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Hi,</div>
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I have experienced the same thing a few months ago (I haven't got to trying it again due to the bad weather in the Netherlands). I am also a big fan of KStars/EKOS. I use an RPi-4 with Rasbian and the latest KStars installed. I have a SkyWatcher HEQ5-Pro mount
connected to it.</div>
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I also noticed when using the Polar alignment function that my mount didn't stop slewing. The first time my telescope did hit the mount. Luckely it didn't damage the mount. I had to manually put the mount in zero position and realign the mount again (using
3-star alignment function on my mount). I did restart my RPi-4 if I remember correctly and then after connecting KStars again to my mount, I tried the polar alignment again. And again I noticed the the mount did not stop slewing. It continued for more then
100 degrees, until I manually stopped the motion by clicking the mount stop button in the KStars mount control window.</div>
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I retried the polar alignment several times, going west, going east, I even tried reducing the rotation angle to 15 degrees instead of 30, but each try the mount kept rotating without stopping. Eventually I gave up for that night and didn't had a change to
try it again afterwards.</div>
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In the past it had worked fine. I am now a bit reluctant to use it again when I am not near my mount to stop it. I hope there is a solution for this.</div>
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Kind regards,</div>
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Patrick<br>
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<span style="font-size: 11pt;">----------------------------------------------------------------------<br>
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Message: 1<br>
Date: Fri, 15 Dec 2023 19:57:38 +0000<br>
From: Keith Hoard <klhoard@proton.me><br>
To: "kstars-devel@kde.org" <kstars-devel@kde.org><br>
Subject: Question about Polar Align function<br>
Message-ID:<br>
<9P2NQV0plSFqHLn1RV9XhMf1RIBO0W05vO6O-jsdsSggtjlZ2EyZV2n6ngrdL-7F4gMpvxKkKPLtifBAgPaDb74Md1B9Bn_9EZEIzQtUxxM=@proton.me><br>
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Last night was my first night I got out with kstars/ekos. I'm using the Stellarmate image on an Rpi-4. My mount is a HEM27EC.<br>
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When I was using the Polar Alignment function of ekos, it went thru its normal 2 RA rotations and 3 exposures. After the last one, the system seemed to halt and I didn't know if it was my VNC connection or the Rpi since I was in backyard using home wifi. The
mount RA axis was rotated approximately 80 degrees westward.<br>
<br>
I clicked "Start" button again and the PA routine began to rotate the RA axis more westward and I was able to turn off the mount power when the axis got to about 100 degrees rotation. Luckily I was right there to do that since the iOptron HEM mount will damage
itself internally (and very expensively) if it is rotated past 120 degrees or so.<br>
<br>
Of course I'm checking if there is a setting inside the mount to prevent this from happening in the future. However I am also curious if there is a setting in the Polar Alignment function that checks where the RA axis is before it begins slewing? Perhaps it
may be as simple as having the PA function begin with a "Find Home" command before commencing the RA slew commands?<br>
<br>
So far I am really liking kstars/ekos for control of my setup. I started with ASIAir, then went to NINA/Intel NUC, and am now on ekos/Rpi-4 and learning the operation of the system.<br>
<br>
-Keith Hoard<br>
-klhoard@proton.me<br>
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