I've reached the point where I am ready to purchase my drive components. I am using a Gecko 540 with 425oz steppers on the Y and Z axis, and 2 slaved 283 oz on the x. It will be a belt drive on the x and y. I am ready to purchase the timing pulleys and have a question on the optimal motor speed.
I calculated the steps/in at 4800 for a 3:1 reduction and 8533 at 4:1 reduction. With a cutting speed (estimated) of 50 IPM this gives a rpm of 120 at 3:1 and 213 at 4:1.
The motors sound fine at either speed although they seem (purely subjective) smoother at the 4:1 reduction. However, they don't have any load on them at this point.
Is there a optimal speed that stepper like to run at ?? I have room in my design to go up to a 6:1 reduction if necessary although I really don't need that kind of accuracy.
Thanks,
Willy