5 Attachment(s)
Here's how I do Jack Miters
Justin had PM'd me asking how I did this, so I though posting it here would be the easiest way to explain. This method is the easiest I've tried for performing jack miter cuts. You need a small miter gauge with a sacrificial fence.
I'm sick with the flu today, so please forgive me if what I type here doesn't make any sense. Hopefully the pictures (some out of focus) will make more sense.
Once you've milled all of your beads, use this stock to set your table saw blade height at 45 degrees. The cutting tip of the tooth of the blade should just graze the shoulder of the bead. This height is critical, so take your time setting it just right.
Attachment 105888
Attach some scrap material to your miter gauge. Here I'm using Incra's v.27 gauge with some 3/4" plywood.
Attachment 105889
Turn on the saw and pass the sacrificial fence through the blade. This will leave a kerf like this...
Attachment 105890
Using a square and super sharp pencil (or a razor blade), transcribe a line from the top point of the kerf to the top edge of your sacrificial fence. This will be the inside reference line for all of your jack miter cuts.
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Mark your beaded frames where the jack miters occur using a square and then transcribe that line to the edge to you can line it up with your transcribed line on your sacrificial fence. Depending on the cut and the tilt of your saw, you may be to the left of the blade or to the right of the blade.
Attachment 105894
cont'd...