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Tomatobro

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About Tomatobro

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    Proto Star

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  • Location
    Shropshire
  1. Out of interest has anybody tried one of the WiFi extenders that plug into a spare USB port such as the ones sold by the PI Hut? They are supposed to be plug and play with Pi4's but do they work with the ZWO ASI pro? I see there is a YouTube video where at around three mins the Guy mentions a net gear extender
  2. When I was looking at a roll of roof I would have adapted a sliding gate automation kit. These kits are available for around £125. You get the motor and gearbox, racks, limit switches and infrared break beam sensors. They looked easy enough to adapt to the needs of a roll off roof. I really liked the idea of using the IR beam sensors so that if the scope was left point up the roof could be stopped before it hit the scope when closing. In the end I opted for a Dome observatory but that is what I would have used had I have gone for the roll off roof.
  3. I have a wedge with the so called Brewster angle but only use it for imaging for which it gives excellent results. As I recall when I purchased it I had to specify whether it was to be used for imaging or visual. I use it on a F11 90mm refractor.
  4. What telescope do you intend to use with the wedge?
  5. The star adventurer is quite a good mount. I have a guide scope that I first put in the dovetail and use Sharpcap's polar alignment tool to Polar align then move it to a clamp on the counterweight shaft and use PHD2 for guiding. I find that this setup gives remarkable results. To find objects I use plate solving. It shows what can be done but I admit its not a setup for beginners. My setup is based on the SA Pro kit so it came with a wedge. SA pro guided with an ED72. 60 frames using Sharpcaps live stack and save 870 seconds total time
  6. try Rapid Metals. I got a 180mm x 180mm 6mm wall 1050mm long delivered for £95 just last week.
  7. your welcome. I dispensed with the heater and just set the sensor temperature to 3 c. Although you can hear the relay clicking is does not affect the stability of the image.
  8. If you lag the camera body then tuck the sensor next to the camera body underneath the insulation. Use sharpcap to monitor the sensor temperature and adjust the on/off controller temperature till it gives you what you want. These temperature settings will be different to what sharpcap says but once set will give good results. Takes about a hour and a half of bench time to optimise the settings You can cut the sensor wire length to suit as its about half a metre long as I recall
  9. comes with a remote sensor. The relay is rated at 10 amps and comes with a set of instructions on set up options. Power up and relay closes. Set the turn off temperature and the hysteresis level i.e open at 3 c close at 5 c
  10. I use these modules a lot from Ebay 193288386461 Under a fiver Even comes in a self assembly clear case
  11. Re the temperature drop question, in a warm room at say 20c and bench testing shows a sensor temperature of 5 c means that outside in the cold air it will go down to around -8c unless some form of control is introduced.
  12. Putting some insulation round the camera body will improve the cooling and stop the external condensation. ZWO do some circular stick on heaters which will help with the window fogging. Flo list them I think ZWO Anti-dew heater strip for ASI cooled cameras
  13. The best online station which gives real time data is http://hebweather.net/meteor-echoes/ In my view its the closest to what you will see with reasonable kit
  14. detail of the element mounting. Clothes pegs make it easy to set up and transport https://www.aluminiumwarehouse.co.uk
  15. Regarding the dongle I have a couple of really cheap USB dongles that were given to me by club members. They had no success until they swapped them for the "Funcube Dongle Pro plus" SDR's . This was after I told them what I use. My first antenna was a three element YAGI made from 15mm copper water pipe, mounted horizontally and angled upwards about 25 degrees. I now use a six element Yagi. Somewhere I have a drawing of it and will post when I find it
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