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All About Guns What's your weapon of choice, and why? Discuss the beloved speargun here! |
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10-07-2019, 06:36 PM | #31 | |
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Re: linking rubbers together for more speed?
Quote:
Andersp90, please video/post your experiment. I'd recommend safety glasses.
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“If the natural tendencies of mankind are so bad that it is not safe to permit people to be free, how is it that the tendencies of these organizers are always good? Do not the legislators and their appointed agents also belong to the human race? Or do they believe that they themselves are made of a finer clay than the rest of mankind?” ― Frederic Bastiat, The Law |
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10-07-2019, 06:42 PM | #32 |
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Re: linking rubbers together for more speed?
You could try some sort of ultra short wishbone between the two band ends or even a double sided bead or something with constrictor knots. I think I see what you're getting at but some of the comments about usability are worth considering. There is a max stretch point on any rubber you use where it becomes counterproductive to stretch the band further, and by linking two bands end-to-end you're trying to get more power from a 'single' co-joined band, but I don't think you're gaining any stretch. Its ether 100% or 50% + 50% from how I see it.
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10-07-2019, 06:50 PM | #33 | |
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Re: linking rubbers together for more speed?
Quote:
I plan on using piercings to join the ends. 3 pr final rubber band. Hunt is already making something similar, so mabye he will make me some: http://www.huntechnology.it/en/ogivepiercing.aspx |
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10-07-2019, 06:54 PM | #34 | |
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Re: linking rubbers together for more speed?
Quote:
Hopefully, that will translate into a faster spear. Time will tell. Last edited by Andersp90; 10-07-2019 at 07:10 PM. |
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10-07-2019, 08:27 PM | #35 |
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Re: linking rubbers together for more speed?
This entire discussion is insane!
Just take a magic marker and draw a line around the center of the band where the intended cut line is, now pretend you cut it and glued it back together, there you go, it is magically spliced together on the cut line, how much difference in power are you getting now! And That is better than your idea of using "piercings"...you know of cource when you use those and tie the bands you have lost usable material that would have stretched.. Like I said, this is insane. |
10-07-2019, 08:35 PM | #36 |
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Re: linking rubbers together for more speed?
I've done this experiment already. I cut my speargun bands into an infinite number of segments (of infinitesimal length) and then glued them back together in series. I didn't get supersonic speeds.
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10-07-2019, 08:37 PM | #37 |
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Re: linking rubbers together for more speed?
I don't think using body jewelry to join two rubbers is safe.
When are you going to do your experiment? |
10-07-2019, 08:45 PM | #38 | |
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Re: linking rubbers together for more speed?
Quote:
Andersp90, don't think we're giving you a hard time out of meanness. I'm pretty sure everyone enjoys you posting the question. It's at least thought provoking and entertaining. Be cautious of what body jewelry you intend to use. I've seen too many instances of use on people whereby the flesh doesn't snap back...ears for example.
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“If the natural tendencies of mankind are so bad that it is not safe to permit people to be free, how is it that the tendencies of these organizers are always good? Do not the legislators and their appointed agents also belong to the human race? Or do they believe that they themselves are made of a finer clay than the rest of mankind?” ― Frederic Bastiat, The Law Last edited by Marcus; 10-07-2019 at 08:57 PM. |
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10-07-2019, 09:10 PM | #39 |
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Re: linking rubbers together for more speed?
A picture is worth a thousand words. If we shorten the bands we only get half the draw, so the spear would only be propelled on the gun body for half the distance acheived before, so we don't gain anything.
Last edited by popgun pete; 10-07-2019 at 09:59 PM. Reason: added another graph at lower right |
10-07-2019, 09:59 PM | #40 |
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Re: linking rubbers together for more speed?
This is why I don't trust my doctor to be my car mechanic.
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10-08-2019, 12:43 AM | #41 | ||
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Re: linking rubbers together for more speed?
Quote:
Here is the link again: http://www.huntechnology.it/en/ogivepiercing.aspx Ofc you wouldent. Just like you dont have supersonic muscles. But if muscle A is 10 times longer than muscle B, A will be 10 times faster. Quote:
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10-08-2019, 01:20 AM | #42 |
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Re: linking rubbers together for more speed?
Energy stored in the bands gets turned into kinetic energy of the spear and to a lesser extent the gun because the diver is holding it. To increase the velocity or acceleration of the spear the extra energy would have to come from somewhere and chopping the bands up into segments does not do that. To think otherwise would be like believing in a perpetual motion machine.
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10-08-2019, 01:22 AM | #43 | |
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Re: linking rubbers together for more speed?
Quote:
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10-08-2019, 01:45 AM | #44 | |
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Re: linking rubbers together for more speed?
Quote:
Power is the rate of doing work, and energy is the same as work. Using the energy in a shorter burst does not buy any more velocity as you only have the same amount of energy in either case. |
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10-08-2019, 01:59 AM | #45 | |
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Re: linking rubbers together for more speed?
Quote:
Last edited by Andersp90; 10-08-2019 at 02:10 AM. |
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