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Thread: Longworth Chuck Wanted?

  1. #1
    Join Date
    Jun 2012
    Location
    Laurinburg NC
    Posts
    316

    Longworth Chuck Wanted?

    I sort of think Id rather have a Longworth chuck rather than the Cole jaws. I know I could make this but I have made so many things lately I want to turn and not make something else....Any ideas on the Longworth chuck? pros or cons?

  2. #2
    Join Date
    Jul 2011
    Location
    The Gorge Area, Oregon
    Posts
    4,699
    Pros:
    • quick (quicker than the cole jaws)
    • Decent size flexibility
    • fairly simple to use


    Cons:
    • Somewhat slow to tighten (you have to tighten all of the bumpers one at a time in several passes), takes maybe 4-5 minutes to snug up a bowl. If all your stuff was the same size the cole jaws would probably be faster. If you're all variable size then the overhead of moving the bumpers on the cole jaws would quickly eat any savings.
    • doesn't grip as well as some other methods (I've launched a couple of bowls)
    • The rubber bumpers are sort of a consumable (long term cost of ownership). Depending on what you make them from they can break or snag (same issue on cole jaws though).
    • Only really works well with pieces that have enough lip (have used inside and outside just fine). Straight sided stuff doesn't "stick" so well
    • Lowish RPM, but not much worse there than most alternatives for the same purpose I guess.


    Overall.. B+ to A- will use again.

  3. #3
    Join Date
    Dec 2007
    Location
    Tellico Plains, Tennessee
    Posts
    4,352
    This the result of a failure of a homemade Longworth chuck failure... Click image for larger version. 

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    I think the Cole jaws are more secure.... but there are commercial versions of the Longworth available.
    Chuck
    Tellico Plains, TN
    https://www.etsy.com/shop/TellicoTurnings
    My parents taught me to respect my elders, but it's getting harder and harder to find any.
    If you go looking for trouble, it will usually find you.

  4. #4
    Join Date
    Oct 2006
    Location
    somewhere east of Queen Creek, AZ - South East of Phoenix
    Posts
    8,529
    I made one before but the first time i chucked something up in it i decided that it didn't grip enough for me so i nerver used it. Or else i miight have looked like chuck.
    "There’s a lot of work being done today that doesn’t have any soul in it. The technique may be the utmost perfection, yet it is lifeless. It doesn’t have a soul. I hope my furniture has a soul to it." - Sam Maloof
    The Pessimist complains about the wind; The Optimist expects it to change;The Realist adjusts the sails.~ William Arthur Ward

  5. #5
    Join Date
    Jul 2011
    Location
    The Gorge Area, Oregon
    Posts
    4,699
    I have a commercial version..

    To be clear I use it 95% of the time with tailstock pressure and only do some light finish sanding without. I've also been pretty careful to stand out of the line of fire with it (and do realize that that doesn't always save you). I also have a VS lathe, so I can carefully slowly ramp it up and STOP if anything looks untoward. I'm not sure I'd be as comfortable with it on a non VS lathe.

  6. #6
    Join Date
    May 2009
    Location
    sydney australia
    Posts
    149
    I own two that I have made with no problems. But they do have thier cons and you must work within these. I use them for doing the bottom of bowls and little else,plus they are for light cuts. As for grippers try and get some PU or Polyurethane it comes in various duro or shore numbers of hardness and is long lasting with minimal wear.
    Hughie


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