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Thread: Dividing Head To Harold Halls Design

  1. #1
    Retired Old Phart DonRecardo's Avatar
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    DonRecardo's Tools

    Dividing Head To Harold Halls Design

    Hi ,
    I just finished making my dividing head to Harold Halls Design amd I am quite
    pleased with how it turned out as it allows me several ways to do division

    Firstly I can do direct division using a gear wheel

    Dividing Head To Harold Halls Design-d-gear.jpg

    or I can do direct division using a dividing plate

    Dividing Head To Harold Halls Design-d-div-plate.jpg

    and of course I can do compound division using the gear and worm with a dividing plate

    Dividing Head To Harold Halls Design-compound.jpg

    Unlike a normal dividing head that has a fixed 40:1 , 60:1 or 90:1 ratio I can simply chage the gear wheel
    and have any ratio I want which then gives me more choices for divisions

    The nose is made to fit Myford 3 or 4 jaw chucks, . My ER32 collet chuck holder and also has an internal
    morse 2 taper so I can fit morse taper tooling

    Dividing Head To Harold Halls Design-nose.jpg

    The didviding end can be swung around to any convenient angle

    Dividing Head To Harold Halls Design-pos-1.jpg
    Dividing Head To Harold Halls Design-pos-2.jpg
    Dividing Head To Harold Halls Design-pos-3.jpg

    Here is a view of the other side

    Dividing Head To Harold Halls Design-rear.jpg

    The plans are available in the Workshop Practice Series book number 37 " Dividing "

    I really Like Harolds Designs and have made several , I intend to make his tapping stand next

    Don

  2. The Following 4 Users Say Thank You to DonRecardo For This Useful Post:

    Jon (11-10-2016), Paul Jones (11-05-2016), PJs (11-05-2016), Toolmaker51 (11-05-2016)

  3. #2
    Paul Jones's Avatar
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    Don,
    Very nice craftsmanship and a versatile design with being able to change ratio the gearing. Thank you for posting your work and providing excellent photos.
    Paul

  4. The Following User Says Thank You to Paul Jones For This Useful Post:

    DonRecardo (11-07-2016)

  5. #3
    Metaler's Avatar
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    Metaler's Tools
    Well Done Don, looks like you have made a better job than the original. For me it is encouraging to see it being made, as I consider it to be one of my best, maybe even the best, designs, though I have only been aware of a very small number being made. Having made the video of it there are signs of more taking up the design.

    Should anyone reading this thread be interested the video of it is at this page Dividing Head. Full Function on the forum.

    Harold Hall

  6. The Following User Says Thank You to Metaler For This Useful Post:

    DonRecardo (11-07-2016)

  7. #4
    Toolmaker51's Avatar
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    Toolmaker51's Tools
    [QUOTE=DonRecardo; The plans are available in the Workshop Practice Series book number 37 " Dividing ", I really Like Harolds Designs and have made several, I intend to make his tapping stand next. Don[/QUOTE]

    As long as you are planning several, and producing such enviable results...
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  8. The Following User Says Thank You to Toolmaker51 For This Useful Post:

    DonRecardo (11-07-2016)

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    Content Editor DIYer's Avatar
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    Thanks DonRecardo! We've added your Dividing Head to our Measuring and Marking category,
    as well as to your builder page: DonRecardo's Homemade Tools. Your receipt:





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