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In the famous words of Bilbao Baggins, I'm going on an adventure!
Almost 2 years ago i got rid of my old shed with the intention of replacing it with a R O R shed,
Well a lot has happened since then, but no R O R shed 😞 No way i could build one, my DIY skills are rubbish.
My mount and scope plus other bits have sat in the garage ever since, mainly because it's such a pain to drag everything out and set up only to be thwarted by cloud/rain, so i decided that they would stay in the garage until the arrival of R O R shed,
so fast forward 2 years.....
Well! while browsing some astro sites i happened across an advertisement which said something like wooden observatory for sale, 7ft x 7.5ft, buyer to dismantle and remove, so me being in need of one had a look at the pictures he posted, that will do nicely i thought, so i contacted the seller and asked for more info and pictures,
It's not a roof that rolls off onto supports, it turns out 1/2 of the roof rolls over the other 1/2 with a front section of the shed that drops down,
I was happy with what i received from the seller, he couldn't have been more helpful and seems a really nice bloke,
Right then, where are you located mate i asked,
Bovey Tracey he replied,
to be honest, i had never heard of it, so time to consult google maps..
Well it turns out it's only about 270 miles one way from my house in Lancashire 😞 (so round trip of approx 540 miles)
Time to make a decision, do the positives outweigh the negatives, is it going to be a cost effective solution in getting my R O R shed ?
after doing some calculations and a little more contact with the seller, the answer to the 2 questions above is YES 😁
I have hired a box van for this coming Saturday,shangied my brother in law to accompany me and..
I'm going on an adventure to Bovey Tracy to dismantle it and give it a new home in sunny Lancashire,
even though my DIY skills are rubbish i feel i have to give this a go,
All in with the cost of The Obsey (as it is now known until i can think of something better) and with the hire van/fuel and brother in laws dinner
it's going to set me back approximately £570 and a day out, I'm well chuffed with that, the cheapest quote i had to have one built was £1000
I have a couple of pictures of the obsey in it's current location if anyone would like to see them,
Sorry to waffle on so long,
Thanks for reading
By lux eterna
Pretty often I read about people having issues that may be related to backlash in DEC or RA, and I would like to offer a very simple and effective cure for it. I have done it on my HEQ5 Pro but surely it can be modified for any mount that needs it. With this simple fix, I can live with a rather big backlash (with no risk for binding in freezing temperatures).
For DEC, I always balance carefully (neither front nor back heavy). Then I stretch the coil spring until it has a small impact on the DEC balance (and later in the evening I eventually forget about loosening it when I slew away... so you will need some replacement springs. It took maybe 10+ of such mistakes until I stopped forgetting...). The bracket is only attached with double sided tape (on three sides), but the black maintenance plug (not original) also supports it.
RA is usually OK with just the standard method "East Heavy", but occationally the scope is poing due west or east (counterweights pointing north) and then there is no "East Heavy" impact. That is when I use this:
It´s a little hard to see in the pictures, but I get a momentum in RA (in reverse to tracking direction) when I tighten the string. Now, I happen to have the Rowan belt mod which includes a thick nylon spacer inside the gear cover, and that is a good thing here because it adds to the momentum. I usually hook it up an hour or two before the CW bar points due north. Then when it has well past north I will stop the camera, remove the backlash killer and re-adjust "East Heavy".
EDIT: (Sorry, English is my second language...) Should be a torque, not momentum.
By Craig Shaw
I have searched SGL for a tutorial incase this has been covered so forgive me if it has. I've also searched the web in general and couldn't find a full tutorial to do this, so i have collated a couple of tutorials that make it work.
I have managed to get SkySafari to work with a £32 ish Raspberry Pi3 and the cable that came with my scope with a usb to serial converter - the same things you need for connecting to a PC. It allows me to control the scope using the SkySafari Plus app on my tablet or phone AND it creates a wifi hotspot on the Raspberry Pi so it doesnt have to be on a network to work. This also turns the pi into a natty mini wireless router which is handy if you travel since it gives you a private wireless network when plugged into hotel wired internet 😁
I AM NOT RESPONSIBLE FOR ANY DAMAGE THAT MAY OCCUR TO YOUR HARDWARE BY FOLLOWING THIS POST OR ANYTHING LINKED TO THIS POST
It takes about 30 mins to do the tinkering, make sure you use the latest LITE version of raspbian.
Raspberry Pi 3 Portable power to it (preferably) Raspbian Lite Image file Appropriate cables to connect your Telescope to it via USB Computer connected to network Network cable to connect Raspberry Pi for initial setup A GoTo / Push To etc telescope mount compatible with SkySafari Plus / Pro A nice case for the Raspberry Pi
You need to know a little about accessing the Raspberry Pi by SSH.
For windows, use Win32 Disk Imager to burn the latest Raspbian LITE image to a micro sd card. Open the card on the pc (called boot) and make a blank file on it called 'ssh' - no file extension. This enables ssh access automatically.
Stick it in your Pi and plug it into your network router and a power source.
Find its ip address - i log into my router by typing its ip address into a web browser and look at connected devices, there are other methods though.
I use a program called Putty to ssh.
There are many tutorials on how to do the above and it isnt as hard as it first seems.
I used 2 tutorials to do this and i will link to them directly as the original authors explain it better than me. The first one is muuuch longer than the second which is just 3 steps so bare with it.
When the first tutorial suggests a reboot after the upgrade, DO IT! Then ssh back into the Pi and continue.
Don't bother rebooting after tutorial 1 either.
Tutorial 1 - Turn Raspberry Pi into a portable wifi hotspot
See 'CONNECTING' after doing step 2 in the next tutorial to actually connect to the scope as what you have just done changes it a bit.
Tutorial 2 - Make it talk to SkySafari App and the 'Scope
You can now unplug the pi from your router. Plug your USB to serial adapter into the pi, your telescope cable into that and connect it to your scope as you would do with a pc (mine is into the AutoStar hand box) and use it as a stand alone adapter just like the £200 SkyFi adapter!
To connect SkySafari to the pi you simply connect your tablet or phone to the pi's network like you would any other wifi network, i called mine Scope, connect using the security key / password you made up in tutorial 1. Open SkySafari and follow step 3 in the second tutorial but with IP address 192.168.0.10 - the port is still 4000 (unless you changed it)
If you are at home and your cable is long enough to reach your router you can plug the pi into that and use your home internet too - which you cant do with the SkyFi adapter!
I am going to shorten my serial cable to make it a neater package, i can always solder new plus to make an extension if i ever need one.
I am also working on finding out how to make it share usb internet so a 4g dongle can be plugged into it when out and about since when you connect to the pi's wifi in the field you will not have internet on the device connected to it.
Also the Pi could possibly be used for imaging or tracking, someone on here will probably know more on this.
Appreciate your time to read that topic.
Have you ever tried 3D printing tech to create/design any of your astro components that may substitute expensive ones?. I'm curious to know your thoughts about it.
So my birthday just past so money to splash on astro stuff , i will have my 1000D modded by juan at cheapastrophotography and also have ordered an autofocuser from deepsky dad https://deepskydad.com/autofocuser i know they can be done DIY but this is a neat package and costs about the same as a SW autofocuser and a hitechastro focusmaster and i`m no electronic wizard and pavel seems to have a good product and works with ascom and confirmed it works with APT i will update in a few weeks time when hopefully i will have received and tried out .