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I'd you look into the community that hand grinds and figures telescope mirrors, you can learn a lot about how which piece is on top and what motion you use infl
by mauvehaus 6y ago
I'd you look into the community that hand grinds and figures telescope mirrors, you can learn a lot about how which piece is on top and what motion you use influences the shape you get. Of course, they're going for a curved surface, not a flat one, but I suspect some of the same applies.
To be clear, I haven't done either :-)
- mhb 6y agoI have ground a mirror and that doesn't provide the answer to his question. Yes - the top glass becomes concave and the bottom convex, but this is symmetrical and doesn't explain what a control surface means in this context.