Holding wood on the lathe without leaving marks.
I was at a craft show and there was a turner there that had some bowls made of live edge burl caps where the live edge on the underside of the bowl was perfectly preserved. No tenon, no drive center mark, no live center mark, nuthin’. And by live edge, I mean the entire underside of the bowl was that knarly, prickly burl.
I asked how he did that and he said he had a special drive to hold it. I didn’t think a vacuum chuck would hold a live edge burl, but I asked anyway and he said he didn’t use a vacuum chuck. I didn’t want to pry much more, but I remained curious.
Any idea how this might have been done?