RE:Z axis conversion

Jon,

I'm not sure if the lead screws are the same for all axes on my machine, but
I will check. For the record, I am talking about a mill/drill without a
knee. And yes, I plan to rely on the DRO, but others may not have that
option, so watch out.

Thanks,
Tom

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WOW! The gear ratio is usually 2:1, which is not too hard to get. The
handle
goes one full circle for .100", and the lead screw is generally the same
as the
X and Y screws, at .200" / rev. It shouldn't be too hard to check the
gears.
One way is to pull the Y bearing bracket off the front, and unwind the Y
screw
from the yoke. This gives pretty good vision and access to the inside
of the
knee. Either way, you could have them replace it, as it is an accuracy
problem. Since you have the DRO, you might not worry about it any more.

But, if anyone else has this sort of error on a new machine, they should
get
a new part at no cost!

Jon

>>>>>>>>>