Model Boat Mayhem
Mess Deck: General Section => Chit-Chat => Topic started by: tigertiger on January 05, 2010, 02:52:39 pm
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Looking at the metal bar bending thread reminds me of a need of my own.
Cringle irons.
I have a plan for a tool for making cringle irons. I do not have a milling machine, so I thought I could get somebody in Shanghai to knock me off a tool. They wanted to know how many thousand I wanted.
So, in short, I only want the cringle irons. I will accept big numbers (100s) of alternative inside diameters up to 5mm. As long as the price is not silly.
Ideally non ferrous metals.
Q. Does anybody know where I can get this done, or know any suitable ready made substitute? (see attached fig).
Or are there any engineers out there taking commissions? I will be looking for a lifetime's supply (approximately 100 of each ID up to 5mm ID at a convenient number for price/length of metal tube)
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OK, although I think I may be about to be taken for a fool here, what are "crigle irons" and what are they used for?
Roger in France
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If you have a sailing yacht and you need to take a reef
in heavy weather reef cringles or iron spectacles are needed
in the boltrope of the sail unless you are posh and have
the convenience of roller reefing!
Yours Aye
Ned
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Thanks, Ned.
I thought I was about to be told a shaggy dog story about "Chris Cringle" !
Roger in France
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These things aren't really all that difficult to make. A bit of "trial and error" perhaps. Short length of thinwall brass (or aluminium) tube, ball bearings "to suit", a hammer and a flat steel plate. Just keep tapping the ball(s) into the tube and eventually it will take shape. BY.
For very small ones I have used eyelets (as in shoes) with some success.
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Anything on here like them (fittings page?)?
http://www.nylet.co.uk/ (http://www.nylet.co.uk/)
I'd go with the eyelets suggestion.
Cheers
Danny