Re: cnc lathe project

Hi,

one very important bit of information is just how large of a part you want to cut.

when I was doing production lathe work, we were doing 12 inch stainless steel rings. some about 0.1 " thick.

to hold them we used soft jaws, welded on a 1 inch thick steel tube, cut the dia of the part, then separated the ring to make each act independently.

you can buy the headstock of a 7x10 mini lathe from littlemachineshop and mount it on risers to swing a pretty large part.

since you are doing plastics, your cutting forces will be much less than if you were doing metals.

Dave

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Denis" <fprckq@...> wrote:
>
> Hello all,
> I want to build a small cnc lathe with a 6 jaw chuck so I can work plastics.
> From what I've seen lathe chucks have 4 joint types, cam lock, threaded nut and taper, screw on chuck ( like south bend ) and some imported chucks that bolt on the back.
> The spindle looks like it would be the hardest part to come by, because the chuck interface joint looks difficult to manufacture.
> I like the cam lock type - is it easy to make? Is it a good choice?
> Are there adapters to go from one joint type to another or are you stuck with what you select for a joint type?
> What's the best approach to getting a spindle for the lathe; should I attempt to make a spindle, or would it make more sense to buy one if I could find a source for it?
> thanks
> Denis
>