[aarongough]

Off topic: over the next couple of years I'm looking to develop a small-scale ion-beam coating system for applying DLC as part of a single-piece-flow process cell. I currently send out my products for DLC coating, and the coater does a good job but they keep making process changes (which affects color) without warning me, so I want to bring it in-house to avoid that and to eliminate the need to batch components for them.

I would release the design as open source after it's completed. Sounds like you have some knowledge in this area so let me know if you'd be interested in collaborating!