Re: [CAD_CAM_EDM_DRO] gauge blocks was Re: Rolled Ballscrews

Been there, done that...cutting aluminum is a good reason to have a flood
coolant system.

Smoke

> For any hope of achieving high precision in Aluminum, especially, you have
> to watch workpiece heating by the cutting action. many times I have had
> to stop work when I got close to final size on something critical and let
> the part cool. Especially on my lathe, which does not have flood coolant.
> I just leve the spindle turning at a fairly high speed, and the fan action
> of the chuck jaws sucks air over the part. it sometimes takes a half
> hour to cool, after turning off a lot of material. Sometimes I've seen
> relatively
> small parts (1 - 1.5" diameter) shrink .010" during cooling off!
>
> Jon
>
>