Today I posted the first of a series of videos on getting more out of your Shopsmith:
I love my early 80's vintage Mark V Shopsmith. I bought it on Craig's List years ago, and it has made woodworking in my small space possible ever since. This is a trick I use to make sure I'm tapping straight into holes. This time, I'm not actually working with wood, but threaded holes are elements of all sorts of custom tools and fixtures, which I use for woodwork.
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December 12 update: I posted these instructions to instructables.com.