Building a credenza with 3/4” plywood. Using miter joints on the carcass to avoid showing the plywood “end grain”. How can I reinforce those joints? The pros are using festool domino. I have a handheld drill and a handheld router. Can I do a dowel joint? I don’t know how to do that on a miter.
Is there a reason you aren’t using edge banding to cover the exposed edges?
I could do edge banding and switch to butt joints if I have to but I’d prefer the miters with this design.
I think a slined miter like edm00se suggested or a lock miter made with a router are probably your best bets for strength of the joint.