Hi Everyone,
Well my 8" f/4.65 mirror is up to the last stage and the most difficult part for us newbies, figuring!
This is my second mirror so I consider myself as a beginner and still learning as I go. My 6" f/5.6 mirror came out nicely although it took 4 goes to get the mirror right. Hopefully I shall not have to do that again and try to sneak up on it this time...
Ok here is some images of my tile tool and rosin lap and mirror (excuse the dust on the mirror, just dryed it with a old towel).
It was either going to be a ceramic or glass tile tool for grinding and decided to try the glass. Had very little problems with the glass and only got a few minor scratches at the 500 grit. I decided then to bevel the edges with a diamond dremel bit.
Had some problems with that lap as well but I got there in the end!
Just don`t use enamel or epoxy paint near the rosin as the paint will not cure!
Grinding time was around 20 hours (had a flaw near the edge that took forever to grind out)..and around 8 hours off polishing.
Also here are some images of the mirror before my first parabolizing strokes through my tester.
Feel free to give me suggestions and advice as I start getting into this! I know I will need some advice near the end!
Gary