Re: [CAD_CAM_EDM_DRO] CNCing the knee axis...

Hey Kim~!

On Wednesday 24 September 2003 09:17 am, Kim Lux spake:

> I've got two concerns with controlling the knee:
>
> a) does the knee remain square to the machine when not locked ? Ie is
> the knee designed to be an axis feed, ie moved up and down without being
> locked ? (my friend tells me no...)

Your friend is absolutely correct.
A knee *will* move without it being locked.
You can verify this by setting up an indicator on the
table, against the quill, and locking and unlocking the knee.
On some machines, you will see it move as much as .010".
On my Bridget, it moves just under .001".
(and I probably need to adjust the gib...)

> Our mill does not have a gib
> adjustment on the knee.

Are you sure?
Just about every one I've ever seen has a gib...

Check under the way wiper.

Best,

Weyland