Help with "Bent" Mortise and Tenon

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  • Betzalel
    20 August 2014 at 8:07 pm #61484

    Hi Woodworker Friend,

    Please let me know if you have experience with that sort of thing:
    I am doing a mortise and tenon between a steam bent chair back slat and its post. Should be a pretty common joint.
    I dont know if I do an angled tenon or if I do an angled mortise. I am thinking of angled mortise so to keep the tenon thicker and to keep the most of the grain straight. (not like at the photo)
    I am doing the mortise by hand so I guess I will just have to watch for that angle…
    Kind of hard to saw the tenons at such an angle
    Any tricks or ideas appreciated.
    Stram bent. How to layout and cut? Angled mortise or angled tenons? 10mm thick 1 inch long tenon

    Craig
    20 August 2014 at 8:31 pm #61485

    betz……,
    See here:
    http://paulsellers.com/2012/05/more-flawed-concepts-from-fw/
    best,
    Craig

    SW Pennsylvania

    Betzalel
    21 August 2014 at 12:14 pm #61496

    Thanks Craig
    Regardless of the in-line-or-not discussion, I still dont know how to start the cut of the tenons in the long grain/side of the thin part.
    I am thinking of knife walls and a lot of luck…

    Betzalel
    21 August 2014 at 12:16 pm #61497

    Thanks Craig
    Regardless of the in-line-or-not discussion, I still dont know how to start the cut of the tenons in the long grain/side of the thin part.
    I am thinking of knife walls and a lot of luck…
    The whole layout in such a small piece is also challenging
    (thickness 10mm, tenon +- 1in.)

    Craig
    21 August 2014 at 2:24 pm #61498

    betz……,
    I would suggest that you post some additional pictures of the project and maybe a hand drawn sketch of what you’re trying to do.
    This additional information should get some better responses than what I provided.
    Best,
    Craig

    SW Pennsylvania

    Betzalel
    21 August 2014 at 6:27 pm #61503

    Here, this is the idea, the back of a Morris chair but instead of making it from a thick board on the band saw, I steam bent it.

    Betzalel
    21 August 2014 at 6:31 pm #61504

    The question was how to start this awkward cut and how to layout properly since this is not 100% acurate. (much easier if I had done it on the band saw, but now…)
    image

    BNolan
    10 September 2014 at 1:53 am #76383

    Hi,
    I agree the angles tenon is the way to go. Rarely will you find an angled mortise which means one of two things probably. Either they didn’t work or the benefit was negligible and not worth the extra time to cut them. I think the latter.

    To answer your question about how to cut it….the cheek on the left looks pretty straight forward. You have enough on the end grain to get your saw cut started. On the right, nothing. For this one I would just cut your shoulder line per usual then pair down. No need to saw. Should take just a few seconds.

    Cheers

    Brian

    BNolan
    10 September 2014 at 1:55 am #76384

    Oops. Looks like I was a little late to the game. Didn’t notice the date.

    How’d they come out?

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