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All About Guns What's your weapon of choice, and why? Discuss the beloved speargun here! |
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05-30-2018, 09:37 AM | #16 |
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Join Date: Jan 2007
Location: North Miami, Florida
Age: 58
Posts: 2,868
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Re: Salvimar Hero
That's probably the reason why they released the new model just after one year.
I've seen the same mistake lately with several manufacturers; they release products to the market without proper field testing, resulting in poor quality products that then must be fixed/changed. It's like a race to release new products, now matter if they work properly or not. Just to get our money... Good luck with your purchase. My friend is very happy with it. He just says that the bands are kind of long. But that's normal with a product that is mass produced. You can always cut them a bit. He also says that the gun is not the best to swing around, but with that shape/mass is something you can expect. One question about your pictures: don't you think it's normal to have some wear between two surfaces of different hardness? The shaft is 17-4 PH and the sear is 316 if I'm not wrong.
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Marco A bad day fishing is ALWAYS better than a good day at work |
05-31-2018, 03:18 AM | #17 |
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Join Date: May 2009
Posts: 3,292
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Re: Salvimar Hero
The close up pictures I put up are of the trigger sear, this has no interaction with the shaft notch and doesn't even touch the shaft. It interacts only with the roller of the shaft sear. The indentations you see are due to the front part of the shaft sear with roller getting squashed into the trigger sear. This is why the trigger pull is so difficult ... the geometry is just wrong. It is off by so much that the shaft sear arms are actually interacting with the trigger sear and by passing the roller ... and thus for the trigger to break through the roller sear arms need to power through the trigger sear under load! On my 3D computer simulation, the front of the shaft sear is overlapping into the trigger sear! This was probably done to soak up the large tolerances used to ensure that the sears and rollers will rotate freely. Most likely this overlap was done as a guesstimate. Italians tend to be very suspicious of 3D drawings and 3D simulations for some reason prefer to do 3D in their "head". Well ... I can tell you from experience that this does not work so well. It took me about an hour to recreate the drawings for this trigger and put it in a 3D simulation ... if I had the Salvimar drawings it would have taken 5 minutes. One quick look at section analysis and you immediately see problems. You wouldn't even need to fire a single shot.
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05-31-2018, 07:58 PM | #18 |
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Join Date: Jan 2007
Location: North Miami, Florida
Age: 58
Posts: 2,868
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Re: Salvimar Hero
"Italians"?
Your statement is very broad... Does Ferrari, Da Vinci, Galilei, Volta, Marconi, Michelangelo, Fermi, Pininfarina, Lamborghini, etc, brings something to your mind? It is very easy to criticize other people creations. You have become very popular in this board and lots of people takes your statements as facts. You should be a little more careful on what you write here. There's people that makes a living on spearfishing/spearfishing products and your opinions can do some damage. Don't you think? Where are you from, btw?
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Marco A bad day fishing is ALWAYS better than a good day at work |
06-01-2018, 01:08 AM | #19 |
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Join Date: May 2009
Posts: 3,292
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Re: Salvimar Hero
Lol ... I think you misunderstood that this was a friendly jab at Mario from Ermessub and 2 other italians I collaborate with sometimes with spearfishing stuff. This is a running joke between us that while italians are great at innovations and beautiful artistic creations, they tend to lose interest in the boring work of getting that design through a battery of reliability tests. The 3D in the "mind" was a common suggestion used by all of them whenever I ask them if they have put a concept in a computer simulation or through heavy testing to make sure there are no problems. I certainly don't mean that as a slight against italians or italian design ... the world would be a much less beautiful place without their input! But I can see how my post translated poorly.
