Or, add a loose tenon to a **** joint. That way no tricky measuring is involved. Many of my shop drawers are simple glue and nailed **** joints with a plywood bottom also glued and nailed in place. They have held up to some heavy loads, for many years.
This is a nice idea but not really new. Lilred shows some bits sold by Veritas, and others (Freud, Katana) that work well but are very, very difficult to setup and get perfect. They also work best in a dedicated router table. Very finicky.
I struggle with the best way to make drawers consistent and quick and have returned to a dedicated half blind dovetail setup (Porter-Cable). I leave it setup and have one dedicated 1/4" router with bit tuned for the proper thickness. I always plane my secondary wood to the same dimension or use Baltic birch ply. Keeping the setup standard has really helped my efficiency.
Using a router is not the same by any means. The best part of the blade idea is leaving the outer skin to fold. It may not work every time but that's what the tape is for.
How do we contact this guy? The GJ'ers alone could fund this.
I think it could be done with a router which would enable a single tool rather than the combo of dado and profile. Regardless if it works and works consistently it is a winner. I would buy one for sure.
While I'm not a cabinet worker or high-end wood worker that looks pretty slick to me. I might even be able to make a drawer with that blade. I really like how he made two boxes at the same time and just cut them apart. Fascinating
That is cool but it will never be seen over here, European health and safety laws ban dado cutters, although UK law allows blades up to 15.5mm wide, but you can't buy a new saw over here that would take one, you'd have to import one and you could only use it as a hobbyist. We are stuck using routers or multiple passes on the saw for grooving.
Hell I do metal work more then wood and I would buy one for when I must do wood work :} With luck kickstarter or sharktank or something will take off for him.
The first problem is buying plywood from your lumber yard. They buy whatever they can get cheapest. Go to a plywood wholesaler that sells to cabinet shops if you can find one that sells to the public. You can buy good stuff for sure. Just not at most lumber yards. Other than sheathing, we don't buy sheets of anything wood products from a lumber yard.