OK, this chuck is coming out, it is just being produced, first run kind of thing.
If you have ever seen any of Jean-Francois Escoulen's turnings, you will see that he does a lot of off axis turnings, or multi axis turnings.
His regular eccentric chuck somewhat like a collet chuck, and a cup chuck combined. It uses a captured ball with a cup chuck in it, so by altering the tilt of the ball, in the chuck you can get an off axis turning.
You can see a good report on this kind of turning at this blog.......
I'd love to get one of those chucks, and will at some point, but I could not resist the deal I got on Jean-Francois's new chuck, so I went ahead and smashed the piggy bank to get it.
This new chuck is not a "Wobble" chuck, but a true multi axis turning chuck.
This is how it comes, in a nice neat box
You can see everything that comes with
This is the chuck, with the cup chuck in the center, not off axis at all.
here the cup chuck has been moved all the way to the extreme off axis position.
Moving the cup chuck to such an extreme off axis position would create a lot of vibration, but the Escoulen chuck handles this by having movable weights on the back of the chuck. Here they are in the neutral position. You can see the black Sharpie marks on the chuck (the real production chucks will have a mark on the chuck showing this, but for now,I'll just use a file to make a mark)
Here the weights are move all the way off axis to counter weight the off axis cup chuck.
This is the cup gage that comes with the chuck, making the tenon you turn for the cup easier than using calipers etc. This chuck came with the 40mm cup, more sizes will be available in the future, as accessories.
here is a piece of wood with a tenon turned on it for the cup, a quick note, Jean-Francois suggests getting a tight fit, but also slightly wetting the tenon, before you insert it into the cup chuck, he said this has two advantages; one, it makes the tenon slide in easier, the water is a lubricant, second, the wood fibers will swell slightly, this will give an even tighter fit.
With the cup chuck at the extreme off axis position, you can now see the piece of wood with the #1 side towards you, you would then turn the piece, how you like........
........ and then rotate the piece of wood, so a different side of the wood is to be cut. Here you can see that the #1 and the #2 sides are showing. Once you get your head wrapped around that this can do, you will be amazed, the shapes and the turning that can result are really off the scale, this, in the hands of a good turner, one with a fertile imagination, will be one heck of a tool, sadly, I've got my mitts on it, so you will have to wait a while until anything "interesting" comes off of it.....
One more thing, Jean-Francois was kind enough to include the faceplate in my deal, this is usually a separate accessory. With the face screwed to a neat platter etc, I think some of you might just see the possibilities offered with this design, and the neatest thing is, with the counter weights, you are not fighting this huge unbalanced situation.
Well, that is it for now, I've got my spindle adapter on order, so I can only look at this amazing piece of tooling for now.