Re: What makes a machine CNC ready?

Well, according to the calculator on the Nook website, I input a
couple values

40 pounds loading - about average for a home shop type machine
712 pounds dynamic load rating - value for typical 5/8" ball screw

and it spit out a value of 5,639,752,000 inches of travel.

So, unless I am missing something, that's a bit more than 1 or 2
million inches of travel.

even at 150 pounds of loading it comes back with

106,946,408 inches of travel

But frankly, you have to be doing a lot of constant "In-cut" time to
add up that sort of continuous screw loading.

I didn't have time to play any more with it, but I think you get the
idea.








--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Fred Smith" <imserv@...>
wrote:

>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "lcdpublishing"
> <lcdpublishing@> wrote:
> >
> > So, using that information you are providing.....
> >
> > Let's assume (Nasty word isn't it), that we will traverse 20"

every

> > minute in a production machine.
>
> I suggest you google "ball screw life" to understand the concept,

then

> you won't have to assume anything.
>
> Fred Smith - IMService
> http://www.cadcamcadcam.com/hobby
>