I have been messing with my feed speed and RPM. The machine came to us set up and I was unsure where the numbers came from. I found a feed and speed calculator online and with the technical data from my bit book, it is coming back with really lower numbers for my bits.
I am currently set at 16500 and 400IPM on a 3/8, 2 flute, .020 chip load/per flute bit. cutting 3/4 Laminate Particle board 2-sided.
The machine can cut a max of 1000IPM.
It produces alright cuts.. when cutting double LP stuff it tends to try to chip every now and then. The bits also look like they get pretty hot, as well as the sawdust coming out is hot usually.
When I enter my information in the calculator, I get like 7000RPM and 265IPM ? for that bit. The only time I can get it to go up to 16000 RPM is maybe a 1/8 bit...?
Setting the machine to this produces a nice, colder cut, but is much slower of course.
How are you all getting these Spindle RPM speeds? Why is everyone running them so high when the formulas say for the bit diameter and flute sizes they need to be much lower... 1/2 bits on the calculator at 2 flutes is saying 5000 RPM?
Just sacrificing tool life for productivity?
Sorry for the lengthy post.