Is this a silly idea

I am thinking of building a small CNC mill and looking at X-Y tables
construction is difficult and good ones are expensive.
One though I had was that rather than have an X-Y table as the base of
the mill what about a X - theta table.
i.e. a rotary table on a cross slide, no Y movement at all.

As far as I can see this would be a lot simpler to make as small rotary
tables can be purchased relatively cheaply.
With CNC control it should be possible to duplicate any cutting move
that could be done on an X-Y table as well
As a number that would be difficult to do on a straight X-Y table.

About the only down side I can see is that I would probably have to
write the software myself to control it ?



Chris Cain





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