Hello chaps-- i guess i asked the wrong question.
I understand feedrate and machine power,depth of cut etc.
What i want to establish is the maximum speed that my steppers will be able to
achieve in turning the lead screw.
Graham you gave me a clue- so please let me bounce this off the forum
If I set the machine on a long traverse along the Y axis and measure the time
it takes to cover a known distance i will then know what the current feed speed
is.
Is it right that if i then use motor tuning to set the velocity to say 20% higher then time
the same distance again the timed speed should be quicker on the same distance
If i do this over and over again always increasing velocity in motor tuning - i will surely
get to a velocity which does not change the actual time any longer - this will then be
the "terminal " velocity that that stepper is able to achieve oin that load
?
Then when I am running a program i will usuallly but not always use the fastest feed that
is practical and adjust the finish required by changing the speed of the chuck or the depth of cut ??