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Thread: Need some help with design

  1. #1
    Join Date
    May 2008
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    Brad

    Default Need some help with design

    I found this Sketchup design in the warehouse. I started building it with my Midi Lathe and grinder in mind. So far I have the sides cut and lap jointed. I just realized, I am not too sure how to fasten the sides to the top and bottom rails. I am also not sure of the best way to fasten the shelf to the sides. Any suggestions? I was thinking of using 1/2" dowels with a screw to act as a clamp since I don't have clamps big enough.

    What are you thoughts?
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  2. #2
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    Hamilton,On Canada
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    Brad

    Default Re: Need some help with design

    Maybe pocket screws? Should do the job.
    "Turn it, Don't burn it!"

  3. #3
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    Default Re: Need some help with design

    There are all sorts of clips and fasteners on the Lee Valley Site:

    http://www.leevalley.com/en/hardware...06,41312,50311
    http://www.leevalley.com/en/hardware...=3,41306,41309

    http://www.leevalley.com/en/hardware...=3,41306,41309

    Not sure if that is what you mean.

    Otherwise a good furniture design book will show you other methods.
    ---
    Will

    “There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact.” —- Mark Twain

  4. #4
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    Paynton, saskatchewan
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    Default Re: Need some help with design

    I would definitely go with pockets screws if you can. If the top is never coming off again then glue it too.

  5. #5
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    Brad

    Default Re: Need some help with design

    I guess I wasn't too clear in my first posting. I am wondering how to join the cross rails to the side pieces. The top I will just screw down. I am worried about it being rigid enough as to not sway sideways. basically, there are 2 side "panels" and 1 back "panel". I can't figure out the best way to join them together.

  6. #6
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    Default Re: Need some help with design

    Not sure about dowels for this application.
    I would use chunky splines. Yellow glue if you get nice fit, epoxy if the hand is not that steady.

    If you don't have sufficiently long clamps then indeed, screws could be use as clamping devices. You have a bunch of elements that appear to have more than sufficient combined gluing/fastening surface. Auxiliary screws (in addition to glue) from underneath will do wonders too. Through bolts might be an overkill but surely an effective one. The bottom shelf seems to be placed between the table's legs. Glue it and screw it to the legs from underneath. The legs wont let the frame go apart, and the frame elements won't allow cross members to move away from the legs.

    Unless I completely misunderstand the drawing, this structure will be rock solid as a result of combination of glue, fasteners and positioning of elements in relation to other elements.
    In order to understand recursion, one must first understand recursion

  7. #7
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    Default Re: Need some help with design

    Brad taking one problem at a time I would deal with the top rail. Right now it looks like a butt joint and that will be weak. It would be better if you cut a corner recess to lay the top rail on top of the front a back legs. Then glue and screw it.

    When that's done I'm sure you will see how you can build the shelf supports into the legs with either a cut out notch or just screwed to the legs. Pocket screws would work but a notch would be stronger.
    "Do it Right!"

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