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Thanks Mark,
I shall do a 10min session tonight and see if it gets to the edge. I might do more over the centre stokes as well as the centre of the mirror seems deep enough. Shall warm up the house as well to get the lap working better!
Well the scope is just a pile of parts at the moment and still have to get a good focuser. So will have to put the mirror aside for a while till the scope gets finished then give it a test.!
Shall post another ronchi image tomorrow with the results...
I find it quiet exciting figuring and watching the shape change. Certainly is a art this!
cheers Gary
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