gauge blocks was Re: Rolled Ballscrews

Les,List,

The price of full 81 pc. "B" grade(shop grade;+-/50 millionths)Gauge
block sets (Jo-blocks) has come down so far as to make them a good
choice for a serious hobbiest. Going this route will cost a bit more
than 30 bucks(about 80), but you also will have a VERY accurate
standard for all your precision measurements... And you didn't need to
buy the ground stock, and spend time sanding/sizing. A smaller set is
also available for less money, but I'd go for the full 81 pcs. (It's a
"once-in-a lifetime" type buy)

If you are not familiar with Jo-blocks, you will want to read up(try
Lindsaybks.com) or have an experienced person show you how they are
used so you don't destroy the precision you just paid for...

Hope this helps.

Ballendo

--- In CAD_CAM_EDM_DRO@y..., "Les Watts" <leswatts@r...> wrote:
> I will repeat the inexpensive way I use to map ballscrew errors:
>
> Buy a 6 and 12 inch micrometer test bar. These are a very
> precise length standard. I think I paid about $30 for the 12"
> at MSC.
>
> These can be "cloned" with<snip good description>