Orpington Astronomical Society

Astronomy => Technical => Topic started by: Fay on Oct 16, 2009, 12:23:41

Title: Canon Screw
Post by: Fay on Oct 16, 2009, 12:23:41
I bought a camera fixing screw today, to fix Canon onto the Gemini bar, but it is far too short.

Does anyone know where I can get a suitable long one.

Thanks
Title: Re: Canon Screw
Post by: Mike on Oct 16, 2009, 12:37:55
B&Q or local hardware store.

Take the screw along and find something the same diameter with a similar looking thread. Should work fine.
Title: Re: Canon Screw
Post by: mickw on Oct 18, 2009, 16:48:13
Fay if you've already got the bolt and not fitted it - just try the fit into the cameara without it being on the bar to see if it's an easy fit.
I suspect it will be Whitworth or other "old" thread - Which I have some of  ;)

If you haven't got it let me know what length you want.
Title: Re: Canon Screw
Post by: Fay on Oct 18, 2009, 17:19:41
Found a bolt Mick, but has a round proud end on, which will not allow the bar to sit flat in the dovetail. I am thinking i would have to have an end on as the hole in the dovetail is not for a screw & so nothing to hold it in. If you know what I mean
Title: Re: Canon Screw
Post by: mickw on Oct 18, 2009, 17:44:32
I think you're saying that there is not a thread in the hole in the Gemini bar that you are trying to us, so you are using a bolt with a head on it that gets in the way of the dovetail.

Is the hole in the Gemini the same size all the way through, or is it wider on one side - could you use the bolt you've got if then head was smaller
Title: Re: Canon Screw
Post by: Fay on Oct 18, 2009, 21:01:18
Yes, that was what I was trying to say, Mick. hole same size all through, yes could use bolt if no head on or a recess was made around hole
Title: Re: Canon Screw
Post by: PhilB on Oct 19, 2009, 23:16:33
Hi Fay,

If you're still stuck for a solution, bring the bar and bolt along to the meeting on Thursday. I may be able to make you something suitable.

Cheers

Phil
Title: Re: Canon Screw
Post by: Fay on Oct 20, 2009, 09:24:26
That is kind of you Paul, but Mick has figured something out. See you tuesday
Title: Re: Canon Screw
Post by: Rocket Pooch on Oct 20, 2009, 13:46:01
Could allways glue it on.
Title: Re: Canon Screw
Post by: mickw on Oct 20, 2009, 16:21:21
QuoteSee you tuesday
Fay, today is Tuesday - get a grip woman  :roll:

Quoteglue it on
Oh Chris - you spoiled the surprise  :(

Suppose I'll have to do it properly now  :roll:
Title: Re: Canon Screw
Post by: Fay on Oct 20, 2009, 16:48:59
i know today is tuesday............ :o