Hi,
Today I was making a narrow frame for my Kumiko panel and wanted to reinforce the corners with miter keys. The common method for this is to use a jig that slides along the table saw fence holding the workpiece at 45 degrees so the blade can cut the slot. I've also seen a similar jig turned on its side to ride along a router table fence for a slot cutter to make the cut.
Here I am using a biscuit joiner to do the same thing. Did you know a biscuit joiner can be a stationary tool? All you need to do is mount it to a small bench on bench type table. Most biscuit joiners have tapped holes or some other means of securing them to a surface. Doing so improves accuracy and opens up lots of other opportunities. In my case, I just miter cut two small pieces of MDF and secured them to my table with double stick tape and I was ready to cut miter splines in about 60 seconds. The depth of cut can be set using the various biscuit settings. Here the frame is only 3/8" wide so it worked out that the 0 biscuit depth was perfect.
Not necessarily saying this is better than the table saw or router slot cutter, just another method of reaching the same destination. Hope this might be useful to someone else.
Edwin
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