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Snake Hooks |
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Uncle Herp
Member Joined: 05 Apr 2007 Location: Malaysia Status: Offline Points: 7 |
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Uncle Herp
Malaysia Herpetology Club Malaysia Fauna. com uncleherp@malaysiafauna.com |
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administrator
Admin Group Joined: 01 Jan 2007 Status: Offline Points: 10 |
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Araldite is a form of epoxy. Simple epoxy compound fixture between two materials will always be weak in shear. Incorporate glass cloth or glass powder in the fixture, and fillet open joints. You will then increase shear strength and avoid stress concentration and over come the problem of weakness in relation to twisting. It will make the joint less 'brittle'. I do use snake hooks and am also an aerospace engineer by training |
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administrator
Admin Group Joined: 01 Jan 2007 Status: Offline Points: 10 |
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PS also 'key' the steel heavily, if it is smooth you will still have the problem of the steel breaking away from the epoxy. |
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administrator
Admin Group Joined: 01 Jan 2007 Status: Offline Points: 10 |
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Just another idea, to save money if you have broken carbon fibre rods available, you could grind them down to give you carbon fibre reinforcement of the epoxy joint instead of glass. Remember though that carbon fibres are potentially lethal in this state, so wear gloves and a face mask.
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Wolfgang Wuster
Senior Member Joined: 23 Apr 2003 Location: United Kingdom Status: Offline Points: 374 |
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If you need an adder hook in a hurry, a simple wire coat hanger is pretty good - just pull the long edge so as to straighten it, twist it once or twice, straighten the hook end into an L-shape, and voila, you have a snake hook.
Moreover, because of the bendiness of the whole thing, it's actually a pretty good tool for gently pinning the forebody of the adder with the handle end while grabbing the tail. And when the hook end breaks off (as it tends to), you can then use the handle as a handy replacement aerial for your car Cheers, Wolfgang |
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Wolfgang Wüster
School of Biological Sciences, University of Wales, Bangor http://pages.bangor.ac.uk/~bss166/ |
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Jimpklop
Senior Member Joined: 23 May 2006 Location: United Kingdom Status: Offline Points: 208 |
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Hello
Any ideas for tubing? Does any one use them? James |
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Im Craving Adder's(www.jimpklop.moonfruit.com)
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martin g
Member Joined: 04 Jul 2006 Location: United Kingdom Status: Offline Points: 43 |
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If araldite doesnt work, there is a product on the market called 'milliput' which is fibrerous and may do the trick. Remember I havent made one of these, its just an idea.
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Alan Hyde
Senior Member Joined: 17 Apr 2003 Location: United Kingdom Status: Offline Points: 1437 |
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If you use a golf club or hiking stick that i mentioned no adhesives are needed.
Just cut off the club head and many of the already rubber coated hooks sold at B&Q will just self tap and screw in the end. Edited by Alan Hyde |
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O-> O+>
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administrator
Admin Group Joined: 01 Jan 2007 Status: Offline Points: 10 |
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Araldite would work, it just needs some glass or carbon fibres in it to resist failure to twisting as would any epoxy. Snake hooks can put a suprising torque through the joint and this is why they fail at this point unless using a reinforced compound. Milliput is a filler (epoxy putty), not good for bonding but quite good for filling cracks on model aeroplanes, not that I would be found doing such things of course, we leave all such activities to Iowarth. I used to make resin furniture for vivariums, so have experimented a lot with epoxy and reinforcement. It is amazing the difference in bond strength between a straight epoxy joint and a epoxy/glass joint. |
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administrator
Admin Group Joined: 01 Jan 2007 Status: Offline Points: 10 |
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LOL Tony, I'll own up to using a bent coathanger for a long time too. Did you find that yours would get 'lost' in the field then turn up again seasons later? Mine used to! I only really started to buy hooks when I set up M&G Ecology, we wanted to 'look' a bit more professional
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