Re: [CAD_CAM_EDM_DRO] BYO CNC Lathe ?

Chris L wrote:

>
> Ok,
> I've taken an interest in purchasing a small lathe .... I did not think
> one should build a machine like that out of such soft metal.....
> So, I began to think about building my own. (BYO)
> Is there any reason why I could not use some good sized THK-IKO style
> bearings for the rails ? Why do all lathes have the typical beds with
> sliding gib concepts anyhow ? Linear bearings should work, No ?
>
> I could even put the Tailstock on the same rails with a separate
> leadscrew and handwheel instead of having the tailstock made in the
> conventional way. That sounds alright.
> ....
> I thought I could probably use big chunks of Billet aluminum for the
> headstock and tailstock but was worried about not getting enough mass.
> But I suppose it would still be as good as a Taig or Sherline.
>
> Thoughts ? Am I nuts ?
>
> Chris L
>

Hello Chris,
The linear rail is a good starting point. I had already fixed a
threading machine with this construction. But the last point you
contradict yourself!--->>>> stay with good solid aged cast iron and you
will get something rigid and a nice baby that you might turn into CNC.
Have fun with your GM project. My cousin still has the flat belt lathe
from grandfather. He can put any motor on it. I guess 1945 grandfather
used it first with a bicycle! He made valves out of bullet shells.
(Berlin was full of them./1980 we still rebuilt them for our clients and
sent them for another 25 years into the field.)
Good luck
Sven Peter