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Thread: cutting an internal 6 spline drive

  1. #1
    Supporting Member thehomeengineer's Avatar
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    cutting an internal 6 spline drive

    Hi All

    On the crank shaft of my 3" scale Foden, that I am currently building there are two gears that move along this shaft. They are driven on six splines. The following link to my website shows how I cut the internal gears with a modified keyway guide bush I made and a standard keyway broach.
    I hope this is of interest and useful. I will also post a link to the crankshaft build in another post for those that are intrested.

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  2. The Following 8 Users Say Thank You to thehomeengineer For This Useful Post:

    Frank S (Jan 14, 2018), mr mikey (Jul 27, 2022), mwmkravchenko (Jul 27, 2022), PaulM (Jan 13, 2018), rossbotics (Jan 17, 2018), Seedtick (Jan 13, 2018), Sleykin (Jan 12, 2018), Tuomas (Jan 12, 2018)

  3. #2
    Supporting Member Frank S's Avatar
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    Nice job on the splines. Yes those large arbor presses are invaluable. I have one about the same size as yours I believe it has somewhere around an 8 or 10 inch stroke probably weighs close to 300 lbs

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  4. The Following User Says Thank You to Frank S For This Useful Post:

    mwmkravchenko (Jul 27, 2022)

  5. #3
    Supporting Member thehomeengineer's Avatar
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    Hi Frank S
    Thank you for getting in touch.
    The press is not very often used but when needed it is invaluable. I also have a 25ton Hydraulic press but it dosent have the same control and feel as this press for broaching etc. A dear friend gave this to me knowing how much I liked it.
    Is your the same design as I dont know the maker of mine?
    The Home Engineer

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    Thanks thehomeengineer! We've added your Spline Cutting Method to our Machining category,
    as well as to your builder page: thehomeengineer's Homemade Tools. Your receipt:




  7. #5
    Supporting Member Toolmaker51's Avatar
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    The common pattern of arbor press with a round ram is 'Greenerd', never saw one unmarked. The other premier arbor presses are 'Dake' and 'Famco'.
    Round rams are slightly more accurately guided, as they ride in a finished bore.
    Not heaviest tonnage because narrowed pinion to rack engagement.
    Confessions of long time arbor press addict



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