I was challenged recently with aligning, gluing, and clamping some oversize miters. To provide clamping pressure, I prepared two identical T-section clamping blocks from 3/4-in. and 1/2-in. plywood and cut a 90° notch in the leg of each block.
I clamped the blocks symmetrically on opposite sides of the miter. By locating a third clamp in the notches, I was able to apply even pressure in the leg of each block across the joint surfaces without any slippage. Biscuits in the joints ensured no misalignment in the material.
Robert Gunn, Mississauga, None