Hello - I am a novice woodworker and would like to make my own canvas stretcher bars. I have a router, compound miter saw, table saw and more tools. Can anyone give simple advise or a quick how to on how to make these. Of course they can be purchased but I want to make large paintings about 5' X 5'. Sets of these bars = $$$. I was thinking a tongue & groove router bit. Hope someone here can help. Thank you.