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MultumInParvo

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Everything posted by MultumInParvo

  1. Hey Dave - What's that blue stuff at the top of your picture? I need to sort out my roof automation but each time work allows it's either still raining or there is black where the blue should be...
  2. I have mine connected to an IKEA Tradfri plug so I can turn it on and off remotely via Google Assistant, but any wifi plug would do the same job, I just had these bits hanging around. It turns the whole rig on and off (cameras, mount, roof automation, two SBCs,, dew heaters, etc) so saving a fair bit of electricity (and a little of the planet's resources) over time I would assume. I have run a cable up to the obsy as wifi has a limited bandwith, dependent on what you buy, and is affected by simple things like leaves on trees. Will the mini PC just be controlling things and then
  3. Good that you picked up C24 graded timber, much stronger and less chance of it being/going wonky, although Wickes have sold me all sorts of curly wood over the years, they are happy to take it back if it is shoddy. I bought some end grain treatment at Toolstation for a few quid.
  4. Slowly but surely, things are moving forwards. The ED80 is atop the mount, focusser added, everything is hooked up and now testing from the warmth of my study over VNC where I can remotely turn the power on and off thanks to Ikea's Tradfri remote-controlled plug and google Assistant. I have taken the lead of @Magnus_e and @Gonzo and am running a RPi 3B+ which will control the numerous gizmos and an Odroid N2 which will do the imaging and processing, and these are running Ubuntu MATE 18.04 with various Astro software on them, but mainly Kstars/EKOS. This was all facilitated by Rob La
  5. Was just posting Alan, you are clearly telepathic! Work has been ongoing, but I have been posted first to Northampton and now to Edinburgh, so progress has been slow. I do now have a building and a sliding roof, although manually operated at the present. I have the materials to insulate the inside and clad the outside, but all in good time. The mount is on the pier and the power case is stood against the pier, and once I have completed the commissioning of the two SBCs that will control the automation and the imaging this weekend I shall attach that to the other side of the p
  6. I spent some usef time with good old-fashioned best guess followed by trial and error, and it would seem I have an Odroid N2 and a Raspi 3b+ now with Ubuntu MATE 18.04 and the latest Raspbian on them. I ran the scripts helpfully compiled by I spent some usef time with good old-fashioned best guess followed by trial and error, and it would seem I have an Odroid N2 and a Raspi 3b+ now with Ubuntu MATE 18.04 and the latest Raspbian on them. I ran the scripts helpfully compiled by Rob Lancaster (https://github.com/rlancaste/AstroPi3) but ran out of time to test them before I had
  7. Thanks Cedric, that helps. Funny that there seem to me multiple ways to skin a cat in Linux...
  8. One for both @Gonzo and you @Magnus_e: Getting down to commissioning the two devices for control imaging as per your build Magnus, and wondered if you both have favoured distros? Is there any software beyond the distros that you find essential or useful? I have an odroid N2 for imaging and it comes with Ubuntu MATE on its 16Gb eMMC card, the other is as Raspi 3b+ that has nothing on it at the moment. As an aside, despite having worked in technology for 34 years, I have never really come into contact with Linux and I find I can't even tell how to get the version number out o
  9. Actually, I seem to remember that someone I had been following for his automated obsy build uses KStars, will take a look
  10. This is a very interesting thread, virtually the same question as the OP, but from reading some comparisons of software, some is a little tougher on the brain to get into. For background, I work away from home a lot and am constructing a remote obsy that is going to be very automated - better to dial in and look at things from a hotel room than stare at Netflix... I have a Raspi for automation of the roof and anything else and a slightly more powerful linux mini box that could be dealing with capturing, but I have desktops and a server sitting idle that could run more powerful packag
  11. Lots of prep work now done, inclcuding making the door swing inwards, which took a surprising amount of time and effort, but finally levelled the last of the concrete at 9:15 tonight... And not too far off the bubble: I had quite forgotten how bloody hard it is as a solo job even with a mixer, and with 48 bags of ballast and cement in there I'm pretty sure I'm going to ache tomorrow...
