Ok, question guys. What speeds and feeds do you guys use for ply? I'm cutting 12mm structural ply (3 ply) full depth with a 6mm two flute carbide cutter (also used 2 flute straight router bits) and its squealing away and no matter how I tweak the speed and feed it squeals and then invariably the cutter snaps. My machine is capable of 10 m/min and I've the 2.2kw w/c spindle. I'm trying to cut the words Merry Christmas by the way....

Just wondering as last week was cutting fine with the same feeds and feeds.

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