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My spring clamps wouldn’t work on an acute-angle joint I needed to clamp. Even though their jaws had swiveling pads, the clamps just slipped off.
Nothing worked to hold the clamps in place until I made my own traction pads by gluing strips of coarse abrasive together back to back. When the glue was dry, I cut the strips into squares and stuck them between the clamp pads and the wood.


