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Author Topic: Using Unipolar (28byj) motors but only turning in one direction (Solved)
unknowntot-
hem
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Post Using Unipolar (28byj) motors but only turning in one direction (Solved)
on: April 27, 2013, 18:47
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Hi All, great forum,

Well tried building my own polargraph using 28byj unipolar motors but for some reason the motors turn the required amount etc, but only in one direction 🙁 . Any ideas would really be appreciated.

regards

Image
Image
sandy
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Posts: 1317
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sandy
Post Re: Using Unipolar (28byj) motors but only turning in one direction
on: April 27, 2013, 18:59
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Hi there, welcome 🙂

I've never used unipolar motors, but from what I read (http://learn.adafruit.com/adafruit-motor-shield/using-stepper-motors) they still need to be wired up the same way as the bipolar ones, but with the extra connection to the ground.

good luck
unknowntot-
hem
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Post Re: Using Unipolar (28byj) motors but only turning in one direction
on: April 27, 2013, 19:54
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Sandy, you are a champion!! Many thanks!!!!
unknowntot-
hem
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Post Re: Using Unipolar (28byj) motors but only turning in one direction
on: April 28, 2013, 19:01
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I have seen some of the wicked polargraphs that others on this forum have built and even though I know my child is the fat ugly kid in the group, I feel like a proud dad and so I have put together a clip of my 1st "proper" drawing. When I get home and have access to tools again, I will definitely build a proper polargraph!!

http://youtu.be/P9F-RNjnZgU
sandy
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sandy
Post Re: Using Unipolar (28byj) motors but only turning in one direction
on: April 28, 2013, 19:20
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Looks good to me! Congratulations!

sn
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