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Wow.? We strip our mirrors at the NCA_CCCC ATM workshop in a very similar fashion to what they did in this video: -re-aluminization/ Seriously!!! Never thought to use mops, though. We tend to use cotton
balls instead. I just don't see any need for mops, somehow. Then again, we don't do very many 20-meter mirrors. The only things we don't do: add KOH to the CaCO3 solution use HNO3 afterwards. I'll try those. I was more than a bit surprised that it did not look to me as if they were wearing masks when using the HCl + CuSO4 step ('green river) or the HNO3. Maybe I wasn't looking closely. I always have fans on when we use that.kind of stuff; it hurts my nasal passages... Could anybody figure out what sort of towels those were? ? My blog, mostly on Education in DC: My home page on astronomy, mathematics, education: or else ?? ===================================== From: Kevin Quin To: Northern Virginia Astronomy Club Sent: Thu, January 13, 2011 10:36:45 AM Subject: Re: [NOVAC] Recoating a really BIG mirror There were PEOPLE on the mirror!? Okay, not what I was expecting.? Gives me a whole new perspective on cleaning optics. Kevin The Hole in the Trees Skybox --- On Wed, 1/12/11, Robert E. Ridgley <2102dex3624@...> wrote: From: Robert E. Ridgley <2102dex3624@...> Subject: [NOVAC] Recoating a really BIG mirror To: "'Northern Virginia Astronomy Club'" <novac@...> Date: Wednesday, January 12, 2011, 2:10 PM Thought these two links to videos showing the cleaning and recoating of the 6.5 meter primary mirror of the MMTO (Multiple Mirror Telescope Observatory, a joint facility of the Smithsonian Institution and the University of Arizona) at Mt Whipple in Tucson, Arizona would be interesting. Mirror cleaning and stripping, note the mops and paper towels: - re-aluminization/ Mirror recoating: General information about the MMTO if you are interested: Hope you find this interesting, Bob Ridgley _______________________________________________ This message was sent via the NOVAC mailing list, reachable at NOVAC@... [This message copy was sent to astrovienna@...] ? ? ? _______________________________________________ This message was sent via the NOVAC mailing list, reachable at NOVAC@... [This message copy was sent to gfbrandenburg@...] |
