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  • Silverman
  • Don Simpson

    My father’s father had a pedal-powered grindstone with a two-foot-diameter stone. It wasn’t a converted bicycle, but had a wooden frame and a steel tractor seat. I got to see it at his farm in Missouri during late 40s and early 50s visits.

  • Erik Della Penna

    Hi, I’m a musician living in NYC who has taken up knife sharpening as a side job. I would love to have a bicycle powered sharpening rig like this. I’m not exceedingly mechanically inclined. Do you have any advise on how I might go about constructing something like this?