I can speak highly of Crankorgan's plans and support. The plans are
well documented. His support website is among the best.
--- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@k...> wrote:
>
> Hi All,
> I sell plans for two kinds of CNC mills that have been used
> for milling and drilling PCB. They both use Derin Gibs and Gibs.
> Neither uses homemade DRILLED DELRIN bushings. Gibs and Jibs can be
> adjusted at any time so there is no play unlike homemade bushings that
> may be too loose or bind . Both machines can be built using simple
> hand tools. Both machines can be built for around $100 minus
> motors-drivers and software.
>
> John
>