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Equipment Discussions >> ATM, Optics and DIY Forum

Ian Robinson
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Reged: 01/29/09
Posts: 1498
Loc: Gateshead.NSW Nth Coast,Austra...
Re: Aluminium tube thickness recommendation for 10" ?
      10/16/09 10:15 PM Attachment (16 downloads)

Hi Bob,
thanks for that suggestion, I left a hint for him at IIS , and I see Antony has posted here while I was looking him up in the member list and posting over there.


Hi Antony,
I've seen you posting at IIS on occasion.

I've sketched up something (see attachment) , how's that look fellows ?

I guess easiest way to make reinforcing rings is to have the sheet metal company roll a tube for me that's a bit longer than I need , and to ask them to cut some rings off the end ( or if they charge too much , use the mighty Dremel and the mini cutting disk to do the deed ) and then take a bit out (enough to allow the compressed ring to be slid/ pushed into the tube0 , the compression of the ring trying to spring back will give a bit of extra reinforcement , because the spring force will be acting outwards).



Looks like I might need to buy a Demel circle cutting jig for my Dremel to make fabrication of the annular ribs easier than using my big electric jig saw.
I don't have or have access to a table band saw and that would be the ideal tool to use. I can't justify buying one at this time.

Edited by Ian Robinson (10/16/09 10:32 PM)

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Subject Posted by Posted on
* Aluminium tube thickness recommendation for 10" ? Ian Robinson 10/16/09 03:22 AM
. * Re: Aluminium tube thickness recommendation for 10" ? lukasik   10/16/09 07:52 AM
. * Re: Aluminium tube thickness recommendation for 10" ? Bird   10/16/09 07:02 PM
. * Re: Aluminium tube thickness recommendation for 10" ? Ian Robinson   10/16/09 10:15 PM

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