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18-11-2012 #1
Hi, yes it is a bit vage! My cnc isnt highly robust so roughing cuts are usually a 6mm slot drill 0.5 deep at around 6000rpm, usually at 200mm/m. I do a lot of engraving so its usually running flat out, but finding i need higher rpm, so currently finding other solutions. There are calculations that can be used to find the apropriate speeds and feeds, but machine stability limits these.
I currently have a er20 set up as this will cope upto 13mm shanks which is ideal for 1/2" shanks.
Hope this helps.Last edited by totts; 19-11-2012 at 12:12 AM.
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