I am looking for input on how one would go about putting a convex taper on two flatsides of a tennon shoulder and like wise match it with a convex hollow on the mortise face.
I can see the mortise working with a spokeshave but the tennon shoulder i can only see getting done with a shoulderplane.
Any other input please. Building a gramecy turning saw and the cross bar should ideally rock on its mortise and tennon not essential but hey i am looking at the challenge not the easy way out
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