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May 30, 2018

Remote server abandoned for now.

1 comment

I thought my next step after finalizing the existing driver would be to create a local server and split the rain sensor out to a seperate driver. After researching the topic I discovered that the ASCOM instructions make no sense at all (they say create a driver then use the local server template to create a driver from the driver. Problem is it can't work that way. The local server has to be written to talk to the hardware then drivers written to talk to the local server.

 

There's also nothing to make a shutter close if it starts raining when the dome is powered up but there's no client software running (like SGP) so I have to make the firmware deal with the rain sensor and close the dome if it's active, so what's the use of having a separate driver that needs client software running for it to do anything useful?

 

So the driver will continue to simply throw invalid operation exceptions when a commanded action is not compatible with the dome's state (low power, unknown shutter location, raining). My driver has visual indications when these will prevent a command from completing but you'll have to client software's logs for it's report - assuming it logs receiving an exception and logs the description (SGP does if logging is enabled).

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New Posts
  • This is the process i go through to get to the speed settings for the shutter, so a few questions: First I open ascom dome control panel I click connect. Of course it doesnt let you change values unless its disconnected, so i disconnect and reopen the nexdome ascom server monitoring window, hit setup: Seems no matter what values i put below, here 600/1500 etc, the speed of the shutter is the same. I had tried lowering these at first to see if it would help with the motor sticking. Is this the right procedure to lower the values and test? Also, i know there is a much longer thread here about updating the firmware on the shutter/rotator, but, what does the update firmware button here do? At one point i clicked it when only the rotator was connected, it claimed it updated? How do i know if i even need to update either? Both came brand new recently? Thanks in advance
  • I've completed the motor install (although i may be missing parts on the motor related to this, the set key that holds the pin in place was missing, found an m4 for now that seems to hold it but the pin doesnt go in fully, see this thread for more details) https://www.nexdome.com/forum/observatory-automation/shutter-motor-missing-key-set-screw-locking-pin-wont-go-in-fully-track-shredding First issue (or maybe not), when i push the motor and it moves up, i think when the panel that has the band through it goes under the first panel, half way up, it sticks for a half second, flexes and pops and keeps going. After this at times on the way up, even during the first half, sometimes the motor stalls briefly. The biggest issue is after its up fully and you bring it down, the first 16" or so going back it stalls and moans repeatedly, however, interestingly i can work it forward by doing an on off real quick multiple times, OR by pressing upward on the motor. Here is a video clip of the stalling (most of it near the end): https://www.youtube.com/watch?v=nCtvALmB6zU At this point i took all the wheels off the rear, added washers, so now they have quite a bit of flex available. The retention bracket is installed, but i had my son work the motor while i pulled back on the bracket and wheel on one side only, no change. When you pull the panels in the rear when its up there, apart, you can see grinding marks on each panel on the sides. So at this point i'm left with removing the retention brackets on both sides as a final test, and to be able to get the panels apart to add antifriction tape someone recommended. It appears the front panels will need to come off (not the rear solid non moving one), then apply tape as here: Here is an external view of the situation: https://www.youtube.com/watch?v=rNHI3KzOkbw This is the antifriction tape i've ordered (1" x 15 feet, two rolls,TapeCase 423-5 UHMW) : https://www.amazon.com/gp/product/B00823JF0S/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 I dont know what else to try, other than what i have planned at this point. Pretty frustrated. Incidentally, i have the inside dome rotation working pretty solidly, so this is the only sticking point, pun intended. Thanks in advance.
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