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Thread: tenon removal technique

  1. #1

    tenon removal technique

    i used this last night

    i turned a fairly large platter (11.5") and couldnt turn off the tenon

    i was discussing this with a friend and he said use a router bit in the drill press

    i put a 5/8" bit in the drill bress and changed the belts to the fastest speed

    i put a piece of lexan on the table to protect the surface of the piece you are working on

    adjust the drill press down to remove less than 1/8" of material at a time

    lock the quill and turn on the drill press and slowly move the piece into the bit to remove material

    and i just would keep adjustinthe drill press quill down to remove all of the tenon and to even up the base of your project

    cliff notes
    remove a tenon by using a drill press as a bridgeprt milling machine

    i can get pictures on my next one if anyone is interested

  2. #2
    Join Date
    Dec 2004
    Location
    Indianapolis IN
    Posts
    244
    I would be interested in seeing pictures. Being new to turning, I wonder if this would be a good way to get the bottom of my bowls completely level.
    There are two kinds of people in this world, those who say there are two kinds of people and those who don't

  3. #3
    Chris,

    Nice technique. I'm still partial to the the jam chuck method myself. although for platters its hard to get it to jam.

    Good luck
    Keith
    _________________________
    Still burning and turning
    the candle from both ends.

  4. #4
    Join Date
    Aug 2004
    Location
    Dayton, TX
    Posts
    3,173
    Absolutely send some pictures.

    Ernie

  5. #5
    ok here are the pictures i promised
    setting up to make the cut


    first pass


    Yes that bit is running

    tenon gone still a grove though


    taking off more material


    finished product


    any more questions?

  6. #6
    Join Date
    Feb 2003
    Location
    Griswold Connecticut
    Posts
    6,926
    Chris. I'm not a turner, but I caught up with your post. That's a gtreat technique. If I can suggest one possible refinement. A bowl bit might possibly be a better choice. It has a constant radius and a flat bottom, ergo no 90deg. edge like a straight bit. It works great as a surface planing bit in a trammel mounted router also. just a thought

  7. #7
    you can do this easily on the lathe, just turn the bowl around, cushion a chuck or make some fixture and tighten down, jam it in and turn away most of the tenon. just leave a little nubb, remove ith chisel and sand a bit.
    personally i use a vacuum chuck, works awesome.

    the drill press and routerbit seems to be a good idea, but what make a bowl beautyful is a nice shape and finish of the bottom.
    anybody who ever touches a bowl, always turns it around.
    sascha

  8. #8
    Quote Originally Posted by sascha gast
    you can do this easily on the lathe, just turn the bowl around, cushion a chuck or make some fixture and tighten down, jam it in and turn away most of the tenon. just leave a little nubb, remove ith chisel and sand a bit.
    personally i use a vacuum chuck, works awesome.

    the drill press and routerbit seems to be a good idea, but what make a bowl beautyful is a nice shape and finish of the bottom.
    anybody who ever touches a bowl, always turns it around.
    sascha
    the original problem i had was on a platter i did it was 11.5 " in diameter ( my lathe is a 1236 ) so i couldnt use my cole jaws on it and that was an easy way to remove the tenon

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