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I make long C clamps using some hard plywood. You can do a lot of compression with these extra powerful clamps. It is very useful thanks to its long arms. It is also strong enough to break the board. After downloading the dimensions PDF and watching this video, you can easily make Extra Strong Long C clamps. Adjustable distance very useful.
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PDF Download : Extra Strong Long Reach C-Clamps
Did you see this ? GreenSaw G Clamps
I make a centrifugal air blower. It's a way to get the dust out of my workshop. I am building many parts using 10mm plywood. I use the electric motor that I removed from

Make this practical and easy-to-make chisel sharpening jig to perfectly sharpen your woodworking tools!