  12. Hi Graham, I went with the FH Brundle track and, suprisingly, they were cheaper than anyone, ebay included, and they had all the other bits I needed such as 3m of 12mm threaded rod, again cheaper than elsewhere. Thanks for the pic, I guess I need to get myself some aluminium plate, missed that off my shopping list. The bit I am most interested in is the automation of the system. I am indeed using the one from ebay, and plan to control it with relays and limit switches. Any photo's or diagrams you have of what you have put in, including the position sensors for Ascom would be r
  13. On the wall/peir height question, I have =been doing some thinking and measuring. The first challenge is that I need to position the rear roof track at about 2.2m to clear the workshop door: And I wonder if having the walls lower than anticipated would cause wight issues for the automated ROR design I intend to follow: If I were to position the walls as per my calcs (ground not levelled so only roughly done), based on a tripod height of about 1280mm, and a demand of at least down to 20 degrees above the horizon I could have 1800mm walls: But the eastern wall w
  14. @Magnus_e - you mentioned some usb relays in your list of parts for "Observatory Technical", anything special about these or are they just this type of thing? https://www.ebay.co.uk/itm/8-way-8-Channel-DC-12V-Relay-control-board-relays-Module-For-AVR-ARM-Development/152240067348?hash=item2372371314:g:1l8AAOSwxblbPch-
  15. Tyvek is here, enough to cover my whole workshop before I put up the featheredge on the remaining threee sides... Celotex is to be collected tonight. Now it's stopped raining I'll do my sighting @JamesF @LongJohn54 - Great minds are clearly thinking alike, either that or we both scoured the same forum and stood on the shoulders of giants, but I'm sticking with the former. I plan to keep anything mains related out of the obsy as it attaches to the workshop, and the door into it will be from in there, so now I just need to plan for a pipe to bring USB and 12v back to the wor
  16. Any suggestions on the type of barrier? Lots of different ones like Tyvek, foil, and others like DPM, of which I have a fairly big sheet that would cover the obsy walls. It has a few nail holes in it as it was used in an emergency covering job last year when I was extending my workshop, but assuming that this is belt and braces behind the OSB, so may be ok? I think that insulating the roof is a good idea, may get some 50mm celotex, I need some for cutting sheet materials on anyway, last one was so well used with all the 8x4 sheets I have ripped in the last 6 years that it barely
  17. One question I have is about vapour barriers and insulation - what are the pros and cons? I don't see condensation in my workshop and the obsy will have a similar construction - concrete/paving slab floor, timber frame, feather edge clad OSB walls and roof, with roof topped with Onduline. There is plenty of ventilation in the workshop, so this may be a factor, and I was assuming I would adequately ventilate the obsy so that it was at roughly the same temp as outside. Love some input on this before I put the OSB up this weekend...
  18. Good luck with the planning, it was a critical element for me, and took time to muill over the best way forward. I have had nothing but good advice and helpful comments from the members, and I'd highly recommend posting a new thread to garner opinions and encouragement for your build. I'll keep posting links to the threads that have inspired my decisions so hopefully this will assist in your planning in some small way. All the best, Ian
  19. Thanks for that James. Being so green, it's hard to know what's useful or not without input from the experienced. My thought of not showing the lower 20-30 degrees above the horizon was down to some input I got last year, and also thinking that having protection from wind would be a good thing, but I knew there had to be a good reason why I didn't see this kind of build... I'll do as you suggest and set up the tripod and mount with some timber for sighting, and build a basic framework and post some pics. Ian
  20. Hi James. My back thanks you for that in advance... Yes, if you were looking as per my first photo, it will slide off to the right, and will be at a height such that it falls back onto he existing roof behind with a decent overlap to help avoid rain or snow driven by the north wind. I think I picked up from your build (or could have been @Astrokev) that I need to deal with the possibility of water leaking in around the rails, not sure if I will have the same issue as I am using some spare Onduline I have laying around rather than EDPM, but was going to ask you about that.
  21. End of day 1, hole is now 700x700 and 450 deep, thinking I need to get down another 250, but wonder if this is sufficient still, but I'd rather it be overkill than keel over so will see how my back feels in the morning... First bit of good luck. I found two brake discs locally that fit beatifully in my 150mm tube for only £9.50 (search for "Brembo 08-4962-10" as they fit all sorts of vehicles), bit of surface rust but will come up nicely when painted: Thanks to @mhard26339 and his thread for this idea - New observatory in Norfolk An early start tomorrow preparing these and
  22. Absolutely Alan, she's at the heart of the rig...
  23. And we've never been seen in the same place at the same time... Have you started a build yet or just gathering info?
  24. Hi Simon, Welcome to SGL! I'm in Kent too, near Ashford, so as I'm East of the Medway, I'm a Man of Kent... Clear skies, Ian
  25. After much reading and questioning of others, and work and health interrupting things, I am starting work on my home obsy. The basic requirement is to have a remotely operable DSO imaging rig that I can learn with, due to the fact that I work away from home so much. I have an NEQ6, an Evostar 80 ED DS pro with an Atik16HR with a starlight express filter wheel, an ST80 with an atik16ic as a guide scope This led me to consider many threads, for automation noteably those by @Gonzo (Remote unmanned pico observatory) and @Magnus_e (starting summers observatory project, but also stand
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