I freed up a couple hours today to build a drag knife. Made from scrap around the shop, it sure beats the price tag on the commercial version. Special thanks to Brian Oltrogge at Grunblau Design Studio for the dxf geometry. Finally I can slot cardboard tubing without making fuzz. My router won't go high enough with my fourth axis fixture on top of the table to use it though. I'm going to have to come up with a custom holder for it that attaches to the router mount.
Almost forgot to mention.....New Z works way better than the old one. It went though the aluminum like a hot knife through butter, no vibration except slight on the ramp downs on the holding tabs. I suspect some of that is normal with a single flute bit.
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