Inventor of the Herschel Wedgie. Watch your back.
Astronomy - The World's Second-Oldest Profession.
"You don't know Swift from Astrola." -C.H.-
Quote:My goal is to remove the fans from contact with the scope to prevent vibration. The air multiplier would allow doing just that. I was also thinking of an easier to build compressed air distribution system (nozzles and tubing) with a small air reservoir and compressor located off scope. The compressed air nozzles would be located around the mirror to homogenize the boundary layer and no need for ducting or a closed tube.
Donny 18" Obsession f4.5 #347 12" Lightbridge, Red CR2/OWL Refigured Primary Protostar 3 vane w/ 1/15 secondary Nexstar 130SLT Fujinon 8X42 CD
Quote:I've been experimenting with this type
15" Obsession #1603 AstroTech AT66
Quote:Chuck, please do post.
Quote:"Be patient with" you? That is fantastic work and design. Thanks for sharing. I don't understand the relationship of the allen screws to the ball bearing pivot. Any link on the hardware used?
-DannyMy warehouseMy Channel
Quote:That's a great idea for larger, more massive mirrors, Don. It's the same solution used for coupling slightly mis-aligned shafts. Not truly "floating", but it does allow some pivot motion.
Stiction doesn't seem to be a problem with these smaller mirrors. A little graphite keeps the float pad loose enough. A similar mechanical pivot on my old Novak 17.5" cell is still moving freely when it has to.
We've really sidetracked from the OPs question, lol.