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Generally, when I encountered the humming it meant that the various poles on the motor are not being enabled/disabled in a sequential order or that you are not using a high enough voltage to get the motor to turn. I had a bit of trouble getting the 5V motor I used to nicely rotate with 3.3V logic.
Hi MordiemerM,I would personally go with the B series (presuming it's not a huge element you're working with) since you can still use the B series size for some (not all) precision work as well as the larger components without taking too long or burning anything out. They're pretty versatile in that way.
Making awesome art for your...View Instructable »
Hi quinnsullivan,Oh goodness, I haven't gotten back to that! Thank you for pointing it out. I eventually got an account (apparently by not clicking to agree to the terms and service, having it tell me I needed to, and then clicking it). I uploaded the project to there now, but I'm still waiting for it to finish uploading and give me a final url. I'll post back when I can see it.
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