Anyone use these Clamps? I'm going to start a laser cut structure next weekend and want to make sure it's square. I found these doing research and bought the O Scale set, they look like they will make building square walls easier.
The description says they'll hold material up to 1/4" thick so I'm hoping they'll hold the Ameritowne Walls.
https://www.youtube.com/watch?v=aGY2XYrVFYU