Join Date: Jan 2019
Location: Central North Carolina
If you carefully stack your pieces together and clamp them, you won't need double sided tape, or even hot melt glue, but the farther away your boards are from the jig on your miter gauge, the more likely you will have problems if the miter gauge isn't absolutely 90 deg to the saw blade and there is any play in the miter slot. The further away, the more these errors will affect the farthest board. I wouldn't try to cut the A half of the joint at the same time that I was cutting the B half either. Stacking works well if you don't overdo it. Go for too much and accumulated errors can create a disaster.
Production methods use stacked blades and precise slides. All of it is automated for worker safety too, for operator safety. I use an Incra I-Box jig on my Unisaw with a Freud SBOX8 blade set to cut most of my box joints, and I cut several pieces at a time, but never large stacks of them. I do the A half of the corner joint on both ends of the front and back pieces of the box. Then the B half on both ends of the side pieces of my boxes. I might make 2 or 3 boxes at the same time depending on the thickness of the box sides, but never more than that.
Last edited by CharleyL; 05-05-2020 at 02:34 PM.