Doughnut help

Re: Doughnut help

Don Evans

>Ken:

Taking your words literally, I would say a tenon isn't the best way to do it.

Why not consider making a foot that is angled to fit into the inside of the jaws, then part it off and bolt it to the back side of the doughnut jig. I've got a couple of SuperNova's and the 4" jaws that I would size it for.

Another idea is to remove the jaws, get longer screws, drill double holes in the back plate of the doughnut and screw it directly to the chuck.

I think both ways would be much stronger than tenon that the chuck clamps.

Don

Re: Doughnut help

Colin Spencer

>Ken

My doughnut chuck has a recess in it that the jaws of my chuck fit in to (rather than a tennon). I have used this for the last 12 month with no problem. The other advantage of doing it this way is that you have a hole in the centre of the bottom plate that allows you to fit various pre-turned mandrels that closely mimic the shape of the inside of the bowl to give it some support. I'll take some photos if you would like.

Re: Doughnut help

ken chase

>Colin:

Thanks for your generous offer. I would appreciate seeing a photo of your creation. I'm wondering if I'm making this too complicated for myself. Maybe the faceplate is the least fussy way to do this.

Ken

Re: Doughnut help

theeviltwinn

>I used a faceplate to make mine. I thought that a faceplate would have a better chance of being mounted exactly the same everytime it is used. With a tennon or a recess everytime you grab it with the chuck you are compressing wood fibers and over time you may have trouble getting it centered exactly.

Mike