Drawboring

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  • DewiCorn
    16 December 2012 at 10:43 am #4910

    In church this morning I noticed the design of the end of the pews. The bottom rails have through tenons into the stiles, stiles have haunched stopped tenons into the top rail with drawbores.

    What do you think of drawboring, – are they needed with modern glue etc.?

    Thanks

    Dewi

    Anonymous
    16 December 2012 at 10:55 am #4911

    Today’s glues virtually make draw-boring obsolete in terms of permanent assembly, but it is extremely useful when building knock-down pieces and/or assembling green timber framed structures.  It is a belts and braces method of reinforcing mortise joints via the use of timber/wooden nails. 🙂

    Anonymous
    16 December 2012 at 11:55 am #4913

    I nearly always draw-bore  mortice and tenon joints. It’s a super strong  joint without glue, used with todays modern glues it will last for ever.

    No one really knows the life of modern glues, but one day it will brake down for sure.

    Apart from that I think it looks great, even on fine furniture.

    Ken 😉

    Dave
    16 December 2012 at 1:01 pm #4917

    Is draw-boring putting a pin through a MT jount?

    -Canada

    Anonymous
    16 December 2012 at 1:17 pm #4918

    Hi Dave,

    This will explain it far better than me buddy …………http://www.wkfinetools.com/contrib/cSchwarz/z_art/drawBoring/drawBoring1.asp

    Anonymous
    16 December 2012 at 1:22 pm #4919

    Hi Dave,

    Yes it is and is a method for pulling (Drawing) and holding mortise joints together. 🙂

     

    Dave
    16 December 2012 at 1:58 pm #4920

    Thanks!  I’ve done that before but not so elegantly,  I used lag bolts  lol

    -Canada

    Brent Ingvardsen
    16 December 2012 at 2:01 pm #4921

    When you remove the drawbore pin to place the dowel. What keeps the mortice pulled tight ? Also, Ive seen through  pinning. What keeps the dowel from being so mangeled being hammered through the off aligned holes ? Seems the dowel coming out wouldnt be round anymore for a clean, gap free cutoff.

    Thanks

    Brent

    Meridianville, Alabama, USA

    Anonymous
    16 December 2012 at 2:08 pm #4922

    The pin is just to test the joint really  Brent, It pull tight once you drive the peg home. The above link covers it all in detail buddy 🙂

    Cheers

    Ken

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