RE: [CAD_CAM_EDM_DRO] Ball Screw Crackle Crackle

My balls crackled on my Shoptask (rolled screw no preload) when I first
put them in. It eventually bothered me enough I tore it apart and looked
into it. Ended up being that I had the nuts skewed slightly to the
screws. After I made new adapter collars with the threads square to the
adapter the noise disappeared.

Tim
[Denver, CO]
Sherline products at Deep Discount
Mach1 & DeskCNC with credit card ordering
www.KTMarketing.com/Sherline

> -----Original Message-----
>
> My newly installed Ball Screws have a disturbing
> ball crackle.
>
> This being my first experience with Ball Screws,
> I'm not sure just how normal this is?
> Somewere I've gotten the drift that a certain
> amount of crackle is ok.
>
> I'm using Rockford 5/8" with Preloaded Ball Nuts.
>
> When hand cranking:
> Alignment is good and no noticeable binding and
> travel is smooth and easy. Except I can lightly
> feel the Ball Crackle.
>
> I adjusted the Preloaded Ball Nuts by turning the
> adjustment screw until the Wave Spring Washers were
> flat, and then backed off just a little.
> I made sure everything was spotless clean and applied
> just a small amount of grease to the threads.
>
> They crack useally only when I reverse direction for
> a few turns.
>
> Tom M. (The Faint at Heart)
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html