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telescope
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Boring A Long Tube
Guys I have one last boring operation to perform on an aluminum tube for my Crayford style focuser. Photo of my 99% finished Crayford focuser (minus anodizing) is below and the tube in question is at the top. It is about 4" long and has a rough ID of 2". My lathe is Grizzly G4000 and the...- prasad
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- atm boring crayford focuser telescope
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