Reply by Kelly

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Posted on Band Saw Circle Cutting Jig Problems

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2001 posts in 2910 days

#1 posted 12-31-2012 09:41 PM

The fact this thread is twenty-seven years old aside, it’s obvious I’m prone o ramble without getting to the answer. It was asked what was meant when we talk of having the pivot pin pin in front of the blade.

You could push a board down the fence and into the blade. If it helps and for the sake of this discussion, presume you stopped when the blade was half way through the stock. Once there, draw a line ninety degrees off that line, at the point where you stopped the cut. Your pivot pin would move along the line you just drew. It’s position would depend on how big a circle you wanted.

Now, if a square piece of wood with a hole just big enough to fit over the pivot was pushed into the blade [without turning it], until the blade was straight across from the [now invisible] pivot (the reason for the stop), you could start your circle.

If it helps, I’ve included a photo of my improved jig, which, like I mentioned, allows you to just push the wood into the [e.g., 3/16”] blade. Once the stop comes up against the table, just start turning.

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