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Thread: Grayson lathe screwcutting chart

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    Canobi's Avatar
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    Grayson lathe screwcutting chart

    Hi folks

    Documentation is vey scarce for the Grayson, no user manual was ever put into print, what was printed was largely reserved for sales so the screwcutting chart was the only document to ship with each new machine.

    Unfortunately, the charts don't seem to survive the ages as well as the lathes do, so I was mighty surprised to see a chart included with the sale of a Grayson on eBay just the other day, albeit in an almost unreadable condition.

    As it happens, I fiddle around with graphics from time to time, so I took a screen grab and attempted to clean up the image enough to share after treatment but that didn't work out. I could read the words and numbers (better anyway, still some bad areas that needed close attention) but the oil marks were impossible to remove without effecting what I had made readable as the blotches were the same colour as the writing. So I've re-created the chart in it's entirety as close to its original format as I'm able, bar the short notes at the base which were too worn in too many places to make out with any level of certainty.

    Still, as a relative noobie to machining, screwcutting is something I've yet to try on my lathe due to the lack of said chart and as I know there are other Graysons still spinning away cutting chips, I'm sharing my effort in the hope it will help them as it has me
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    Last edited by Canobi; 02-23-2018 at 03:01 PM.
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    Sorry folk, just spotted a slight error with the fine feed numbers, fixed now so have replaced the PDF with the updated one.


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