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Thread: Compound drill shop project

  1. #1
    Supporting Member shopandmath's Avatar
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    Compound drill shop project

    Compound drill shop project
    with this video I show how to do the calculations for a compound angle for drilling
    using dimensions distance from top hole and bottom hole and height of block
    Video link

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

    marksbug (Dec 11, 2019), metric_taper (Dec 18, 2019)

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    Supporting Member marksbug's Avatar
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    I need to do some compound milling and drilling,Ill give this a good going over when Im ready to do it I just hope I can comprehend it....my brain aint all it used to be and memory is almost gone. I hope to get started on it by next summer...I hope. changeing angles of valve guides & seats in some of my new cylinder heads along with totaly reworking the valvetrain system with totaly massivly different parts. ( aircooled vw stuff getting nascar upgrades) years ago it would of been eazy, nowdays...not so much ,it's a good thing I have 5 new castings to work with.one to get it all right&figured. still have lots of welding to get done on them first. thanks for the post!!! I hope I can figure it all out.

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    shopandmath (Dec 13, 2019)

  5. #3
    Supporting Member shopandmath's Avatar
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    Thank you for your comments
    Ray

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    Supporting Member metric_taper's Avatar
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    Ray, does your shop have a compound sine plate? I picked one up a few years ago, it seems it would be used differently, then your example here where the 2nd axis is rotated but at the angle of the base sine plate. Am I wrong in this thinking?



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