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PSA: Tried a 0.001 offset on my finish pass and got a rougher surface than before
Last week I was running some aluminum parts on my Haas VF-2 and thought I'd get clever with a tiny finish pass offset. I set it at 0.001 instead of my usual 0.010 (you know, trying to save a little time). The cut came out looking like sandpaper instead of a mirror finish. Ended up having to re-run the whole batch of 12 parts, which cost me about 3 hours of cycle time. What I learned is that 0.010 seems to be the sweet spot on my machine for aluminum with a 1/2 inch endmill. Has anyone else had weird results trying to go too shallow on a finish pass?
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