I've done a bit of a browse through the IIS Forums searching for "3D Printing", and while a few threads pop up now and again (e.g. Meru's offer to print parts for people
http://www.iceinspace.com.au/forum/s...hlight=printer , which I didn't want to hijack), it seems there is no underlying "base-load" of content.
I built myself a Mendel Prusa 3D printer a couple of years ago, and I've used it to make myself a few widgets (including a few astro-related ones - replacement dust caps, cable-clips, a solar finder, a Bahtinov Mask, and so on), and a few bits and pieces for friends and colleagues.
It seems to me that the general geekiness / camaraderie of the 3D Printing community and Amateur Astronomy are very compatible, and I can't help thinking there might be a lot of pent-up interest within the astro-community, but many people aren't sure what 3D printing can do (and in particular, what are the limitations in terms of size, strength, precision, etc), how to create the models they need, and how to justify the initial investment (which is falling all the time, by the way!)
I guess I'd like to just "throw it out there" that if anybody has any questions, I would be more than happy to try to answer them, or print a sample (with no guarantee of fitness-for-purpose express or implied!)
I've got pretty good CAD modelling skills, so as long as you can describe what it is you are thinking of, and as long as it can be built with the biggest component able to fit in a 150 mm cube approximately, I'd be prepared to have a look at it. Small "widget-sized" samples can generally be provided free of cost (especially if you are able to provide a 3D CAD model, or the model is quick and simple for me to create from your sketch), but I'd be looking for some compensation for "large" models, and / or the cost of consumables if the sample is "useful", or if the item needs a far bit of engineering / design, or if you are looking at a "production run".
(And I'm sure there are quite a few other 3D printer owners who would be of a like mind.)