Homebrew PCBs

>  Of importance in a spindle, this is what I found to be important:
>
>  * MINIMAL spindle runout - it the drill bit wobbles it will break!
>  * Spindle must be perpendicular to the table!
>  * Easy change of tools - it gets to be a pain when using collets
>  * Good spindle speeds - Don't get too caught up in the 100,000 RPM
>  speed recomendations. You only need that speed if you want to drill
>  the holes at a fast feed rate. You can drill perfectly fine at 1500
>  RPM- just use a slower feed rate. For hobby use if you can get
>  somewhere between 2000 and 10000 RPM you are in pretty good shape.
>
>  Chris

Chris,

I was wondering if a Foredom type handpiece might be sufficient. They
are definitely built to a higher standard than Dremel. They have some
that take collets and have a nicely cylindrical body for easy
clamping. I think I might order one and see how good the runout is.

Neil