[ATM] hogging out

["Frans Franssen" <f.franssen@planet.nl>]

Mike and Bob
 
Thank you for your reactions to my question. I think I will follow Mike's
advice to alternatively grind MOT and TOT, because I am familiar with that
way of working. The mirror's material is Schott glass from Germany, sort of
pyrex. Taking Bob's advice I would probably have to make a plaster tool for
the fine grinding stages. Working with an iron flange or pipe end cap seems
too risky to me, although I have noticed that  lots of people hog out their
blanks that way. Seems to me that method is for more experienced mirror
makers. I'll let you know how I get on in the course of next year. Thanks
again for your help.
 
Frans
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