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CS-Lab / Re: shifts / offsets after some machining time with CSMIO IP-M
« on: February 20, 2023, 04:10:16 PM »
Your steps/mm are a fixed number and once set should never need changing. A simple calculation gets you the correct figure based on number of pulses for one rotation of the leadscrew divided by pitch.
In most cases upping the acceleration time and/or reducing velocity is the fix. Try doubling the accel time by reducing the value by half. If you set it very low e.g. 25 you will see and hear it ramp up and down.
The other thing to watch is we can have too many microsteps, depending on the resolution you need and the pitch of the screw its not necessary to have more than 400 as this with 5mm pitch screws will give 0.0125mm resolution as an example, the benefit is the torque of the motor it much higher and lost steps are less likely.
The other problem can be the drivers getting hot and breaking down, do you have a good fan blowing over the drive fins?
In most cases upping the acceleration time and/or reducing velocity is the fix. Try doubling the accel time by reducing the value by half. If you set it very low e.g. 25 you will see and hear it ramp up and down.
The other thing to watch is we can have too many microsteps, depending on the resolution you need and the pitch of the screw its not necessary to have more than 400 as this with 5mm pitch screws will give 0.0125mm resolution as an example, the benefit is the torque of the motor it much higher and lost steps are less likely.
The other problem can be the drivers getting hot and breaking down, do you have a good fan blowing over the drive fins?