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  1. C

    Old Sheffield 9.9.7 Retrofit w/ New Renishaw Hardware vs New CMM.. Thoughts?

    Debating on whether on not CMM retrofit is a good option for our current set-up Our existing CMM is a 2004 Sheffield 9.9.7 CMM with PC DMIS. Support and availability of replacement boards for our machine is becoming scarce so we are looking to upgrade. I had originally been resigned to buying a...
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    Flatness problems on 6061-T6 aluminum

    Does anyone have any tips or tricks on maintaining tight flatness requirements on 6061-T6 (or T6511) aluminum? Parts are generally around 12"x 12" and at least .100" thick on the majority of the part. Most have pockets and or ribs so lapping is not an option for most. I normally see .002-.003"...
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    Looking for Input on Milling Hardened 440c (56-59RC)

    Out of curiosity, does anyone have experience/input on milling 440c after it has been hardened? Final hardness will fall between 56-59 Rc for the heat treat spec I am held to. Working on a job that has a tuning fork feature that is .600" long with a .300 +/-.001 gap in between. Since each prong...
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    +/-.0001 Dia Hole in Titanium giving me trouble

    Working on 1 piece order for a titanium piece that calls for a .1249 +/-.0001 x .600 deep thru hole. Material is 6AL-4V titanium hardened to 42RC. I have been going with .118 start hole. Tried a few different reamers but all of them have been cutting oversize. Started at 1400RPM 4.2IPM. Backed...
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