Re: Z axis conversion

Wally K. replys

The bevel gear backlash is another problem. First the sticktion of
the knee would have to be solved. Then a linear encoder would have
to be mounted on the knee to work around the backlash problem.


Joe Vicars wrote:

> What about the backlash in the bevel gear?
>
> >
> > Wally K. replys
> >
> > First if i was going to power the knee i would do it like the X

and Y

> > axis and mount the motor were the hand wheel goes.
> >
> > Second i am worried about "sticktion" of the knee. I remember

now,

> > somtimes when i crank it down quickly it will jump a little.

what

> > happens is as the backlash is taken out the screw pulls on the

knee

> > and the knee falls with a clunk.