re: UNI Mitre key jig

Very nicely done Klaus. This looks like a very well designed and effective jig, and the super results certainly attest to it’s effectiveness.

Not to be contrary or dismiss the advantages of extra strength, but I would like to see some discussion on the need for strengthening miters on smaller boxes. I’m thinking here of the typical jewelry type boxes so many of us like to make. I have been just gluing my mitered boxes for many years and I have never had one fail. Some say that miters need reinforcement since they are end-grain, but in reality they are a combination of end and long-grain, and with the relatively large amount of glue surface on box corners they hold together really well. I can see the need for reinforcement on larger boxes, or maybe I should say containers that will have to bear heavier loads where there is a lot of stress on the joints. I can also see the need to reinforce miters on thinner materials where the joints don’t offer enough glue surface to hold very well.