New - CMT Divided Light Bit Set - "Making a Special Mirror"

   Well, I finished my first corner with this new set, and I am glad I did before Beth arrived.  My joint turned out "OK",  but I think I will teach Beth a slightly different way to make the joint.
  The instructions say to make the the mortises 1/4" from the top surface. While that works, what I really want to do is to make my mortise exactly where the profiling bit has space for that mortise. If your profiling cut is off a hair, all other things will be off.
   So I instruct Beth to first make a sample cut using the profiling bit.

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       Beth has installed the profile bit and is using the RouterRaizer™ to raise the bit so that the ledge of the cutter is level with the straight edge — which is exactly 1/16" thick.

   With the height set, she uses the straight edge to align the fence with the pattern bearing.

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   She profiles the sample piece.

   She inspects the sample. In the inset, the arrow points to the top "ledge". This is why she set the router bit height so carefully — to have that ledge be 1/16th of an inch — it "looks" right.

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    At the mortiser, Beth carefully adjusts the fence until the chisel is aligned with the profile of the cutter. The insert shows where the mortise should go — just at the edge of that ledge.
   While the mortise can be set to the 1/4" mark, I think that this method of cutting to the shape of the profile works better and is easier.

     With her sample done and the mortiser setup, she marks both the rails with lines to indicate the width of the mortises.

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    At the mortiser, she makes sure that the top of the rail is against the fence and is held firmly while she makes the cuts.

  Beth has her mortises made. It is time to cut the tenons. Note that she has numbered each corner on the back side. It is easy to get the pieces turned around and be a hair off — a hair off is a sloppy mortise and tenon joint.
   You can see also that she has cut full width mortises. The outside edge of the mirror will be getting an add-on bead strip which will hide this open edge.
   Now it is time for Beth to cut the matching tenons.

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