Re: Drill-Mill CNC conversion design.

Hi Allan -

Yes I remember your model you sent me. Your stepper motors were
large in diameter, I figured they were NEMA34's. I am using Servo
motors. They are not to big in diameter (thank god!) They do not
have a NEMA plate on them. I plan to use the existing threaded holes
in the motor body to fix it to the plate.

I will look at the length of the preloaded ballnut and plan ahead.

CADMAN

--- In CAD_CAM_EDM_DRO@y..., allan_r9@h... wrote:
> Hi CADMAN,
>
> Just a comment about using a preloaded ballnut - they are longer
than
> a standard ballnut, and require extra planning if you want to use
it
> later. The extra length can cut down the travel of the table,
> especially the Y axis. This may be a problem for your Z axis also -

> if the overall nut is longer, then the screw has to be longer so it
> doesn't let the balls fall out when at the farthest extension of
the
> quill. This additional length on the screw has to go upward where
it
> might interfere with the casting or main spindle pulley.
> Are you using NEMA23 motors? When I set up my internal Z axis it
was
> with NEMA34's
>
> Allan