As for Salvimar and hurting them in their spearfishing products. I just bought about $2000 worth of Salvimar stuff last week, so I consider myself as a supporter rather than someone trying to hurt them ... it is just that I think they dropped the ball here. They went out of their way to create a very nice product, pulling all the plugs out to get a high quality handle and using MIM for the trigger sears (I think only Sporasub did that before) ... then for some reason skipped the heavy testing phase of the production version (which many times can be very different than the design version). I have no doubt that by giving honest feedback that it will be helpful in them fixing their product. I got a couple of questions from people regarding what I am talking about and I think the clearest way is to just put up the 3D simulation illustrations. The imprint of the roller and the 2 arms holding the roller are in exactly the same location as the 3D simulation shows. You can see the tolerance spaces used, and really it is just very obvious that this needs to be modified to get it to work well. And even then, I think that you need to put this through a heavy live firing session using heavy loads and multiple shots. Illustrations are Trigger loaded at rest, then cross section, then 20 degree rotation (fire position), then close up of contact surfaces during firing. The rest position looks wrong because the sears are on top of each other ... but that is designed that way because of the tolerances added around pins to ensure proper rotation ... but this really needs a lot of trial and error to get correct as the tolerances are not always the same. With a friction trigger the sears just slip a little higher or a little lower and can soak up tolerance ... but with a roller this doesn't work well. There should be a better way to "soak up" tolerance ... but MIM is very high precision and maybe these big tolerances are just not needed. Last edited by spearq8; 06-01-2018 at 01:33 AM. |
06-01-2018, 05:23 AM | #20 | |
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Join Date: Jul 2013
Posts: 99
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Re: Salvimar Hero
Quote:
Anyone field tested this Gun yet? Looks the goods on utube vids Sent from my TRT-LX2 using Tapatalk |
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06-01-2018, 02:24 PM | #21 |
Blue Water Killer
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Re: Salvimar Hero
Al Ansari is from Koweit ....
Last edited by SpearMax; 06-02-2018 at 10:19 AM. |
06-01-2018, 07:21 PM | #22 |
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Join Date: Jul 2013
Posts: 99
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Re: Salvimar Hero
Really ztaz?
Me mates got a Salvimar wetsuit. Had it for years. Sent from my TRT-LX2 using Tapatalk |
06-01-2018, 08:51 PM | #23 |
Blue Water Killer
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Re: Salvimar Hero
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06-02-2018, 03:48 AM | #24 |
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Join Date: Jun 2015
Posts: 38
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Re: Salvimar Hero
My friend got a salvimar for a year and he is still using now.Got a salvimar pipe gun and still using it.Didn't see any problem.Contrary, all of my friends got BWKS speargun and they sold it.Just don't know why.
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06-02-2018, 05:24 AM | #25 |
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Join Date: Apr 2011
Location: Montauk & Rincon
Posts: 272
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Re: Salvimar Hero
SpearQ8, I’m a bit confused. Are the handles and triggers you bought and have been testing are they the same handle that comes with the salvimar hero?
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06-02-2018, 06:42 AM | #26 |
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Join Date: Aug 2016
Posts: 460
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Re: Salvimar Hero
Shouldn’t we put things in perspective and first have a look at the performance of guns with their original setup before we start increasing the power (potentially overpowering them) and drawing conclusions that may be biased?
My simple question is this. How is the Hero performing out of the box? Maybe the trigger is not meant to be used with such a load? Sent from my iPhone using Tapatalk |
06-02-2018, 07:20 AM | #27 | |||
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Join Date: May 2009
Posts: 3,292
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Re: Salvimar Hero
Quote:
Quote:
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06-06-2018, 03:23 PM | #28 | |
@spearingdestin
Join Date: Dec 2015
Location: Fort Walton Beach/Destin
Posts: 74
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Re: Salvimar Hero
Quote:
All and all, Salvimar combined all the winning features of other guns, rail and wood into one gun and they did it nicely. I give it two thumbs up.
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07-11-2018, 01:57 AM | #29 |
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Join Date: Jul 2013
Posts: 99
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Re: Salvimar Hero
Bump
Sent from my TRT-LX2 using Tapatalk |
08-12-2018, 11:08 AM | #30 |
Pacific Spearo
Join Date: Jul 2007
Age: 62
Posts: 3,358
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Re: Salvimar Hero
Just purchased a Hero 115. Hopefully get it in the water in a week or 2. On the surface, great looking well thought out gun.
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