Re: mill drill conversion

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:

>
>
> jroark31 wrote:
>
> >I am converting a gear head mill drill with a dove tail slide in

Z.

> >What size servo motor will I need to cut aluminum and steel?
> >
> >
> That is very hard to answer. You need to determine how fast you

need

> to move, whether you will use ballscrews or keep the original Acme
> screws, the screw pitch, what the higest cutting force you expect

will be,

> and maybe some other factors, too. Small (ie. low torque, high

speed)

> motors can be used with a belt reduction. Low speed, high-torque
> motors can be used with direct drive or a 1:1 ratio. What servo

motor

> driver will you use?
>
> Jon

I will be replacing the ACME screw with ball screws .2 lead. I
would really like to be able to cut wood and plastic at 60ipm max
and rapid around 100ipm. I would also like to cut Aluminum and Steel
(much slower). I currently have 3 servo motors peek torque of
430oz_in 1700rpm I am using Gecko G320 drives. I am tempted to sell
my motors for 600oz_in motors 900rpm found on Camtronics web site.
I need some advice form someone who has practical experience.
Thanks for the help. I am in need of it.