An interestingly good way to finish cut a plug

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An interestingly good way to finish cut a plug

Post by MineralitePaul » April 17th, 2019, 2:10 am

Today I took a brand new hacksaw blade, brought it to my table belt sander, and sanded and polished the non-cutting side of the blade at a few degrees off normal using 1000 grit paper. I found that if I bow the blade to the curvature of a bowling ball and lay it one its side with the sharpened edge on top of the cut plug while said ball is on a spinner, it will shave the plug evenly and quite expediently to the curvature of the ball while not touching the ball. The sharpened edge must face opposite to the direction of travel.

So far, I have found this to work better than any method I have tried in the past 30 years. It does take a bit of practice to get excellent results but I think its worth it. Since hacksaw blades are hardened steel, the edge lasts quite a while before it needs sharpening.

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Re: An interestingly good way to finish cut a plug

Post by snick » April 17th, 2019, 2:28 am

Nice trick!
I've been using the edge of a span ruler on the spinner to shave the slug flush with the ball.
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