ROUGH CUT STRAIGHTEDGE CUTTING JIG WITH KNOBS II (THE NEW AND IMPROVED VERSION!)
This is the bottom of the straightedge cutting jig. It is made from the material available on the shop, half-inch plywood. You can see the hardwood rail for tracking the jig. It is smaller than the last one because that’s all I had. LOL!
This board is wider than the last to accommodate wider slabs of wood. The original version was not able to handle more than 8 inches in width. The wider holes allow for a carriage bolt head to be recessed in the jig. The carriage bolts are also longer than in the first version to act as a fulcrum for thicker, and wider pieces.
As before, due to humidity and moisture problems which occur in the middle of summer, even with air-conditioning, I applied two coats of Seal Coat and two coats of waterborne poly.
Two of my fellow LJ’s Bob/ Grizz and Andy/GFADVM suggested that I use knobs instead of wing nuts. I was able to locate on Amazon the knobs for about $.70 apiece. The bolts are set back to provide a fulcrum for the dog bone shaped hold downs. The ratio and leverages about 4 to 1 providing adequate strength to hold the board while ripping a straight edge.
This allowed me to rip wider boards that I milled on my band saw.
A nice straight edge!
AS ALWAYS, COMMENTS, HUMOR AND CRITICISMS WELCOME!
-- Cau Haus Designs, Thomas J. Tieffenbacher