I'm planning to build a torsion box and they say you need a flat surface to build one - but if I had a flat surface I wouldn't need a torsion box.
[And I know about jointing 2x4 on shimmed saw horses - I've seen the wood whisperer thing but I don't have a jointer and am not good with winding sticks]
I'm planning to follow Jamie Buxton's advice found here:
www.geocities.com/bawanewsletter/jun02/torsionbox1.pdf
and make the grid out of notched strips (he says it's OK if the cross pieces of the grid don't glue to each other - the strength comes from the glue joint with to the top and bottom skins)
Here's my question - if the grid is cut from strips that are the same width (my table saw can do that) and I glue the strips flush with the skins, won't they automatically form a flat surface?
I'm thinking I'll glue the grid to one skin using clamps and cauls on the flattest table I have (even though it's not as flat as I want) then when it dries the grid should pull the skin flatter than the table and that should be flat enough to glue the other skin on.
Am I headed for disaster with this?