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  1. #1
    carlosgib's Avatar
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    Default Pulsar Dome - degrees out after calibration



    Hi Group,

    Having complete the installation of my Pulsar Dome observatory and have the drive automation unit installed and program as well, I managed to calibrate the drive after changing magnet so that the encode could read it better and after a single rotation it was calibrated. I am using both Park and the Home position at the same angle of zero degrees (basically pointing polarize). The dome shutter window center points to Polaris (already done a polar alignment), so my mount is at zero degree before I started the calibration.

    However when the calibration was completed the drive panel screen showed 358 degrees and is spot-on the center of the shutter window, if I instruct the dome to move at zero/360 degrees it will move away from the shutter center.

    When I originally installed the Drive and the encode I am pretty sure that I place the encode wheel to zero degree and the shutter window was centered to the mount/telescope position.

    So, the question is, does it matter being a few degree out when I eventually slew to a target, or I can compensate somehow when setting up the Slave parameters, say on the North offset.

    Any suggestion will be appreciated.


    Carlos

  2. #2
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    Default Re: Pulsar Dome - degrees out after calibration

    Since this is not a thread with an AP image, I am moving this over to ATM, in the sub-forum for Observatories.

    Joe
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    Default Re: Pulsar Dome - degrees out after calibration

    I mentioned on the other forum about checking your dome-mount measurements.

    You don't say what software you are using, but it is extremely unlikely that any software would require you to install the home sensor magnet at exactly 0 degrees azimuth. Which means that it almost certainly allows you to specify the actual azimuth of the home sensor. So if it looks like your actual home position is 358 degrees, just tell the software that, and it will be happy.

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  4. #4
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    Default Re: Pulsar Dome - degrees out after calibration

    Hi Carlos

    I am looking for a new observatory to replace my old and worn building.

    Pulsar domes seem to be a good choice for me.

    Are you satisfied with your observatory and would you advise others to buy one?

    Regards
    Lars

 

 

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