Shutter out of position on mighty scan

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One of our mighty scans has an issue. when I enable strobing on with the shutter the shutter blade will gradially go off position until it starts tapping the side of the case ( very loud and annoying ). I have already ripped this fixture apart and tested it with my stand along DMX tester, and it still did this, so we can rule out any faulty DMX cables. I also checked the alan screws that keep the shutter on the axel of the stepper motor. They were tight. At this point I think it could be a bad stepper motor. Any thoughts?

2/23/117:01 PM

Original Post

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