EV4
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Post by EV4 on Apr 2, 2010 12:00:58 GMT
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midge
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Post by midge on Apr 2, 2010 21:06:55 GMT
Thanks David an intersting video. When's part 2 due?
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EV4
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Post by EV4 on Apr 3, 2010 14:10:41 GMT
It's being shot as we work.
Part 2 will take a bit of time, it is a lot more complicated to film. There are so many building processes to be shown after the blank is built to get to a completed rod.
The recent heavy snow left us without any electricity for two days, so we are a bit behind on things due to that.
David.
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Post by kingfisher on Apr 4, 2010 17:13:13 GMT
Excellent wee video David of the work that goes into a rod.
But could I ask you to elaborate on the terminology that prevails in the various manufacturers blurb in the brochure sales pitch.
Like 42 and 54 ton (strength) or high in modular construction etc. I'm sure I speak for a lot of people who would like to know exactly what these means and any other buzz words to look out for.
What is the best carbon description to look out for?
Kenny
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EV4
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Post by EV4 on Apr 6, 2010 13:35:58 GMT
Hi Kenny, That's not so easy a question to answer. It's a complicated subject. Carbon fibre properties depend on the structure of the carbon used. Typically they are defined as standard, intermediate and high modulus. There are actually only about four or five grades of carbon fibre used by ALL of the worlds rod manufacturers. They may have their own generic name for it but it will be made up from one of these grades or a mixture of several of the grades. The figures in the chart below give you the true story of how individual Carbon Fibers perform. How it stretches and when stretched how far it stretches before it breaks. The XX TON figures given, really don't mean anything other than tell the end manufacturer using the carbon fibre (not the rod buyer!) the type of fibers present, but not the volume used of that particular fibre. It is just a bit of technical spin to make it sound.....technical. In reality it tells the consumer very little about the rod they are buying. There is no "best" carbon fibre. In rod making it is all down to the interpretation by the designer of the volume/grade to be used in conjuction with the taper design. Any grade of high or low modulus carbon can make a great rod, used badly - even the very expensive highest modulus carbon will make a poorly performing rod. High modulus carbon as you will see in this chart (sorry I could not get the chart to paste. Hence the link) www.davidnorwich.com/CARBONFIBRE.htm has a lower stretch rate (which is why it is stiffer when used in a rod) it also breaks more easily when pushed to its elastic limit. As you see by the figueres, Low or Standard Modulus covers quite a wide range of carbon fibre grades. The same applies to Intermediate and High modulus Carbon Fibres. There is no definitive figure for any carbon fibre type. I'm sorry, probably I'm not making things much clearer for the rod buyer, but I hope the chart above helps you understand at least, what the term Modulus of Elasticity (Young's Modulus) and the term Low to High Modulus Carbon Fibre actually mean. As you see by the chart, the definition of what low and high modulus carbon actually is, is variable. Regards, David. |
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Post by builnacraig on Apr 6, 2010 17:53:42 GMT
First class looking forward to part 2.
Builnacraig
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EV4
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Post by EV4 on Aug 21, 2010 8:36:39 GMT
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Post by builnacraig on Aug 21, 2010 19:47:02 GMT
David, Would I be right in presuming that a matt finish blank is not coated in any way?
That is some bend your assistant is putting in that blank section? He must have a lot of confidence in the worksmanship.
Brian
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EV4
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Posts: 53
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Post by EV4 on Aug 22, 2010 16:15:19 GMT
David, Would I be right in presuming that a matt finish blank is not coated in any way? That is some bend your assistant is putting in that blank section? He must have a lot of confidence in the worksmanship. Brian Hi Brian, No not always. Some manufacturers use a clear matt or satin finish over the carbon. Others sand the blank then polish it, leaving a slightly matt finish. Bit dangerous though, as there is absolutely no impact protection. Do you mean this bend?  That's my response to - "Sintrix" what's all the hype about? www.flyforums.co.uk/fish-fly-news/69477-hardy-announce-fishing-rod-revolution-take-2-sintrix.htmlDavid. |
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