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The last tutorial was on making a prototype. Now I am working in quarter-sawn oak and making the first 2 chairs from my templates after making very minor modifications. I lowered the back 1" and I shortened the front to back distance 1". Now I am working with mortises using my slot mortiser on the MiniMax J/P Mortiser. By making an inclined table at 9.6 degrees, the tenons will approximate the curve of the rear top stretcher. This was something I used to make an inclined jig and use a router. It is one of the things that makes chairs a little tough to figure out and construct.
I realize that many of you don't have a slot mortiser and for years I didn't either, just make a router jig. The legs were paired and shaped together using rasps... I included my shop built bandsaw table which is really great on angled cuts and precise sizing of legs etc. The last photo shows my Japanese mortise gauge another specialty tool that was given to me by Chris Fedderschon from Palomar College woodworking school on a recent trip to Japan.
Japanese mortise gauge is not available in the US. It is almost like a square and caliper combined.
It allows you to layout from the edges of the board, marking center lines or mortise perimeters and match from one board to the mate. It also allows checking the height of the bit from the mortising table and match to the board. It is important to sketch the critical connections.
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