Actually, I have all kinds of clamps to choose from but I like the masking tape approach better. I use a 4-foot long piece of 1" aluminum angle to line all the pieces up along, tape the edges together on what will be the outside, flip the whole thing over, wipe some titebond 3 glue on the faces of the joints, and then just fol it up into a box and tape the last corner. Has always worked great and I get razor sharp edges. Be sure to use a damp cloth and wipe all the excess glue off or the finish won't look good where the glue has soaked into the wood.
It's very easy and has always turned out great for me.
-- Jim
Jim Rebman -- recovering audiophile
Equitech balanced power; uRendu, USB processor -> Musette DAC -> 5670 tube buffer -> Finale Audio F138 FFX -> Cain and Cain Abbys near-field).
s.e.x. 2.1 under construction. Want list: Stereomour II
All ICs homemade (speaker and power next)