- Messages
- 6,035
- Location
- Plainwell, Michigan
No freezing for a while Larry as I said "some day" and that is a long time in my terms but when I do, I will hide it so you won't get contaminated when you come by
Er, Brent? How you doin'?
The tenon should be of a size that allows for the jaws to "almost" be completely closed.
Oh sure, now you tell us.
...For the best grab, you want the diameter of the tennon slightly larger than the smallest diameter of the jaws i.e. if your chuck jaws make a 2" circle when fully closed then make the tennon diameter 2 1/4". Incidentally, I hope you are still using the tailstock to keep pressure on the blank as you turn.
...As Ted said, you should make your tenon just a bit bigger than your jaws when they are in the fully closed position. For example, my main jaws are 50mm, or just shy of 2". I usually make my tenons about 2 1/4" to 2 3/8" in diameter. Unless your jaws are in the 3" to 4" range when fully closed, I'd suggest making the tenon smaller....
Looking great, Jim.
Advice for future bowls: Looking at the 6th and 7th pictures in your latest series, it looks like your chuck jaws are pretty wide open, at about the upper limit of their capacity. You'll get a much better grip if the tenon is sized so that the jaws are closed nearly all the way. The tenon should be of a size that allows for the jaws to "almost" be completely closed. This maximizes the surface contact of the tenon to the jaws and makes for a very strong attachment.