Re: [CAD_CAM_EDM_DRO] cnc lathe project

On 05/16/2011 01:09 AM, Denis 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?

It is easy to make IF you have a rotary table, mill and lathe which will
allow you to hold well under 0.001" accuracy. Unfortunately, without
those tools, it is difficult to make. Camlock spindles are great, but
expen$ive.

> Are there adapters to go from one joint type to another or are you stuck with what you select for a joint type?

There are adapters (like backplates) which are common. Unfortunately,
they are expen$ive! Precision machinery always costs money.

> 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

Look at
http://littlemachineshop.com/products/product_view.php?ProductID=2027&category=5
<http://littlemachineshop.com/products/product_view.php?ProductID=2027&category=5>,
there are more from different lathes, but these are typical.

Dave 8{)