Mach 3 step problem

[nenetwork]

I have tried to calibrate the axis, but when it sets the steps my motors won't turn and just make a really funny noise.

They turn ok at 2000 steps but anything over 2800 and they wont move, is there a forumula so I can work out what velocity and acceleration is needed for 4000 steps?

At present when I want it to move 1 inch, it is only moving 0.25 inch or less.

Thanks.

[Kipper]

I have tried to calibrate the axis, but when it sets the steps my motors won't turn and just make a really funny noise.

They turn ok at 2000 steps but anything over 2800 and they wont move, is there a forumula so I can work out what velocity and acceleration is needed for 4000 steps?

At present when I want it to move 1 inch, it is only moving 0.25 inch or less.

Thanks.

Not making much sense...What's the pitch of your screws and what reduction if any and keep an eye on the accel rate in Mach...Also the step rate would be good...And why inch system?

[nenetwork]

Just looking for a formula to calculate the Mach 3 motor tuning.

Edit

Forgot to add, I was able to work the issue out, thanks for your reply though Kipper.