Replies

1. 
   UnclePablo | Oct 08, 2009 11:54pm | #1

   With what would be the inside of the box facing down, align the tips or "long points" of the miters together and use masking tape to hold them there. It's a good idea to run the tape both perpendicular across the joint and long ways. Carefully flip the whole thing over. Apply glue to the faces of the miter cuts and fold the whole thing up. The masking tape acts like a hinge and prevents the miters from slipping too far outward. More tape across the "U" should hold it 'til the glue dries.

   -Paul

2. 
   oldusty | Oct 09, 2009 04:58pm | #2

     For mitered box beams I run a spline the length of each joint , the corners align right up and you can get a clamp on where needed or pin nail them .

        I cut the slot for the spline on the TS while the blade is still on a 45° after cutting the miters, just lower the blade and move the fence over .

      there are many ways    regards dusty

3. 
   dmdnk | Oct 10, 2009 01:16am | #3

   I like the method Paul described.  To make the assembly easier to turn over after taping the pieces together, you can clamp a board across each end to hold everything in place.

   David

1. 
   oldusty | Oct 10, 2009 04:30am | #4

    For a small assembly tape can work great , but for larger and longer I think it is optimistic to think the stock will be flat and cooperative.Maybe use some wide strapping / packing tape ?

             regards          dusty

1. 
   dmdnk | Oct 11, 2009 12:31am | #5

   Yes, definitely

   I use packing tape.  First- small pieces across the joint, then one long piece along the joint.

   Packing tape works well because you can stretch it to pull the joint together and see through it.

   dmd

4. 
   Kumail CA | Mar 03, 2011 09:03am | #6

   My Favorite Wood Beams

   Have a look at the Collection of my beams images!!

   woodlandbeam.com