Pre-contact Maori whalebone club

fearn · 11th September 2010, 06:38 PM

Just for clarification, Robert, are you talking about drilling a hole or drilling a concentric circle?

I agree that drilling a circular hole is easy. Drilling a concentric circle is trickier, because you've got to have a tough, yet hollow bit, and then (most importantly for this piece) you've got to do it three times in a row the same way, and then center a hole in each circle. As I said, this is all tricky. It's even more tricky if it's not part of one's normal artistic repertoire.

What makes me suspicious is that there are three of those concentric circles. If all three are the same size, that's really suspicious, because exactly duplicating the size of such features is a real chore if you're doing it freehand, and there's no particular reason to do it in this design. Conversely, if you have a drill bit with a groove on the outside or anything similar, that's the design you'll get.

F

11th September 2010, 06:38 PM	#28
fearn Member Join Date: Dec 2004 Posts: 1,247	Just for clarification, Robert, are you talking about drilling a hole or drilling a concentric circle? I agree that drilling a circular hole is easy. Drilling a concentric circle is trickier, because you've got to have a tough, yet hollow bit, and then (most importantly for this piece) you've got to do it three times in a row the same way, and then center a hole in each circle. As I said, this is all tricky. It's even more tricky if it's not part of one's normal artistic repertoire. What makes me suspicious is that there are three of those concentric circles. If all three are the same size, that's really suspicious, because exactly duplicating the size of such features is a real chore if you're doing it freehand, and there's no particular reason to do it in this design. Conversely, if you have a drill bit with a groove on the outside or anything similar, that's the design you'll get. F