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All About Guns What's your weapon of choice, and why? Discuss the beloved speargun here! |
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02-11-2021, 02:45 AM | #16 |
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Join Date: Jun 2004
Location: Durban South Africa
Posts: 263
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Re: Shafts...Can't find the ones I like anymore.
Hi guys,
we make the wire fin option because we found the full weld needed on the solid fin caused the spear to warp from the heat. It also becomes soft in this zone and can bend/crack easily. The wire fin is set through the steel and spot welded for a fraction of a second at a high amp to cause the least possible heat transfer. We will experiment at some stage with a small fin but we are so back logged with standard spear orders that it's going to be a while yet.
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02-11-2021, 11:17 AM | #17 |
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Join Date: Apr 2004
Location: Palm Beach Florida USA
Posts: 1,722
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Re: Shafts...Can't find the ones I like anymore.
Hi Rob,
Glad to hear the Dive Factory is going strong. Something I have always wanted to ask (but never had the audacity) is why are there are not reports of the KJ shafts bending and breaking etc at the weld? Maybe there are incidents, but I do not appear to have heard of them? Regards to Jeremy and the rest of the staff. Mike. |
02-11-2021, 11:31 AM | #18 | |
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Join Date: Apr 2004
Location: Palm Beach Florida USA
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Re: Shafts...Can't find the ones I like anymore.
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All depends on how good you are at drilling spring steel and grinding a tri-cut. You ever tried that? The grinding of the new tip is relatively easy but the drilling is another issue. I think there are threads related to drilling, but not sure. Re-fitting of the barb is not too difficult, but does need some finesse. Regards, Mike. |
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02-11-2021, 12:34 PM | #19 | |
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Location: Big Island
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Re: Shafts...Can't find the ones I like anymore.
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02-11-2021, 12:41 PM | #20 | ||
The Trigger Whisperer
Join Date: Nov 2007
Location: Atlantic Highlands NJ
Posts: 1,290
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Re: Shafts...Can't find the ones I like anymore.
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I don't doubt Mr. Allen at all he's obviously done his homework on these things but I wonder why I haven't heard of tab issues either. Maybe we haven't heard of this because just not enough people have been using them in the spring steel configuration for the more bruiser types of fish. I prefer the spring steel because of bending while shooting among rocks rather than the fish actually bending them so I'm not putting any real load on the tabs. Plus, I consider myself lucky if I shoot a gear testing fish or two a year so I'm probably a terrible test subject. That said I haven't seen any signs of issues in the tab area. I have used the shafts to shoot a couple YF tuna ~60lbs range here as well as a few other gear testing fish when I'm lucky enough to travel but that's not on the regular. Be nice to know how bad an issue it is and if the KJ ones somehow solved the issue. Assuming I'm able to get my hands on them again I would hate to lose a good fish because of a tab failing. I don't get a ton of chances on fish that could do that so I really have to make my chances count.
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02-11-2021, 02:37 PM | #21 |
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Join Date: Mar 2006
Posts: 4,245
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Re: Shafts...Can't find the ones I like anymore.
Many use spring stainless precipitation hardened steel 17-4 PH which has been available as tabbed shafts for decades. The material was originally developed for prop shafts on Navy vessels. All my tabbed shafts are made from it.
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02-11-2021, 04:04 PM | #22 |
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Join Date: Jan 2007
Location: North Miami, Florida
Age: 58
Posts: 2,868
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Re: Shafts...Can't find the ones I like anymore.
Drilling a South African shat is "Mission Impossible". Or almost
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Marco A bad day fishing is ALWAYS better than a good day at work |
02-11-2021, 05:53 PM | #23 | ||
The Trigger Whisperer
Join Date: Nov 2007
Location: Atlantic Highlands NJ
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Re: Shafts...Can't find the ones I like anymore.
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02-16-2021, 05:47 AM | #24 | |
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Join Date: Nov 2016
Location: Bilbao (Spain)
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Re: Shafts...Can't find the ones I like anymore.
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Mikel |
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