I have been jumping back and forth between some hardwood offcuts lately but do the majority of my projects from 12mm Birch Ply. I’m trying to figure out why my most recent cuts were screaming so badly.
Using a 1/4 DC end mill to cut out door panels (Roughly 600mm x 400mm). My RPM stays at 18k (Makita 3) for my 1/4 DC end mill. My feed rate was 100imp and I was doing 4 passes to cut through the 12mm material.
The cuts come out looking beautiful, I’m just wondering how I could tweak these toolpath settings so that it doesn’t sound like I’m breaking something. Going to be doing a lot of them, so would like to make sure no damage is being done.
When I look at the Amana specs for their bits - for the the bit in question - they suggest 60ipm for plywood… this conflicting info varies rather dramatically…