"TD Driver" wrote in message
I need to cut a dado in a hunk of melamine veneered MDF. Trial cut
using my dado set yielded a lot of chip out. Using a zero clearance
insert. Any instruction, tips, hints, to eliminate the the chip out
will be appreciated. TIA and Happy Holidays!!

Score it first...
Tape the cut lines...
Use a router...

You're choice, suggest you do some test cuts first whichever method you
choose.