LOL Unfortunately ours doesn't do clear, it's only the $50k one. You need the $80k one to print in polycarbonate. We also have an Objet printer, but I don't think we have clear material for it. I drew the ring for the '05s in SolidWorks and was going to try machining them on the lathe, but naturally never had time. The '07+ rings are different I believe, so I'm guessing the picture above is '07? The '05s have a series of ridges down the side rather than 1 big bump, and barely stay in on their own. Mine just about fall out if I turn the cluster over.
Shapeways has a semi-transparent printing material that may work, but it says 1mm wall thickness minimum. I don't have one in front of me, but I know that top thing is pretty thin.
"The Transparent Detail will actually arrive with a translucent finish. With hand polishing, however, a yellow transparency can be achieved. Please note, this material is brittle so the thinner you make the model, the more difficult it will be to polish without breaking your model."
I have mine double-sided taped down currently. (the EL sheet to the cluster, and the faceplate to the EL sheet) I haven't verified this, but it may even allow the needles to be a hair closer to the faceplate if the rings aren't present. (more space under the 'glass is preferred so the needles don't touch the underside of the glass..) Some seem OK, but others need a bit of extra silicone as a spacer, at least with the Harley needles.
2005 Chrome Orange Elise
Mod list: Stainless shift knob.