Hello All Any general thoughts...rule of thumb...on how much of a change you have on feed/speed going from pine to say oak?
I run both the same (2500mm/min) with the depth of cut 1/2 the diameter. For 3D carves where the roughing pass is only doing a 40% stepover, and the smaller 1/8" ball nose endmill only has a stepover of 10%, I speed everything up to 3000mm/min with DOC 1/2 the diameter of the endmill. I could probably cut faster in the softer woods, but then I would have to redo the speeds on all my endmills in my cam software or create another copy.
Well my hope was that I could run them both the same even if it meant being a little slower on the soft woods. I'm not in a race lol. I prefer things be simple as possible. Thank you for the response Craig
While running the job, if you chatter (too fast) or burn (too slow) - there's always the FEED OVERRIDE sliders in CONTROL - bump it up to 200% speed or down to 50% (half or double speed and anything in between) to compensate on the fly
I have actually used that a couple times So one question I do have about noise...there have been a couple times i was cutting and it was on probably the second to last pass on a cut just shy of 1 1/2" and the noise sounded to me like the bit was screaming like it was struggling and it was trying to really push the wood. I had the workpiece in place with dowels I could tell it was really trying to just rip the workpiece out of place. It was on a straight run of the cut.....I interpreted this to mean it was pushing the feed too fast and it wasn't able to cut properly. Is that a correct assumption? Also thought maybe there was some play in the workpiece so it was binding up.
Sounds like it was a little fast, but the nice thing as you develop intuition, is to go with your gut feel, dial down a little, if it sounds worse you can always bump it the opposite way real quick
I use the RoutER11 on mine. I do as Peter said and monitor it, then adjust the speed dial on the router up if it sounds like it is struggling before I walk away. I do run the speed a bit faster on hardwoods. On my CNC lathe, I always run the first pass at higher rpms because I am usually staring with octagonal stock. In other words, I trim my square stock on the table saw to remove some material. But, it is still cutting more material on that first pass than what Vcarve thinks is there. I do the same if I am carving from a tree limb/firewood log because I use the smallest diameter of the material in Vcarve, so for that first pass it is cutting deeper.
