Re: [CAD_CAM_EDM_DRO] Re: help with Y axis on bridgeport

Wally K wrote:

> Jon, i read your post and all the other peoples posts that responded,
> 3 times. I thank all of you for responding.
>
> I was dumbfounded to learn the end of the Y axis screw is unsuported
> inside the milling machine after it passes thru the nut.
>
> So if i understand this correctly when i do the acme to ballscrew
> conversion the ballnut in the machine is the only support for the Y
> axis free end.

Well, you could try to place a far-end bearing mount in the knee, but
it would be extremely difficult to get it in the right place, exactly in
line with the nut and handle-end bearing! I assume all Bridgport
conversions on Series-I machines are this way. I don't know
about series-II machines, but the re likely that way, too. The Y
axis is a pretty short screw, anyway. I did my ballscrew conversion
this way, as I saw no way to accurately place the bearing support,
and it would be just plain difficult to do anything deep in the rear of
the knee, anyway.

Jon