Re: [CAD_CAM_EDM_DRO] formula ?

I don't think this is correct.

At 06:14 AM 4/15/02 +0000, you wrote:

>docholliday01201 wrote:
>
>> once again, who knows the formula for converting rotational torque at
>> the motor-to linear force at the table ??
>
>Its really simple. Consider the leadscrew to be a drum pulling a string,
>where the circumference of the drum is equal to the lead of the screw.
>If you have a 5 TPI screw, that is the equivalent of a drum with

circumference

>of .200 in, or .0637" diameter or .0318" radius. If the motor produces 10

In-Lb,

>that is the same as 10 Lbs pull at a radius of one inch. This will translate
>to 10 / .0318 = 314.16 Lbs linear force on the table! Pretty amazing, these
>ball screws!
>
>Jon
>
>
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Regards, Hoyt

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