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Where to get latex foam

This is sort of a follow up of my past question (https://www.instructables.com/answers/Good-foam-to-make-swords-out-of-nerf-sword-style/). I think I know what kind of foam I need: latex foam. Now I need to know where to get it, though. Anyone know? Home depot? Michaels? Amazon? Some specialty store online?

Question by Sadi789  


Good foam to make swords out of, nerf sword style.

I make recreational weapons as a hobby, and as a (sort of) job. I like to sword fight with my friends (especially percy jackson capture the flag style. Yes, I'm that geeky), and my theater company also needs swords for our acting. I had two decent swords already made, with custom, homemade cardboard frames covering and these awesome plastic dowel things up the middle to give it strength (though the dowel has just the right amount of flexibility as to make the swords realistically bendy). It was a great design until the show came around, and I spent each morning before going onstage fixing swords. Now, I will make this very clear: making swords is fun; but rushing to fix them before going onstage misses my idea of a good time by a mile. And don't get me started on fixing them backstage. So understandably, I modified my idea. I have it all planned out, very simple: one of those godsend plastic dowels (I think they're really wire holders or something, but the package wasn't clear) stuck up the middle of a piece of foam carved to look like the blade of a sword. The only thing I need now is to figure out what density, and what type of foam to use, and then where to get it. People need to be able to hit each other with the swords fairly hard and still not get hurt, but the swords need to stay intact too, and they need to keep their shape. It's acting, so I can't just use boffer swords. Long story short, I'm looking to make a nerf-sword-like sword, but I need to know what kind of foam they use to make nerf swords. I'm looking, preferably, for a type of foam that comes in a block, or at least board form, so that it's easier to carve. Any ideas, fellow instructablers?

Question by Sadi789    |  last reply


My random bullpup model

So Dr. Richy posted his CAR which drew a little inspiration from this weapon that I posted on Red's wall in hopes he just might be able to turn it into a firing weapon. However, as I suspected, that's just not an easy task and I didn't expect it to happen. So I'm gonna just throw this out there and show anyone that didn't see it. It's made to be convincing, it could probably be turned into a real firearm. It's a bullpup designed to take 5.56 NATO rounds. I designed it to be somewhat ergonomic and compact. It has the front grip from...I don't even know how long that I used on my UMP. It's pretty simple, reasonably comfortable, and lets you quickly attach any front grip or bipod you can come up with. The muzzle was made from a new concept for a rounded barrel that could be used as a real K'nex barrel. This can also take a very cruddy and simple silencer attachment (which is actually just my Master Sword handle that I never wanted to disassemble). Then I added a basic rail on top that allows it to take airsoft or real rail accessories. It's not perfect, but you can get the accessories to grip into the grooves. I added a fake charging handle that is located in a decent, but not optimal position. This flows into a cheek rest of sorts that's rather close to the back of the gun so it can accommodate the charging handle pin. Your head is kinda cramped against your shoulder, but your face itself is comfortable aiming. And the front sight is detachable if you were to add a rail sight. I'm thinking I'll probably make a new one tonight for fun. It'll be shorter to be similar in size to a PDR. However, I might (not a definite) give it exchangeable fake barrels based on this one that allows it to lock in with a single pin. Secondly, I'm going to change the front to include an integrated folding forehandle that will also be comfortable to hold folded. Or so I hope. I'm also going to move the charging handle forward and make the roof one and the same with the rail to slim it down ever so slightly. This will also move the cheek rest forward to a more accurate position like on Dr. Richy's. Finally, I hope to add some nifty features but I'm not sure at all on these. One would be a bolt lock which probably wouldn't be too hard. It'd basically be like the charging handle is a firing pin and the bolt release would be a trigger, just mounted differently on the gun. And then the harder one would be to make a magazine release near the handle like on a PDR instead of the current one I use that makes you have to "strip" the magazine. On a real gun, this would be a great feature for making reloads a lot faster.

