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  1. #1
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    May 2016
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    Default How would one achieve the inside angle of these legs?

    I was hoping to get some ideas how to make the inside edges of these table legs.

    Thanks in advance.

    1.jpg2.jpg

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  3. #2
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    Jul 2003
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    Riverhills, Brisbane
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    I would try a Cove Router bit

    cove-router-bit.jpg

  4. #3
    Join Date
    May 2016
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    Melbourne
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    Default

    Do you think the legs have been made then routed or routed first then joined?

  5. #4
    Join Date
    Oct 2014
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    Caroline Springs, VIC
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    1,645

    Default

    I would make the square mitered frame first. Then I would use a chamfer bit in a router, something along the lines of Carbitool "T 8110 B 1/2". Chamfering the first edge is easy because the other edge is still square. But routing the second edge will require the bearing guide to run along the now chamfered first edge which will create a slightly deeper cut. I use layers of masking tape to temporarily build up the first edge again so the bearing guide runs along at the same depth.

  6. #5
    Join Date
    Nov 2005
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    Darkest NSW
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    Default

    I'd say use a chamfer bit with an angle much less than 45 degrees and bearing at the top, e.g.

    Freud 40-098 1 Inch Diameter 15 Degree Chamfer Router Bit 1/2 Inch Shank

    This would allow the chamfer to be added after assembly on a router table. The photo you put up is an interesting effect - haven't seen that done before.

  7. #6
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    Nov 2005
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    Darkest NSW
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    Great minds, eh Kuffy.....

    Those Carbitool bits you suggest would likely be the easiest to get hold of though.

  8. #7
    Join Date
    Nov 2005
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    Darkest NSW
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    In order to route the second face, I'd just rip a thin strip on the tablesaw at the same angle as the chamfer bit, and stick it to the already routed face with DS tape to bring it up to flat again. This strip should be run right into the corners of the frame, and the bearing can run along this for the second cut.

  9. #8
    Join Date
    Nov 2005
    Location
    Darkest NSW
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    Default

    Speaking of DS tape, if you ever see any in Aldi (it appear from time to time) grab 3 or 4 rolls at cheapie prices. Its 50mm wide with a brown backing paper. Their stuff sticks like excrement to the proverbial.....

  10. #9
    Join Date
    Apr 2014
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    Little River
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    77
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    After the legs were made of square timber another box was made to fit on the outside of the leg. This box is positioned to offer a lip to a copy ring on a router. After one side is done you flip the leg and do the other side.

  11. #10
    Join Date
    May 2016
    Location
    Melbourne
    Posts
    193

    Default How would one achieve the inside angle of these legs?

    Thanks for the replies, I thought chamfer bit originally but how would you get the rounded corner? I'm thinking the cove bit might be more like

  12. #11
    Join Date
    Oct 2007
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    Alexandra Vic
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    Quote Originally Posted by jms_8087 View Post
    Thanks for the replies, I thought chamfer bit originally but how would you get the rounded corner? I'm thinking the cove bit might be more like
    Nah, chamfer type bit with bearing. This leaves a tapered semicircular form at the end of a stopped pass. As you route each segment of the assembled leg, you come to the corner and change direction 90deg. The intersection creates a stopped end to the first segment and a stopped start to the next segment, resulting in the tapered rounded corner.
    I used to be an engineer, I'm not an engineer any more, but on the really good days I can remember when I was.

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