Originally Posted by
mrk
How do you calculate feed rate for plunging or ramping into stock?
I have had good success with slot and profile milling in XY at feed rates between .003 and .007 IPM. Where I have had some tool issues like snapped or clogged tools is alway the Z movements. Early on in my learning process, I became gun shy in the Z and generally baby things with feed rates of around 25% ramping or plunging movements.
Using these really slow Z movements works fine and I have not had any broken or clogged tools in a while but I want to learn and understand how theory behind programming Z axis movements.
As a rule of thumb, what do you use for your ramping or plunging feed rates?