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Recent Posts
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OMG indeed, poor Yorkshire, it doesn't bear thinking about. Any-one know where the donation website is? Carole -
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Sale pending to Philip, many thanks ☺. PM replied to.. Dave -
We have recieved several requests for Rowan upgrades now booked for Fri & Sat. Rob is going to be busy! Thank-you 🙂 We have room for another one (possibly two, depending on the day) but please contact us soon because the event is nearly upon us. Steve -
By teoria_del_big_bang · Posted
I know I am talking small flexible couplings here but I have worked in Engineering for over 40 years that use flexible couplings and some small enough to suffice for this application. The flexibility it up/down and left to right, there is no rotational flex at all. We work to under 2 micron precision for size and for angle +/- 0.01 degrees so if we use these for our absolute encoder feedback in the loop of our servos there can be no angular error. I agree some alteration to the design to account for the bigger diameter coupling would be necessary but stand by the fact they would still be an improvement. Steve
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Well despite the clouds, rain and wind a few captures of Mercury were made. Now to process them....· 0 replies
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Funny sort of night here on the east coast. Too much moonlight, too much cloud, fireworks and then rain. In between I captured a few widefield snaps of ngc7000. Unfortunately my dslr, intervalometer and staradventurer mount were rained upon when a sudden 'squall' took me by surprise and terminated my imaging session. Have dried everything and all appears well with my kit. An Intervaluometer can get the unwary astronomer into 'cold' water!· 0 replies
Night night stargazers hope your evening went better.
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Hi couple of weeks ago we talking about using a DSLR on my explorer 150.Camera is a canon 40D bit old i know,i have the attachments the Canon eos ring and the T piece. no i experimented in the garden just on a tv antenna which was a success,photo enclosed.Now i tried on the Moon this evening,between clouds and was a total failure,no way could i get it into focus,i tried 2 methods one with T piece direct into telescope eye piece and again with a barlow,both failed.Is it poss i may need a extension tube to get focus?.Telescope is non motor at the moment.Sorry to be a nuisance. Regards derek· 23 replies
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