A little advice needed. I’m basically milling a big pocket, about 1/2" deep, into 3/4 inch plywood. The area being cleared is about 8x10 inches, so I’m using a quarter inch two flute endmill. When I set it initially to 0.125 depth of cut at 60 inches per minute, I was getting quite a lot of chatter when the bit was moving left to right. Not so much when moving front to back around the square. So I started over with a depth of .062 inches, and 100ipm. The chatter is less, but still there.
What settings have you used successfully on birch plywood? I don’t want this one large pocket to take forever to cut, but I don’t want to kill my bearings and shake all my v wheels loose in one shot, either!