Vince, that’s great advice. I’m curious what DOC/WOC you’re able to achieve using multi-flute cutters in your roughing passes. I know you’ve mentioned you have very high MRR before and that’s really what I’m targeting right now. I realize I’ll need to go back in and do finishing passes. I’m not expecting perfection on a roughing pass, I just feel like the surface finish I’m getting is indicative of a problem.
Part of where I struggle is not knowing the limits of the machine. Is 5 cm^3/min an unreasonable expectation for this machine?
I have tried to use the gmack calculator before, but honestly I got worse results when trying to adjust based on it, so I sort of gave up. I’ll have to give it another shot now that I’ve got more experience.
To be clear, I am running an HDZ on this machine, but still have an MDF work surface. Do you think part of what I’m seeing is the lifting force of the cutter deflecting my table and causing some of this issue? If so, I’m not opposed to upgrading to a 5/8 aluminum bed.
I’m going to run some more tests tonight with a shorter single flute end mill and a 3 flute.