One of the biggest problems with this project has been reducing the noise made by the stepper motor. A stepper does not spin smoothly like a conventional electric motor, so it will be louder.
I struggled with the steppers and gearing trying to reduce the noise to a managable level. I think I have succeeded.
On this page you will find links to various methods I have employed. Click on the image to go to that particular page.
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Here is the nearly final version of the drive (mk IV).
An overall description of the methods used is on this link. |
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The "rubber" gear.
Here's how I made a sprocket with a flexible center. |