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  • Help with Blown out Mortise on Sjoberg

    Hi,

    I hope someone can give me advice, I'm a newbie who made a stupid mistake!

    I bought a Sjoberg 1660 workbench from Rockler. Two of the Mortise and Tenon joints for the legs were over-sized, the tenons length were over 1/10" over-sized. I hammered it in and it blew the side out. I chiseled out the other one. The pictures will show by not much, but even though it doesn't seem to be weak I want to be assured that the joint won't give out in the future plus it's right under the vise.

    So I'm looking for advice on how to secure this. I found a plate. that is 1/16" thick. I was figuring on using a plane to level the blow out and then chisel a mortise 1/16" for the plate.

    BTW, as I mentioned I bought this from Rockler, I'm happy with their service, I received it in less than 1 week and they did a great job in reinforcing the box. I originally bought the workbench from tool-corral.com. If you're interested read my review of this online store and be warned.

    Thanks,
    Phil
    Attached Files

  • #2
    Re: Help with Blown out Mortise on Sjoberg

    Not seeing what you are asking. Looks like you chiseled off the tenon?

    If the boards are not split you could chisel out 2 mortises and then create a separate tenon to join the boards

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    • #3
      Re: Help with Blown out Mortise on Sjoberg

      The blown out piece is the one with the mortise that received the tenon from the one on top of it.

      Phil

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      • #4
        Re: Help with Blown out Mortise on Sjoberg

        Got it. You will loose some of the mechanical strength provided by the M&T joint but most of the strength is provided by the glue. If you use a good quality wood glue you will be fine. You could drill holes and insert two 1/2" hardwood dowels down from the top of the joint

        Comment


        • #5
          Re: Help with Blown out Mortise on Sjoberg

          Agreeing with Wayne, here. As long as that blown out piece is solid - and I mean *solid*, you're OK but I would test it. Tap it with a hammer from different sides and be sure it doesn't move. If it does you should remove it, reglue and push it back in. Find a way to clamp or add weight to it and it should be all good. I wouldn't sweat the dowels. There's 90% of that joint still on duty.

          Later,
          Chiz

          Edit: I'm assuming that you plan to cut that blown out piece flush with the end.
          Last edited by ironhat; 06-20-2007, 09:11 AM. Reason: addition.
          Later,
          Chiz

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