Advice on joining 2 pieces of wood together
I seek advice on the best way to join 8 indentical interfaces where 2 pieces of wood come together, whose dimensions follow. Specifically, the type of glue, and the type of mortise and tenon, if any, are the recommendations I seek for maximum strength. This piece will remain indoors and not be exposed to the elements.
As my poor picture tries to show in its middle, I am making table legs to a square table of around 37 at its length. The table top is not shown, only its legs.
Four 2 X 4s, of around 52 form 2 X patterns, as viewed directly above. The lower X interfaces with the floor, the upper one sits just below the table top. Each X is perfectly above/below the other.
I notched the middle of each 2 X 4 (upper and lower pairs) for 3 ½, at ¾ depth so that they can interlock with each other. The upper and lower 2X4s each form their own a perfect Xin other words the 2X4s at top, and separately, the 2X4s at the bottom form 90 degree angles.
The 4 ends of each of these two 2 X4 X patterns (as viewed from above) interface with legs that are around 29 long. These legs are shaped as triangular prisms, that when viewed face on from the side, form a 45 degree triangle whose hypotenuse (by design) is 3 ½ (the same as the width of the end of a 2X4s these triangular prisms will interface with, and whose triangular legs have lengths are around (less than) 2 ½ each. (Again, the leg is 29 tall, but the side length of either non-hypotenuse side of the triangle comprising the table leg is just shy of 2 ½.)
Im thinking that given the small size of the glue up that the motise and tenon example I show in the upper right side of my attachement may not provide greater strength, and may in fact detract from it.
For what its worth I have scrap triangular prisms available to me to allow the triangular prism being glued up to have its hypotenuse face the sky, while 2 triangular prisms sit on either side of its length, while clamps help keep the workpiece in that orientation while the glue dries.