I designed and built two follow rests for my hardinge. The first one I didn't really understand what it was supposed to do... really bodged it. The second try rocked; I was able to extend the thread on a 1/4"-28 bolt 4" long!
The three leg trap in two planes was a huge step forward. That let me completely control the work.
Fyi, don't use rollers for a steady. You want the scraping/sliding action to move chips out of the way.
If you want the design files, head over to thingiverse and search for "Weldingrod".
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