how to tune the motor
- Pick a start velocity , leys say 10 ipm and an accel of 1 , jog the machine, will assume it didn't skip
- Now double the velocity and accel....20 vel / accel 2, " "
- keep doubling the velocity an accel until it skips ie, 40/4, 80/8, 160/16 willl assume it skips
- now lower to say 120 / 12, assume it ships
- now use 100 / 10 and assume it doesn't skip
- so now increase by 10 to 110 / 11........lets say it skips
- so lower by 30% or more , say 75 / 8 , i like to be conservative and leave enough "headroom" for machining tasks so that the axis will
not skip for the maching tasks that i will do.
- At this point you play some with the accel by jogging in smaller moves
Doing the above, you have found the max velocity and acceleration when doing a rapid where the machine will not skip. By reducing the values
you are trying to make sure that your machine will be reliable when machining. You should test the final setting some by jogging in small and long moves and by actualy cutting different materials.
How fast you can accelerate and decelerate depends on how your axis system will react to the load it is trying to move or stop. A velocity of 0 to max & from max velocity to a stop in a some distance.
Hope this helps,
RICH
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