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Thread: Key sled for router

  1. #1

    Key sled for router

    I have a 1' by 3' piece of plywood with solid wood edging and mitered corners. I want to strengthen the miter joints with keys. My key jig for the table saw is too small. Seems I saw a jig once that uses a router and slot cutting bit to make just the key slots I need. Anybody has any ideas, thanks.

    DKT

  2. #2
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    Last edited by John Bartley; 09-22-2011 at 12:38 PM.

  3. #3
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    John, why is the key better/stronger than the mitered joint using the edging?
    Jon

    God and family, the rest is icing on the cake. I'm so far behind, I think I'm in first place!

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  4. #4
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    Interesting. I assumed he meant a key running the other way.

    Click image for larger version. 

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    The same jig idea could be used. I would be tempted to make a bigger jig for your saw and have it for next time(?).

    Click image for larger version. 

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    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

  5. #5
    Quote Originally Posted by glenn bradley View Post
    Interesting. I assumed he meant a key running the other way.

    Click image for larger version. 

Name:	dovetail-miter-key.jpg 
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ID:	58442

    The same jig idea could be used. I would be tempted to make a bigger jig for your saw and have it for next time(?).

    Click image for larger version. 

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    The key will be in the same plane as the plywood. Making a bigger sled for my TS is not an option, my garage is so cluttered with jigs, sometimes I don't know what I have. Thanks for the replies, it's just that the jig I seem to remember was so ingenious and just what I now need.

    DKT

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    Last edited by John Bartley; 09-22-2011 at 12:38 PM.

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    Like Glenn, I thought the keys would be across with an angle in them.
    I understand now John, thanks for the explanation. I hope I can remember that when I get to that type of project/skill level.
    Jon

    God and family, the rest is icing on the cake. I'm so far behind, I think I'm in first place!

    Host of the 2015 FAMILY WOODWORKING GATHERING

  8. #8
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    Quote Originally Posted by John Bartley View Post
    I don't think that having the key the way that I have it adds a lot of strength. What it did for me was allowed me to:

    1) add corner inserts with a slight tone contrast as well as a grain orientation contrast
    2) not worry about having a perfect mitre joint because I knew that I'd be filling the joint with the key
    3) know with certainty that the glue joints at the corner would be better than I am able to achieve with my current skill level.
    4) allowed me to use really scrappy wood without worrying about how moisture changes and clamping during the glueup would affect the alignment of the corners. What I used to make that panel was all scrap from the worst of my sawmill scraps
    Ooo, I like all those reasons I'm logging that idea in the old noggin' for future reference.
    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

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