Welcome to O3D Miniatures on Shapeways. We specialise in 1/72 Military Miniature accessories for allied vehicles. We also offer some of our products in larger scales. You'll also find some useful sci fi model detail sets.
The new Grey and Ultra Clear Fine Detail Plastic is available now and looks promising. However a massive caveat is that parts tend to be warped, especially a problem for long thin shapes. I've found soaking in hot water (around 180 farenheit or 82 celsius) will do the trick. Do be careful as this temperature can scald your skin.