Topic by TheDunkis    |  last reply


2008 IgNobel Prizes announced!

The IgNobel Prizes are awarded annually for research which "cannot, or should not, be reproduced"; achievements that "first make people laugh, and then make them think". The prizes are meant in good humour, and many winner pay their own way to attend the ceremonies. Past winners have been known to return to ceremonies in later years to show off their achievements to a receptive audience (this year it was a sword-swallowing doctor).The Japanese team that showed slime moulds can solve mazes sang their acceptance speech.The Winners:NUTRITION PRIZE.Massimiliano Zampini of the University of Trento, Italy and Charles Spence of Oxford University, UK, for electronically modifying the sound of a potato chip to make the person chewing the chip believe it to be crisper and fresher than it really is. They also showed that playing the sound of bacon frying can make ice-cream taste bacony.PEACE PRIZE.The Swiss Federal Ethics Committee on Non-Human Biotechnology (ECNH) and the citizens of Switzerland for adopting the legal principle that plants have dignity.ARCHAEOLOGY PRIZE.Astolfo G. Mello Araujo and Jose Carlos Marcelino of Universidade de Sao Paulo, Brazil, for measuring how the course of history, or at least the contents of an archaeological dig site, can be scrambled by the actions of a live armadillo.BIOLOGY PRIZE.Marie-Christine Cadiergues, Christel Joubert, and Michel Franc of Ecole Nationale Veterinaire de Toulouse, France for discovering that the fleas that live on a dog can jump higher than the fleas that live on a cat.MEDICINE PRIZE.Dan Ariely of Duke University, USA, for demonstrating that high-priced fake medicine is more effective than low-priced fake medicine.COGNITIVE SCIENCE PRIZE.Toshiyuki Nakagaki of Hokkaido University, Japan, Hiroyasu Yamada of Nagoya, Japan, Ryo Kobayashi of Hiroshima University, Atsushi Tero of Presto JST, Akio Ishiguro of Tohoku University, and Agota Toth of the University of Szeged, Hungary, for discovering that slime molds can solve puzzles.ECONOMICS PRIZE.Geoffrey Miller, Joshua Tybur and Brent Jordan of the University of New Mexico, USA, for discovering that a professional lap dancer's ovulatory cycle affects her tip earnings.PHYSICS PRIZE.Dorian Raymer of the Ocean Observatories Initiative at Scripps Institution of Oceanography, USA, and Douglas Smith of the University of California, San Diego, USA, for proving mathematically that heaps of string or hair or almost anything else will inevitably tangle themselves up in knots. Their paper has one of the best genuine research titles I have seen for a long time: Spontaneous Knotting of an Agitated String.JOINT CHEMISTRY PRIZE.Sharee A. Umpierre of the University of Puerto Rico, Joseph A. Hill of The Fertility Centers of New England (USA), Deborah J. Anderson of Boston University School of Medicine and Harvard Medical School (USA), for discovering that Coca-Cola is an effective spermicideJOINT CHEMISTRY PRIZE.Chuang-Ye Hong of Taipei Medical University (Taiwan), C.C. Shieh, P. Wu, and B.N. Chiang (all of Taiwan) for discovering that Coca-Cola is not an effective spermicide.LITERATURE PRIZE.David Sims of Cass Business School. London, UK, for his lovingly written study "You Bastard: A Narrative Exploration of the Experience of Indignation within Organizations."Journal of Improbable ResearchThe site will be hosting video of the ceremony in the next few days.

Topic by Kiteman    |  last reply


Free Energy - Am I insane or is it time to wake up?

