Interesting video. Thanks Rob. The point he makes at the very end about the precision of the scroll, makes me wonder what you can achieve across the capacity of these low cost chucks.
Rob,Do you have a picture of your grinder? Did you add any support bearings on the extension?
Looks great. For my 7X12 I've been thinking along Scott's Dremel flex wand approach but maybe I can find an intermediate size motor that would fit.Thanks