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| Fraying Dyneema http://southernfreedivers.org.au/forums/viewtopic.php?f=3&t=3126 |
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| Author: | Kallum [ 05 Apr 2011, 17:20 ] |
| Post subject: | Fraying Dyneema |
Hey guys, i bought my first spear gun on the weekend, a picasso asegai 100cm. I loaded it and once i unloaded it i noticed the notch in the spear is quite sharp and made the dyneeema fray a little bit. Is this OK? or will it break quite quick? Thanks |
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| Author: | ozdog [ 05 Apr 2011, 17:45 ] |
| Post subject: | Re: Fraying Dyneema |
check your pm |
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| Author: | dario168 [ 05 Apr 2011, 21:44 ] |
| Post subject: | Re: Fraying Dyneema |
oz do you mind posting here, i have the same issue |
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| Author: | camospearo [ 05 Apr 2011, 21:48 ] |
| Post subject: | Re: Fraying Dyneema |
ozdog wrote: check your pm can i know aswell im gettin the same thing |
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| Author: | Kallum [ 05 Apr 2011, 21:54 ] |
| Post subject: | Re: Fraying Dyneema |
Hey Camo, (edit) * and dario This is what oz said. "most shafts are ground out and polished. they should not frey the dynema after one dive. lift the rubbers and "place" them into the notches when loading as not to rub the dynema on the shaft." |
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| Author: | camospearo [ 05 Apr 2011, 22:06 ] |
| Post subject: | Re: Fraying Dyneema |
Kallum wrote: Hey Camo, (edit) * and dario This is what oz said. "most shafts are ground out and polished. they should not frey the dynema after one dive. lift the rubbers and "place" them into the notches when loading as not to rub the dynema on the shaft." cheers kal |
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| Author: | superstevo [ 05 Apr 2011, 22:12 ] |
| Post subject: | Re: Fraying Dyneema |
Also make shore you do not rub the dyneema with your shooting line crimp, as was the problem with me. Stephen |
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| Author: | chrisAUS [ 05 Apr 2011, 22:19 ] |
| Post subject: | Re: Fraying Dyneema |
A lot of shafts have sharp edged notches, especially euro shafts designed for metal wishbones. You need to file them down. Here is a great tutorial on how to do it: http://www.ronsseacorner.co.nz/how_to_s ... _notch.htm Cheers, Chris. |
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| Author: | Kallum [ 05 Apr 2011, 22:42 ] |
| Post subject: | Re: Fraying Dyneema |
Awesome, thanks chris. Looks good. Might give it a whirl if it continues to happen |
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| Author: | chrisAUS [ 05 Apr 2011, 22:44 ] |
| Post subject: | Re: Fraying Dyneema |
Kallum wrote: Awesome, thanks chris. Looks good. Might give it a whirl if it continues to happen It takes about 5 minutes. You can get the files from bunnings for about $5. I do it on all my new shafts, there is nothing worse than having your dyneema break on a trip. |
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| Author: | surfcoastspearo [ 06 Apr 2011, 08:09 ] |
| Post subject: | Re: Fraying Dyneema |
I use a dremmel with the finest grinding bit I have, then buff the crap out of it with the polishing bit. Works well.. |
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| Author: | Kallum [ 06 Apr 2011, 20:06 ] |
| Post subject: | Re: Fraying Dyneema |
All fixed, well at least it looks fine until i test it out on the weekend. I pretty much followed the link Chris put up, but i added a bit of sandpaper between the file and the polish steps. Turned out fine (would upload pictures but there pretty crappy from the iphone) Its not as deep as the after picture in the link, its just a smoothed off version of the original. Also just replaced the frayed dyneema and ran a quick flame over it so smooth it over. Will report how it goes on the weekend Thanks everyone for the help |
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