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  1. #1
    Join Date
    Feb 2016
    Location
    Melbourne
    Posts
    30

    Default Round table build question (and build)

    Hey all,

    I have a question regarding a table I am currently working on, and would love some advice if anyone has any thoughts to share.

    One of the pairs of legs slides into the table top via a sliding dovetail to attach and stop any cupping of the table top, and the other will simply be screwed in, along the direction of the grain so movement wont be a problem.

    IMG_20210906_190245.jpg

    I need to cross lap the two rails for the legs. Originally I planned to have the dovetailed rail as the bottom lap (towards floor), and the screwed rail as the top lap (against table), so the screwed rail would be pinned against the table. I figured this would make it more secure, but I am not really sure if this gives any structural benefit. It also makes it a touch harder to assemble as it means that both pairs of legs need to be attached at the same time, when sliding in the dovetailed rail.

    So my question is, does one of the alternatives make for a stronger table? Which way would you choose?

    Cheers,
    LC

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  3. #2
    Join Date
    Jul 2005
    Location
    Oberon, NSW
    Age
    63
    Posts
    13,359

    Default

    I'd fit the dovetailed pair first, then t'other.

    That way you can add the depth of the dovetail to your calculations, so each half-lap would be slightly thicker.

    The other way, you're cutting out a section of the dove-tail that the other piece wouldn't replace without ridiculous complications.
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc

  4. #3
    Join Date
    May 2007
    Location
    Sth Gippsland Vic
    Posts
    4,369

    Default

    How high is this table ? Dinning table height ?
    It looks like its going to have some sideways / twisting spring in it . Are you intending to add some 45 degree bracing between the top and legs to stop that?

  5. #4
    Join Date
    Feb 2016
    Location
    Melbourne
    Posts
    30

    Default

    Quote Originally Posted by Skew ChiDAMN!! View Post
    I'd fit the dovetailed pair first, then t'other.

    That way you can add the depth of the dovetail to your calculations, so each half-lap would be slightly thicker.

    The other way, you're cutting out a section of the dove-tail that the other piece wouldn't replace without ridiculous complications.
    I actually had this thought soon after posting! Thanks for the advice. Based on the comprehensive survey size of 1, I have cut the lap this way and it seems to be sturdy for downwards pressure

    Quote Originally Posted by auscab View Post
    How high is this table ? Dinning table height ?
    It looks like its going to have some sideways / twisting spring in it . Are you intending to add some 45 degree bracing between the top and legs to stop that?

    The height including top is 750mm, so dining table height. I had not considered this but having just put it together... if the Wiggles were auditioning, this table would probably get the job.

    I came across this post, which shows some small cross rails to provide bracing near the legs. I will probably do something as these are quite subtle, but I am open to suggestions.

    I might add them on just the screwed in rail first and see if that provides adequate bracing before adding them to the dovetailed rail.

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