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Jun 25, 2020· When they talked about building the fiberglass tube I was still with them, but when they got to mirror grinding I realized that it would be way beyond my level of patience., 08:02 PM #13. Paul Pless. View Profile View Forum Posts Private Message pinko commie tree hugger Join Date Oct 2003 Location Valley of the Sun ...

Grinding a 10" F/4 mirror for a first project

Home Made Mirror Grinding Polishing Machine Detailed Plan. Home Made Mirror Grinding Polishing Machine Detailed Plan. Kyc machine industry crusher wiring diagramin sri lanka.Recent country news blockchain blockchain appliions industry dynamics kyc know your customer onfido sri lanka 0 recently the central bank of sri lanka cbsl published a call for applicants to run a proof of concept for a ...

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Jan 28, 2014· Page 1 of 2 - Grinding a 10" F/4 mirror for a first project - posted in ATM, Optics and DIY Forum: Hello everyone, I am in the process of starting my first ATM project, a 10 F/4 Dob. I have read a ton of information concerning mirror grinding, and I have decided to grind the mirror myself. I have some quick questions on the suitability of an F/4 mirror for a first project; 1.

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This is a log of the mirror grinding I'm doing with my first 6" blank. Date Entry ; May 2, 2004 : Mirror appears to be either 100" or 105" radius of curvature using wet-mirror-and-flashlight test. The 105" reading came after 20 minutes more grinding on the blank than the 100", so I suspect one of the tests was done wrong.

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I would like to build my first telescope, and would like to try my hand at grinding the primary mirror. I've found a kit that claims to include just about everything I would need, but curious if anyone here has any experience with these or if it's best to source materials elsewhere?

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Get this from a library! Advances in abrasive technology : proceedings of the International Symposium : Sydney, Australia, 8-10 July 1997. [L C Zhang; N Yasunaga; University of Sydney.; Japan Society of Grinding Engineers.;] -- This volume aims to promote the latest advances in abrasive technology. Emphasis is placed on both the development of practical methods and the understanding …

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The problem is that only ceramic materials can stand the high temperatures of molten low expansion glasses. There is no release agent known which will prevent the glass from bonding to the mold.