Hi, I'm also Dave. It's a good name. We'll try not to wear it out. You'll see me on the list as "Dave B."
One side of how I support myself is selling various automotive-related devices that I've built + have made. I am very familiar with things automotive and electrical. Not so much with CAD/CAM/robotics. Slowly learning.
If you need to get in touch with me either mail the list or blundar at gmail