Will to clarify… you want someone to try to do 2 things.
- See the Above run on a piece of stock oriented at 45degs on the wasteboard?
- Create boxes that have openings that taper in and taper out based on the geometry of the lap joint?
Those are just idle wonderings on my part — the first should be easy for someone to do (I’m going to try it this evening) — if someone has a piece of plywood and wants a square box, let me know the dimensions of the plywood esp. the thickness, the desired box, and I’ll work up files for it — you’ll need a narrow 90 degree V endmill such as a Whiteside Router Bits 1500 V-Groove Bit with 90-Degree 1/4-Inch Cutting Diameter and 1/8-Inch Point Length
The latter looks like it will require some geometric adjustment of the joinery — I’ve shelved it until a later time since it will also require a narrow ball-tipped tapered endmill (or endmills of arbitrary angles? Does anyone know of a source for same?)
The Rockler dado set looks good on paper, but it takes a couple of hours of trial and error, changing shims and blade height to get it right, and it’s never really as perfect as the pictures look. I’m actually a Rockler employee and one of my jobs is demonstrating this dado set. It makes sense in a production setting, but for one-off drawers, a lock miter joint, etc. is much better. A lock miter joint is a bit challenging to set up on a router table, and I think using a CNC to cut this joint makes more sense. Also doses not limit the size of the drawer box since the 4 sides are not attached during the milling process.
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Glad you commented. It is like other supposedly easy to use jigs. Almost all are fiddley and require a lot of test cuts to make. And then take off to use std blade, and you are back to square one.
Agreed. The other issue is that such a thin veneer of wood is left for bending that is almost invariably cracks somewhere along its length. And the thickness of each sheet of plywood is variable, requiring more fiddling with the cutter.
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If you take the design you show. Use a 90degree .5 dia vbit and run a profile on the center line and set the cut depth to just a little bit less than .25 assuming you are using .25 plywood .Then cut away the 4 corner squares then the 4 sides will fold up and make your box.
I make boxes like this all the time . If you change the size of the plywood then you have to use an larger Dia 90 degree vbit.
Jeff
Correct, I show that at:
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