I switched to corner clamps. In use, the inner corner of the clamp is permanently attached to the frame's center hole. Since you're holding your material in place by trying to pinch it, you now have to pull the center piece out of the hilt with your third hand while you start cursing in Cantonese. By the time you place it on the corner and align the boards properly, my 40-year-old corner clamp is already glued and screwed (which is actually good, but it sure doesn't sound right). The reason I grabbed this clamp is because the old clamp takes forever to screw individual pages to the material, but at least you can do it page by page and don't need a third hand other than to hold the glue . bottle or cold beer. The pros are that it's well done, so here it is. Well done junk.
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