How can I take model thumbnails with the same camera position and angle?

So, basically I have a building system, and have a ton of models that I need decal thumbnails of.

I've seen some others decals in games which I linked below where they have all the item thumbnails with the same position, camera angle, etc. I doubt they do these all manually... is there like a camera I can use to automatically put any model in frame at the same angle? Or how can I go about doing that?

Example: http://imgur.com/a/rW4lH