>True, but (at least for me) that presents a rather large construction
>challenge. Plus, much of the work should be precision so that you end up
>with repeatable accurate results. This basicaly ends up scaring me away
>from trying to construct such a beast.

Well that is why I suggest using a small commercial mill assembly, as the
close tolerance work is already done. It should not be a big deal to attach
motors to the knobs that drive the X/Y axis, and get repeatable accuracy.
Something less on the Z axis to lower the motor against a preset stop to get
the cutter depth correct should be easily done with a stepper motor.

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