Re: [CAD_CAM_EDM_DRO] High speed spindle chuck

Wally K wrote:

> What are people using for chucks for thier high speed spindles used
> for engraving and PCB routing.
>
> The spindle itself does not seem to hard to make. Bearings rated for
> 30K RPM or so are easy to find in catalogs.

My air bearing spindles (made by Westwind in Britain) have a
centrifugal collet. All you do is turn it on, and the faster it spins,
the tighter it grips. These are pretty common on the higher-end
PCB drilling spindles, which is what these were made for.

Jon