http://www.shapeways.com/forum/index.php Shapeways: Bring your creativity to life in 3D http://www.shapeways.com/forum/index.php?t=rview&goto=49909&th=9901#msg_49909
Recently I met with a range of different technicians from a variety of establishments.

One tip from a German company was that during the dying process they put it in a vac chamber, this draws the dye deeper into the part.

Since i don't have a vac chamber to hand i cant test this.
But if any ones does, could they please post.]]> pdb 2012-06-16T09:16:03-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=49910&th=9901#msg_49910 Here's an Instructable for a DIY garden water hose powered vacuum chamber.
]]> stop4stuff 2012-06-16T11:36:53-00:00 http://www.shapeways.com/forum/index.php?t=rview&goto=49912&th=9901#msg_49912 Regrettably id had a few drinks by that point and didnt question him further on the process.

I'm going to suggest it when I visit another university next week.
See if i can give them a model and some dye, then let them have a test.

I presume they would have a way of agitating the dye while in the vac-chamber or perform a series of vacuuming and agitating separately.

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