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Balancing Jet Fan

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Old 12-10-2008, 07:54 PM
  #1  
yetti831
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Default Balancing Jet Fan

I added weight to the light fin. The fan seems to be stopping at different points each time. However, when I spin the fan with my electric drill, it vibrates. What am I doing wrong?!

Thank you.
Old 12-10-2008, 10:11 PM
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r2champion
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Default RE: Balancing Jet Fan

It is very possible that the drill shaft is bent, but don't let that take away from finding out if the blades are balanced properly. I have seen many bent drill shafts.
Old 12-10-2008, 11:06 PM
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w8ye
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Default RE: Balancing Jet Fan

http://www3.towerhobbies.com/cgi-bin...&I=LXD712&P=ML

Rotating devices are often out of balance in two directions

You may need weight on a second fin in the same quadrant
Old 12-10-2008, 11:22 PM
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yetti831
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Default RE: Balancing Jet Fan

Thank you! How tight should the cones be against the fan?
Old 12-10-2008, 11:55 PM
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w8ye
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Default RE: Balancing Jet Fan

Just so there is not any wobble

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