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Residual twist on an ice carbon solid blank
Posted by:
Momo Zaki
(---.hsd1.il.comcast.net)
Date: December 08, 2017 10:54AM
Hello,
I am just wondering if the blank I have has a problem or it is the nature of the carbon solid blank... The (potential) problem is that once you attach a guide to the blank and give rotational twisting (like 90 deg), the blank doesn't seem to twist back to the original position. Depending on how far you twist (and how far the guide is located from the tip), but it seems that there may be 5-10 deg. of dislocation. At first, I thought I didn't attach the guide right and it became loose. Upon a closer inspection, I found that the guide is rigidly attached to the blank and doesn't move relative to the blank. The blank itself gets twisted and it just doesn't untwist to the original position as if there is some residual twist permanently left in the blank. The most of twisting does get untwisted back as a torsion spring, but some 5-10 deg of residual twist remains depending on how much initial twisting you give to the blank. It is more pronounced near the tip (where the blank is thinner) and the tip is probably the worst (meaning easiest to get twisted). If I twist the tip, the second guide doesn't follow. If I twist the second guide, tip and the second get twisted, but the third doesn't follow. So I am guessing the residual twist is a local phenomenon (not the entire blank develops the residual twist, only right where you twist). I guess the blank has a progressive taper, so the most twisting should occur at the thinnest place that is where you twist, so it does make sense... I just did a few testing to confirm the problem and no more, since I don't want to destroy the blank, but is it normal? I feel that any residual twists mean permanent fatigue in the blank, so the blank gets weaker and weaker, but I am not sure. Many people said solid carbon blanks are very tough and hard to break that now I think only for bending, but what about against twisting (torsional force)? I would appreciate any inputs or insights. Thanks! Momo Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 08, 2017 11:21AM
i never heard of this, strange stuff.lol..if you twist it back in the other direction does the guide come back to the original position..maybe the rod only works at 32 degrees and lower.lol. Re: Residual twist on an ice carbon solid blank
Posted by:
Norman Miller
(---.lightspeed.jcsnms.sbcglobal.net)
Date: December 08, 2017 11:50AM
When they say it’s a noodle blank they really mean it!
Norm Re: Residual twist on an ice carbon solid blank
Posted by:
Matthew Pitrowski
(---.lightspeed.milwwi.sbcglobal.net)
Date: December 08, 2017 12:03PM
did you sand it down ?? if not then I would say that it is a faulty blank like the resin didn't wet out the fibers completely allowing for the distortion
and if you did sand it down then you went to far lol and it got to hot in the section where the twist doesn't return to where it started The best day to be alive is always tomorrow !! Think out side the box when all else fails !!! Wi. Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 08, 2017 02:33PM
Norm, that,s funny! M atthew what you say makes a lot sense to me..even wet sanding can get too hot. Re: Residual twist on an ice carbon solid blank
Posted by:
roger wilson
(---.hsd1.mn.comcast.net)
Date: December 08, 2017 03:40PM
Momo,
Cut off the guides, scrap the blank and start over. Good luck I have built hundreds of ice rods and have never seen this issue. I suspect that you simply have a defective blank. Re: Residual twist on an ice carbon solid blank
Posted by:
Momo Zaki
(---.hsd1.il.comcast.net)
Date: December 08, 2017 07:21PM
Ben,
Yes, I could correct the guide locations. As you just said, by carefully twisting backward to about the same amount (rotation) and letting it spring back, it comes back. All, I did sand it down, but with wet sand papers and I did it very carefully (slowly). I never felt any heat developed in the blank, but that is a possibility (I admit that I am a beginner). Now maybe I should rephrase the question before throwing the blank; how sensitive are those ice rod blanks to rotational twisting? Like twisting 90 deg. is something I am never supposed to do? What about 180 deg? The reason I ask this way is that I use a baitcasting reel and have hard time finding an ice rod for a baitcasting reel with lighter power (like UL, L range). This is the motivation that I am making this rod. When I use the baitcasting reel on a spinning ice rod, the tip tends to get rotated as much as 180 deg when a fish is on (doesn't need to be a big fish! UL, L ice rods get rotated pretty easily). I really didn't pay attention in the last season, so I am not sure if the spinning rod I have did the same thing or not (I can try), but I would like to know if such a usage is acceptable or not. I even do have a spare ice rod blank that I can twist and see, but I need to know the limit before doing this test! Thanks! Momo Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 08, 2017 08:19PM
Momo, maybe a simple spiral ice-rod..i never made one but it sounds like a simple solution.lol. i bet someone on this site has.. Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 08, 2017 08:26PM
Momo, just put 3 or 4 guides on the bottom of the rod, you don,t need a bumper guide and you have no more torque problems. Re: Residual twist on an ice carbon solid blank
Posted by:
Momo Zaki
(---.hsd1.il.comcast.net)
Date: December 10, 2017 12:38AM
Dear Ben,
I am making a spiral ice rod for this very reason! But now I need to resolve this blank twisting phenomenon before moving forward... All, Well, I tried twisting the Fenwick 28 in ML solid carbon ice rod. It is still in a good shape and I can't imagine that the blank has been compromised by heat etc. I still don't know if twisting the tip guide is acceptable or not, but I unintentionally did that last year every time I hooked a fish! So if I do one more time now, what is the difference. So I just tried twisting the rod again. You know what, the same thing happened that the top guide did permanently (well, I don't know how permanent, bust at least for a few minutes) dislocate by 5-10 deg. Anybody who said never seen or heard this before, if you don't mind, would you please try twisting the top guide 90 or if OK,180 deg and see what happens? Or maybe because of this, should I conclude twisting 90 deg is too much, because it slightly but permanently deform the blank (beyond its elastic limit)? Thanks for your inputs. Momo Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 10, 2017 09:45AM
hi Momo..do you have any carbon ice rod blanks that have not yet been sanded, if so twist it to see if it does the same thing..if it does distort, maybe that,s the nature of the beast.lol. Re: Residual twist on an ice carbon solid blank
Posted by:
ben belote
(---.zoominternet.net)
Date: December 10, 2017 09:45AM
hi Momo..do you have any carbon ice rod blanks that have not yet been sanded, if so twist it to see if it does the same thing..if it does distort, maybe that,s the nature of the beast.lol. Sorry, only registered users may post in this forum.
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