Some might have noticed that I started a few, lets say, unconventional topics here.I added one just as a response to some very nasty feedback I got in other places.If you wonder what I am talking about check my topics about all things related to magnetism, "free energy" and such nonsense.The feedback I got was directed personal enough and verbal enough that I decided to increase my speed of seeding bread crumbs that might allow other people to "see" things slightly differently.Being called insane and mental case is the only things I use here as most of the rest would qualify as insults of the worst kind.The goal that was claimed I totally missed is to make people open up.Science or knowledge is as fluent as life itself.It eveloves with us, around us and through us.But we learned to use technology mostly to replace humans and to make our life easier.With that laziness also a reduced "desire" for knowledge and understand evolved.It is now far easier to "Google it" and forget it right after than to acutally learn and really understand something.A prime example is the disappearing artform of creating Japanese swords.No industrial process can produce a steel as pure and with such properties as used to be "offered" to the master swordsmith.Both are highly specialsed and rely on each other to create the perfect sword that outlasts generations.Once tradition gives way to modern life even this art will become a lost artform.We lost so much already, be it species, health, enviroment or just a "clean planet".Instead of accepting nature back into our scientific thinking and understanding we will continue to fail and get even more reluctant to learn new things.The blockbusters of science are no longer finding new laws of phsics or trying to understand things.We try to go further and further and use more and more dangerous ways to "create" the energy we continue to use more and more with no regrets.Well, other than complaining about the bills for it, which we wouldn't have otherwise...Why do we need more forms of colliding atoms to create energy?No because we need so much, only because we want more and more and at "centralised" locations.Distribution, control, money...Allowing us to use solar panels to reduce our electricity bill is nice, but try to overdo it and make good money by creating you own solar panel park and you get into trouble already.You can't see it anywhere other then back to your provider.And you only get whatever he thinks is a fair price for it, usually far less than what you pay to get it.Once you reach zero some even won't pay you money at all.And since there is always winter and night times it is only good that there will be always a need for electricity from the grid.Just try to get rid of your elecricity, water and gas connection in a township or city in case you found other sources you get for free.....Even if you build new most won't even allow you to without these "required" connections.If you need waste waster you also need tap water you pay for.And since a waste water treatment is no longer hyginic enough (despite proving the opposite) you can't get out.Gas you might be able to avoid but if there is electricity in the stree than it is already a building requirement to provie to the builder...What if all this nonsense and fakery actually has a true background somewhere?Humans are not meant to fly but we developed planes anyways.What once was a dream for a select few is now the prefered travel mode ofr most going on a far away holiday.But it is only so popular because there is a big demand.And where is demand profit can be made.Like a farmer:If you have ton of corn like twenty farmers around you then your local price will be low.Sell them a bit further away and you might get a lot more.In return our demand is closly related to the demands of those that provide the source of your demands.We all need energy and we evolve into a society that will need more of with every new generation.I try to give you hint in the form of a comparison:If you have a nice man cave and love to tinker than you might have a framed hand drill on the wall to remind you of how it all started for your grandfather.Or in most case you just liked it and got it for 2 bucks from a garage sale LOLEither, imagine all electricity would be gone and lost forever.Suddenly this crappy drill becomes a status symbol because only you can do things other people really struggle with - you drill holes with ease...Imagine the rpice you could ask to sell it..."Free energy" is the same but sadly in reverse.If a company sees a profit than it will be utilised some way.And if it happens that energy is your main income and keeps you rich and in control than you don't mind paying two or three fortunes to someone so he can forget and is happy give you his machine.Or would you really say no to life of no limits and with nothing to worry for your future generations of kids and grandkids?A few tried anyway to make a furtune themself by keeping a circle of trusted persons and finding enough willing investors to get their project going.Even if you can find some flaws there are still doubts about what someone would go through the lenght of providing online updates, sales numbers, testimonials and so on for years.Funny enough actually finding someone who is sceptic and make him check and report about it does not work either.No big university orders one or asks to really check it and provide a real world testimonial.No government or legal agency steps in to stop the "fraud" either.What is real, what is fake, what is disguise - you can figure it out if you want to.Ok, I could, but why bother if litereally everyone one already did and showed nothing works when it comes to the great unknown?Exactly for that reason alone it is worth it!People might make money now from ads or through clickbait but the topic is older than the internet already.And the proof even older than electricity...So many people would not try unless someone convinced them to try it ;)Might be just a bad joke but gets the point:If you ask 20 people if you can swim through the river to get to the other side then you might get confusing answers.1. No problem it is safe.Fully true but the guy might be from far up the river where it has no crocodiles in it...2. You could try it but a boat is safer as there might be corcodiles here.Still leaves you the option to swim as you can't be sure about the reptiles...You could go on and create a near endless list with bridges up ahead and so on.What it comes to is that depending on HOW you ask and WHO you ask the answers can be as different as day and night.In terms of science and making someone understand it take the most basic approach possible.Remember that time in school when your math teacher confronted you the existence of negative numbers?The confusion with the zero and how to add, subtract or multiply...Your teacher might have been great or you a quick learner but imagine the worst possible way to teach you an understanding of negative numbers!You know that 5 - 8 equals -3.You learned that this is true and why it is so.Imagine your teacher would have explained this extra simple like back with the apples when learning to add numbers."If there are 5 people in a room and 8 people leave the room, then 3 people must go back in so that room is empty!"Makes total sense if you expand the number game from above to 5 - 8 + 3 = 0 !!No sense at all however if you do it with people ;)People are not numbers, pressures or volumes, they are "real" to us.We associate certain things automatically, other we learn to associate and interpret through learning.Learning however is no longer actually doing all that would be involved in less technological world.We like magic tricks because we fail to understand how it is done or sometimes even how it is possible.Today it is for entertainment only.A true magician would never use his skills to scam people.But spend enough and research and you can do the same trick you saw on stage.Some not as good or not all though - thats life...Ask a good magician how how long it took him to get his new trick ready for the stage and quite often you get to hear it was years in the making.Think about that fact when you judge what is possible by dedication ;)

Question by Downunder35m