Just realized the difference between a regular dado stack and a wobble dado for plywood
I was cutting dados for some built-in shelves and tried my old wobble dado for the first cut. The bottom of the groove was rough and it tore up the plywood core. For the next piece, I switched to an 8-inch stacked dado set I borrowed from a friend. The cut was so clean and flat, with no tear-out at all. The stacked set just gave me way more control and a cleaner glue surface. Has anyone else found the wobble dado is just not worth it for finish work?
My first router table was just a piece of plywood with a hole in it. Clamped it right to the workbench. Used it for years before I ever bought a real one. Made a ton of dados that way, actually. The wobble blade always scared me a bit, seemed like it would vibrate too much. A router with a straight bit just felt safer and more solid for that kind of joinery.
Yeah, my buddy had the same thing happen. He used a wobble dado on a bookcase project and the plywood looked all chewed up inside the joint. Had to re-cut every single piece with his router.