Re: [CAD_CAM_EDM_DRO] Ballscrew question

>... how do you determine what's up with
>backlash? What's an acceptable amount of it?

You can measure backlash with a dial indicator. Set it up to measure table movement in the direction you are working with. Turn the screw in one direction (slowly if manual, or .001 jog). Bring the indicator to a known spot (like zero). Advance the screw in the other direction until the table just starts to move. The amount it should have moved minus what it did move is backlash.
How much is acceptable is up to you and the tolerance of the work you do.

Ron Thompson
Was On the Beautiful Mississippi Gulf Coast,
Now On the Beautiful Florida Space Coast, right beside the Kennedy Space Center, USA

http://www.plansandprojects.com

The ultimate result of shielding men from the effects of folly is
to fill the world with fools.
--Herbert Spencer, English Philosopher (1820-1903)


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