Re: [ATM] Large Secondary

[Mike Lockwood <melockwo@uiuc.edu>]

Peter,

Peter wrote:
> I have a bit of a dilema and I'd like to ask your advice.
> 
> I'm making a large folded newt and I have aquired a low cost 7.25" minor
> axis diagonal (10.24" major axis) which when mounted at an 18 degree folded
> angle in my scope will create too large and non-uniform obstruction.
> 
> Can I cut one side of the diamonal on a professional diamond saw or will
> this action damage the overall optical figure. The mirror tests very well as
> compared to a good reference flat but I fear destroying this optic.

What is the substrate material, and how thick is it?
Have you checked it for strain?
What is the final flat size that you require?

	Mike Lockwood



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