This is a relatively simple part of a wedged through tenon joint to make, but I was still wondering one thing about the kerfs where the wedges will be driven: How far from the ends of the tenon should they be? So I looked around to see if Korn had anything to say on the matter. He writes that it should be no more than a quarter-inch from the end, and made with a relatively thick-plated saw. So I decided to go to about 3/16″, and test to see if a wedge will fit into the kerf initially (without banging it in). Seems okay:
I opted not to drill the holes at the bottoms of the kerfs that another book says to do (I think this might be helpful if the wood were harder).
Then I did the other seven tenons, and I now have four stretchers ready to go:
Well, that’s nice. All of the saw till parts are now ready for assembly. In preparation, I also removed the huge layers of rust from a couple of heavy Hartford Clamp bar clamps (estate sale find) so that they won’t “rub off” on me or the saw till during assembly. About the only thing I don’t have are some cauls for the work, but I have plenty of scrap.
Glue-up will probably be tomorrow morning.