PSA: Dado blade setup revealed a dust collection gap I ignored for years

I spent 6 months fighting with chipped edges on plywood shelves at my shop in Austin, thinking my blades were dull. Turns out my dust collection hose was pulling from the wrong side of the blade, letting chips pile up and ruin the cut. Has anyone else tested their dust port placement against the rotation direction for dado stacks?

2 comments

2 Comments

west.alice25d agoTop Commenter

Oh my goodness, that is such a sneaky issue. A buddy of mine runs a cabinet shop and he had the exact same problem with his dado stack for almost a year. He kept blaming the manufacturer, buying new blades, getting frustrated with tear out on his oak plywood. Then one afternoon his part-time helper accidentally hooked the hose to the wrong port. My friend yelled at him, went to fix it, and then he saw the chips were actually being pulled away clean for the first time. He felt like a complete fool but he called me that night laughing about how he had been fighting his own setup the whole time. He said the dust direction on the manual diagram was right there in black and white, he just never looked past the port size.

alex_coleman25d ago

Right, because nothing says "professional woodworker" like spending a year cussing out a tool that was actually fine the whole time. Your buddy basically paid full tuition for a class on "How to Read the Damn Manual" and got his diploma in humble pie. At least he can laugh about it now, probably while staring at the shop vac hose like it owes him money.