I'm a little late, but I was catching up on my reading. The discussion on cooling fans was really interesting, especially since I need to make some changes to my setup. Has anyone tried using a computer slot fan to scrub the front surface of their mirror? It wouldn't work for a closed tube, but I was thinking it would work well for a truss tube scope. Here's an example of what I'm talking about.
http://www.outletpc.com/c1618.html
It has ball bearings instead of sleeve bearings and moves over 31 CFM of air. It might be a little noisy, though. I was thinking of putting these in 2 corners and aiming across the mirror, or maybe I could put one in all 4 corners and set them so they would "swirl"
Any ideas? Thanks,
Kevin
http://www.outletpc.com/c1618.html
It has ball bearings instead of sleeve bearings and moves over 31 CFM of air. It might be a little noisy, though. I was thinking of putting these in 2 corners and aiming across the mirror, or maybe I could put one in all 4 corners and set them so they would "swirl"
Any ideas? Thanks,
Kevin