For the life of me I cannot figure out the correct speeds and feeds for my CNC. I have an Axiom Elite 2'x4' CNC and am testing on multiple materials. I have been using two flute end mills, carving bits, etc. My main issue is when running the 2 flute end mills I am getting a screeching noise. I believe this means my speeds and feeds are off. I am using the manufacturer recommended settings. For example, the 2-flute 1/4" end mill I'm running at 18,000 RPM's and a feed rate of 100 IPM. Does anyone have any suggestions?
I'm not getting any issues with this with v-bits, just the end mills. Will switching to a 4-flute bit help? Thank you, any help would be greatly appreciated!
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