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    TomM
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Obsession II & Rosco I-Cue choppy live move

Hello all,

We are running Obs II 4600 5.1.1

Rosco I-Cue mirror fixtures are displaying move/stop, move/stop, move/stop, etc behavior during a live move, 10 sec fade time.  Cycling about 2 stops/sec.

The fixtures are set to 16-bit operation.  ML personality is set for 16 bit (Pan, Pan Fine, Tilt, Tilt fine)

Operation is smooth using encoders, and choppy only during cue playback.

Behavior is the same in both DMX & eDMX environments.

DMX transmission speed is set to MAX.

 S4 Revolutions and VL 1000s in the same show do not exhibit the same problem.

Has anyone had a similar experience and hopefully a workaround?

Cheers,

Tom

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  • I had another idea after reading this on the Rosco website:

    # First Channel - Pan Course[sic] - 0.9 degrees of Resolution
    # Second Channel - Pan Fine - 0.028 degrees of Resolution
    # Third Channel - Tilt Course    [sic] - 0.225 degrees of Resolution
    # Fourth Channel - Tilt Fine - 0.028 degrees of Resolution

    Can you re-hang the Roscos so that most of the motion comes from Tilt instead of from Pan?  I know it sounds dumb, but there's a big difference between .9 degrees and .225 degrees.  You already know what the show consists of, so you know the amount of floor space that has to be covered.  At the same time, you could try to increase the amount the mirrors have to move for the bad fades.  But for small movements over 10 seconds, you will still have the problem.

    I see that the units do not have an M-Speed capability. 

  • in reply to tbuchman
    I have moving mirrors that are an off brand, and I have found that I need to slow down the DMX in order to make the choppiness go away. I usually have to set the port speed to Medium. I dont have experience with I-cues though. The problem usually shows up when I use nodes rather than going straight out of the console.
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