removed** that provides the pot lib and include some nice pictures.
You just have to Google more. I've played with this a while ago. I don't think making your own items is an option unless your interested in 3D modeling, but you can go through the library and substitute the components that are 'most like' the component you want. I did this with some nichicon capacitors and a few items, but it's pretty time consuming. There's tutorials that show you how to link the models with the part names you are using.
please have the kindness to name some links. Not knowing the software and the relationship between the parts used in Eagle 3D and Eagle it is almost impossible to create a proper image.
I finally managed to get a fully populated board. However the connector pins are "built in" the wrong way. This PCB is supposed to be a piggy pack, and so the long end of the pins has to face down.
How did you manage to place the pins "upside down"?
Too bad Eagle does not support other 3D formats. POVRAY is cool but I learned another 3D tool. Be nice if we could convert somehow. I have a 3D converter tool but it does not support POV...