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Thread: Wood threads

  1. #1

    Question Wood threads

    For years I've been dreaming of cutting wood threads with shop made tools. The other day I saw Roy Underhill make a tap for cutting threaded nuts. This sparked an old interest. However I missed the show where he made the screw box. Has anyone made a screw box? If so, how? I'm going to give it a shot, but I like to learn from other's experiences, instead of trial and error. Is there a magical formula for thread pitch, and size for wood threads?
    Thanks...

  2. #2
    Quote Originally Posted by Scott Parks
    For years I've been dreaming of cutting wood threads with shop made tools. The other day I saw Roy Underhill make a tap for cutting threaded nuts. This sparked an old interest. However I missed the show where he made the screw box. Has anyone made a screw box? If so, how? I'm going to give it a shot, but I like to learn from other's experiences, instead of trial and error. Is there a magical formula for thread pitch, and size for wood threads?
    Thanks...
    Scott: J.R.Beall wrote a fun book "The Nuts and Bolts of Woodworking." I think if you will get it it will answer any question you might have. Sorry to be so late with this reference,I am a new member, lurking,reading the older threads.
    Bob Hawley

  3. #3
    Problem with threads is that when you need them, you need a lot of them. I'd buy a kit like mine, as sizing is real, real critical....especially in a humid climate like mine.

    I been making hand screws, vises, jigs and all manner of clamps since JR Beall first marketed his wood threader in the early 1980's and I couldn't be more delighted with it.

    Paid for itself in the sets of handscrews alone.

    I believe he even makes a 2-incher now for those big vises.









    Last edited by Bob Smalser; 12-13-2004 at 11:35 PM.
    “Perhaps then, you will say, ‘But where can one have a boat like that built today?’ And I will tell you that there are still some honest men who can sharpen a saw, plane, or adze...men (who) live and work in out of the way places, but that is lucky, for they can acquire materials for one third of city prices. Best, some of these gentlemen’s boatshops are in places where nothing but the occasional honk of a wild goose will distract them from their work.” -- L Francis Herreshoff

  4. #4
    Bob, Thanks for the pictures, especially the one showing the holder for the tap. I just bought a 1" X 8 tap to make wooden nuts to attach to glue blocks for my little Jet lathe. I used a speed handle with socket and reducer to drive the tap, but it was pretty shaky. I will build the handle that you pictured for my next bunch.
    What you do today determines what you can do tomorrow.

  5. #5
    Make them longer than mine, Don.

    Then when the threads are tapped, run a wet swab and water through there....let them dry...then tap again both forwards and backwards to iron and burnish those threads.
    “Perhaps then, you will say, ‘But where can one have a boat like that built today?’ And I will tell you that there are still some honest men who can sharpen a saw, plane, or adze...men (who) live and work in out of the way places, but that is lucky, for they can acquire materials for one third of city prices. Best, some of these gentlemen’s boatshops are in places where nothing but the occasional honk of a wild goose will distract them from their work.” -- L Francis Herreshoff

  6. #6
    Join Date
    Dec 2003
    Location
    Laguna Beach , Ca.
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    7,201
    Bob,

    That is great! I love special tecniques and hand made tools...great work!
    "All great work starts with love .... then it is no longer work"

  7. #7
    None of this is any big deal, but one feature of my working life is that very little hardwood or cedar ever sees the inside of a wood stove. I like to think when I harvest a tree, the angels smile.

    Get some cheaper glue than PVA....plastic resin is perfect.

    Lay up all your cutoffs and rip waste into something usable as part and parcel to your current project and set it aside for later.

    Long cedar rip waste becomes easels for my favorite school teachers...spring the uprights inward and lock in with a mortised shelf for that bent-wood "boatbuilder" look...



    ...or cut up for crossgrain drawer bottoms:



    Tapered cedar sawmill pith waste becomes Adirondac chairs done with a chain saw:



    Cedar slabs from the sawmill become trail benches:



    Maple rip waste becomes stable jig and tabletop stock:



    Scrap brass and trop hardwood waste becomes tools:





    Continued...
    “Perhaps then, you will say, ‘But where can one have a boat like that built today?’ And I will tell you that there are still some honest men who can sharpen a saw, plane, or adze...men (who) live and work in out of the way places, but that is lucky, for they can acquire materials for one third of city prices. Best, some of these gentlemen’s boatshops are in places where nothing but the occasional honk of a wild goose will distract them from their work.” -- L Francis Herreshoff

  8. #8
    Jigs:





    Almost all those handscrews and mallets are laidup from scrap:





    As are most all those rasp and file handles...some as many as 4 pieces:

    “Perhaps then, you will say, ‘But where can one have a boat like that built today?’ And I will tell you that there are still some honest men who can sharpen a saw, plane, or adze...men (who) live and work in out of the way places, but that is lucky, for they can acquire materials for one third of city prices. Best, some of these gentlemen’s boatshops are in places where nothing but the occasional honk of a wild goose will distract them from their work.” -- L Francis Herreshoff

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