Reply To: Special techniques to cutting a non-90 degree mortise?
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17 February 2020 at 10:25 am
#649389
about non-90° tenon, chair makers used a “boîte à recaler”.
It is visible in this 1912 film of the “école Boulle” in Paris:
https://www.ina.fr/video/VDD10045545
At about 2’48” you can see one at each apprentice workbench.
At about 5’40” you can see it in use.
how to make one: https://www.furnituremaking.com/chairs-and-more/difficult-tenon-shoulders-made-easier
As one can see, it needs a dedicated saw mounted in a plane-looking body.