Here's my latest project. I just got the Roman's No.3 body back today from a machinist who drilled the hole out to 1.0 inch diameter. Just got done cutting it in half. Here's my QA inspector verifying my work:
I've always thought that the vane would probably be a cooling fan of some sort, so I used a precision ball bearing to allow it to spin. I'm not talented enough to motorize it.
Behind the clear gem is a 5 watt Luxeon LED, so batteries are not an option. The whole thing will be mounted on a stand with a base to house the 2 amp power supply and other lighting electronics. I have a couple of more months of work before I'll be done with this project.
ATL