A wise old woodworker once told me the perfect miter was just an
intellectual concept and doesn't exist in the real world. But having said
that, if you still wish to pursue it -
http://www.woodsmith.com/issues/143/...erfect-miters/
BTW, Google is your friend.

"roger kravitz" wrote in message
...

I am having trouble with kitchen Pelmet and Cornices mitres. the
Material is Melamine covered MDF and I can't get an invisable joint. I
want to know the secret of the perefect Mitre.


--
roger kravitz