Le lun. 19 sept. 2022 à 22:31, Nicklas SB Karlsson <n...@nksb.eu> a écrit :
> Use it on a mill. CSS on a mill ?! 🤔 If diameter of drill is changed rpm will change Yes S = (1000 * Vc) / (Pi *D), with Vc is SS in m/min and D tool dia in mm, and often simplified as S = 318 * Vc / D. > so that surface speed is the same and guess feed normally make very little > or negligible difference. Well, not that negligible actually ! 2 mm and 20 mm tools are different beasts ;) > Tables I have surface speed is the same for > different diameters Yes because SS depends on the "tool/material couple" as we say here, like HSS in Al, Carbide in Stainless Steel. Each member can be sub-categorized like into tool type/tool material/tool coating and material nuances so it make sense even though not very important > though with well written g-code program it is possible to change > diameter of a tool and part is still correctly machined. Of course, parametric programming can do wonders ! Actually, I use the formula above and a few others in my (milling) macros, getting the tool dia from tool data/table :) All my cutting parameters computed based on surface speed, feed per tooth and tool diameter. Still have to find a way to build lists to further improve this... _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
