Focus on Astronomy Outreach Project www.focusonastronomy.org Sky-Watcher USA Product Specialist email@example.com
Quote:Hi all,Have a few big boys in the making...Including a 36" and 34".I am building two each with the second structure available.In addition to the 36 and 34, I also have most major components fabricated for a 30", 28" two 26"'s a 24" and two 20" sizes. All are the new Horizon design and can have any focal length up to F3.6. Smaller size are also available.Please contact me directly if interested.Thanks for looking,Mike
Orion XX14g, Orion XT8, 80mm Go Scope, 4.5 Starblast EQ
35mm Panoptic, 24mm ES, 14 & 10mm Pentax XW, 2.5mm Nagler
20 & 15 mm TV Plossl, 7mm Celestron Ortho
Orion Mini-Giant Bino 9x63
Couch-Potato Telescope (Bino Chair made by Sim Picheloup)
"For now we see in a mirror dimly..."
Quote:If the mirror is monolithic, why wouldn't back plate deformations be transmitted to the front through the spacer posts in between?
Quote:Hi Howie and Jarad,I think you both have valid points.I've gone through many of them in my head as well.Truth is...it's a big unknown. Another twist to the equation is that both front and back plates are slumped the same amount. So the back of the optic is curved, same as the front. This pretty much takes away all conventional cell point theory. With that said...All the specs for the cell have been provided by the owner, both cell points and edge support. I am building the cell to spec and take no responsibility for the performance of the optics. It was the only way I agreed to build the scope. The second 36” I building with this one is designed for a conventional 2.25” thick primary.Mike
.......Curtis MallinCam Extreme 2 + AT8IN + CGEM + Miloslick = WOW WO Binoviewers + Siebert OCA 1.25x-3.5x 10" OPT Starhunter (flocked & upgraded focuser) Celestron FirstScope 10x50 & 15x70 Celestron Bino's 2" 2x GSO Barlow
Quote: I agree that a good place for the responsibility of the number and location of the supports for a non standard mirror should probably be the mirror designers.
The opinions expressed herein are solely mine as an amateur astronomer hobbyist & consumer. Information herein was correlated from experience, discussions with others, & research from multiple sources freely available at time of posting. All reasonable care & skill was used, but no warranty is made as to accuracy, & liability cannot be accepted for errors/omissions. This is for information only and not intended nor implied to be a substitute for professional advice.