I doubt it. The forces produced by milling and drilling metals are high. But, if you are only engraving, then it might work.
But, if you can conjure up some kind of handy air brake to apply to the backside of the platter (which will also stabilize it), and you only index while the tool is clear of the work, then it may serve your purpose for actual milling ops.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)