jon wrote:
I'm aware that a piece of wood (I forget its name) can be used to
prevent the break out as a router bit exists its cut from ruining the
work piece. I have a "breakfast bar" that needs finishing using a
router. This has both edges finished as a curve making the use of a
sacrificial piece of wood difficult/impossible. Anyone know if routing a
worktop like this will cause problems or does chipboard behave
differently anyway?

Thanks,
Jon...

If you're trying to route a curved end on a postformed double-edged
laminate worktop you need to work from each edge towards the centre, for
one half the worktop needs to be upside down so that the cutter is
working on the correct direction.

Dave