:With the 120 grit and on, the 1/3rd stroke :(that's total length of stroke/diameter of :mirror) with 1/3rd overhang (1/6th to each side) :needs to be held to more rididly for a max. :stroke.

Thanks Robert. I'm not sure what your comment "...held to more rigidly for max stroke" means. Are you saying that I need to be more precise with the 1/3 W stroke. Can you clarify?

Also, I see another post (Posted by John Suback on June 13, 1999) that seems to address my problem. The advice was to put the tool on top and flatten out the curve since the needed depth was already achieved but the mirror was not pitted all the way to the bevel.

I too have reach desired depth. It sounds like I should do the same.

Thanks for the reply. You seem to keep this forum alive almost by yourself. It has been very helpful. : I too have reach desired depth. It sounds like I should do the same. : Thanks for the reply. You seem to keep this forum alive almost by yourself. It has been very helpful.

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• Re: Rough grinding leaves smooth edge - bobmay - September 6, 1999 - 18:03 UTC
  • Re: Rough grinding leaves smooth edge - Brian_Matthiesen/">Brian Matthiesen - September 6, 1999 - 22:22 UTC