More of an Assembly Question
I just got the Lapped Miter Bit from Infinity and really like the concept and amount of glue surface it provides. It also seems to do well with plywood. I did get the setup blocks and this gets you really close. When I finally dialed in the fence depth and got a good clean cut I made a sample to keep with the plywood I generally use. I did this with my rails and stiles set as well (w/hardwood). I have a fence micro adjuster coming tomorrow for my Woodpeckers Super Fence which I highly recommend (the fence). I'll report back on the Micro Adjuster after setting up and using. The question really involves the assembly of the parts when using the Lapped Miter Bits. As you have two 45 degree corners coming together to make the 90 getting the two point exact is key to a clean corner. The best corner clamps I've found and used are the Bessey WS3 corner clamps and even those are hard to align the corners and tighten the clamp at the same time. The Kreg corner clamps, the newer ones, seem to work OK if you have a set of other corner clamps already holding one side together.
What I was making was a table saw blade cabinet to store my blades. Seems like a good design and overall it came out fairly good, could be cleaner corners, but key was more the assembly than the actual cuts. Anyone have words of knowledge to impart? I have to admit the lock miter joint is way easier to clamp and square but shows the plywood edges where the lapped miter joint never shows the plywood edge and looks better (to me) plus I have an investment in this now so getting it right just got a bit more important. I do have the Woodpeckers Box Clamps but find them clunky to use. Maybe I didn't spend enough time trying to adjust them properly. It came down to trying to see, adjust and keep parts aligned all at the same time. And then it could have had something to do with the time of night and being tired. Maybe I need to learn to walk away from a problem and then come back later. That use to work and often I'd dream about it solving the problem. Now not so much, I seem to be less patient.