I know this varies with each setup, and material, but I was just wondering what people consider good speeds. Currently, while I am still playing around with plywood, I have been doing 8mm/s with 1/16" DoC. A couple times though I bumped up the speed with Repetier host just to see what I could do, and I was able to run faster. I am sticking with my current settings for now though while I am still learning, but thought it would be good to know what my expectations might be in the future.
The general guidance for wood is to cut deeper and slower. Deeper means you are using more of the cutting surface of the bit rather than wearing out only a small part of the bit. And, because you are going deeper, you need to have slower speeds. I typically have a depth of cut (DOC) of 3-4mm with X and Y speeds of somewhere between 600 and 900 mm/min (10-15 mm/second).
https://www.guhdo.com/chipload-calculator
So how accurate are calculators like that? The DW660 runs at 30,000 RPM, so it’s saying for 1/8" depth of cut on soft playwood, that I should run around 125mm/s. That doesn’t seem right at all. Are those rates for like rock solid high end CNC machines?
Yes.
Have a look here, and there is a more reasonable calc as well.
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I’ve looked at that page a number of times, but forgot there was a link to calculator there. Those values do look more much realistic, though still faster than I think I am comfortable even attempting at the moment.