How to make Spider Silk Thread

 by Persona
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During the summer months, spider webs cover every corner, and every open space of my yard. These webs are humongous, the largest ones being about 5 feet wide. The webs I encounter in my garden are webs are from several kinds of Orb spiders. None of the spiders that build the giant webs in my garden are poisonous. This is lucky for me, because I have walked into countless numbers of webs.

I have also encountered many abandoned webs, which gave me the idea of harvesting these out-of-use webs for their silk. Having walked into so many webs, I know how unbelievably strong and stretchy their threads are. Spider silk, in fact, is the strongest fiber ever discovered. Spider silk is stronger than steel, for its diameter; that is, a thread of steel would be weaker than a thread of spider silk of the same size.

Scientists have been working on how to entirely artificially duplicate spider silk in the lab for a while, but have not yet been able to make the silk entirely without spiders. I have included some websites of some recent research on the subject at the end of the instructable.

In this instructable, I will show I how I harvested abandoned webs and turned them into threads that I could use to sew.
 
 
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Step 1: Understand which species make the right webs

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Where I live, in southern North Carolina in the USA, there are about four types of spiders that make good webs for collecting:

1) golden orb spider,
2) black and yellow orb spider,
3) crab orb spider, 
4) orchard spider


All of these build large, regular orb shaped webs, with strong fibers. None of these spiders are dangerous, but I recommend avoiding their bites anyway, because it could be painful, and there may be those who are allergic to their bites. I have never heard of anyone being allergic to orb spiders, but it's not impossible. Also, if you got close enough to one of these spiders to actually get bit by it, you were probably seriously annoying it (I have actually poked a giant golden orb spider once to show my uncle that it was harmless).

Before collecting webs from any spider, please make sure you know what kind of spider it is. There are poisonous spiders in the USA. Outside the USA, I cannot speak with authority about the kinds of spiders, so you should do you own research about spiders before collecting their webs. Especially in Australia (home of the most poisonous spider in the world)! In the USA there are two web building spiders that have a deadly venom, and should be avoided at all costs:

1) The black widow (and brown widow) spider
2)The brown recluse


I have not seen these in my yard, but I have avoided their habitats on purpose. The picture I have of them are not mine, because I did not want to stick my face in them to take their pictures. Luckily, these spider's webs look completely different than the four spiders I mentioned earlier. While the four spiders I mentioned all build webs in the open, above ground, and in regular orb shapes, the poisonous spiders build irregular webs in piles of wood, rocks, bricks, and other things. These spiders are often found in garages, for instance, or firewood piles. I will say it again that these spiders are very dangerous! If you are bit by one ever, go to the emergency room!

I have included pictures of the spiders I mentioned, and their webs.
 
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Master97865 says: Oct 19, 2012. 9:13 AM
Wow. This is gorgeous! I never knew that you could make thread from spider webs! Too bad I don't live anywhere near a place where the spiders you listed live.
emmieberry says: Dec 4, 2011. 12:26 PM
This is hands down the most interesting instructable I have ever seen, It's well done and I learned a lot from it! : D
tinker234 says: Jun 3, 2011. 7:38 AM
hey wow could you go and cath spiders and begin a spider web farm
gthomas14 in reply to tinker234Oct 6, 2011. 6:35 AM
YEAH THATD BE AWESOME!!
tinker234 in reply to gthomas14Oct 7, 2011. 3:44 PM
yeah it would be fun
yoshi1 says: Feb 26, 2011. 4:11 PM
I think ticks should be added to the arachnid list because they have 8 legs too.
zzoe in reply to yoshi1Mar 27, 2011. 2:29 PM
No need to add them, they're already there. Ticks, and all other mites are arachnids. You had the right idea.
-Z.
yoshi1 says: Jan 22, 2011. 12:00 AM
You should see the size of a camel spider they are massive! I'm not sure if they make webs though?
Toxonic0 in reply to yoshi1Jan 25, 2011. 9:32 PM
No they don't, they're not actually spiders. They're more closely related to scorpions. No web at all.
raja681 in reply to Toxonic0Feb 28, 2011. 9:23 PM
srry said spider meant arachnid not spider srry they are in the same order as the spider and the scorpion which makes it no more closely related to either
XaviaPhoenix says: Feb 17, 2011. 7:47 PM
I bet that if you were to weave a friendship bracelet out of spider's silk, it would last for YEEEEEEARS. Some of the strongest stuff is said to be 10 times the strength of Kevlar. That's awesome.
nutsandbolts_64 says: Jul 19, 2010. 4:57 AM
Would daddy long-leg spider webs work?
Persona (author) in reply to nutsandbolts_64Jul 19, 2010. 11:18 AM
I think it would, especially if this sentence from a website on them is any indication:

"the spider throws tough stiff web material over the victim and disables its mobility"
MaXoR in reply to PersonaJul 22, 2010. 11:23 AM
I think most people when talking about a "Daddy Long Legs" will be referring to a harvestman arachnid. You didn't exactly use a well known website to source your information, and most side websites will get certain details mixed up. Either way, the harvestman arachnid is not even capable of producing web in any great quantity, if at all. If you see one in a web, he is trapped, and going to die! Although yes, on Myth Busters they proved that it is possible to entice a harvestman into biting into your flesh, a reaction because of it doesn't mean it punctured the .5 - 4mm of flesh to the other side, likely only puncturing the first layer or two, and causing an irritation. The average one's fangs are only .25mm long, and they don't have strong uncate fang muscles either. They do however have a wonderful myth that they have some of the most poisonous venom, and that likely stemmed from the fact they prey on redback's (Part of the black widow family) and win consistently, however scientists have learned it's merely because they are quicker, and get the upper hand, or neck...lol!
frabotta in reply to MaXoRDec 19, 2010. 9:50 AM
@MaXoR

I believe you are confusing harvestmen (order Phalangida) with spider, Pholcus phalangioides (featured on Myth Busters), that has a near-cosmopolitan distribution. As true spiders, Pholcus DOES possess fangs, can penetrate human, skin, and 'throws' stiff web silk around their prey.

Harvestmen (order Phalangida or Opiliones), while arachnids, are not spiders and possess neither fangs nor silk glands.
HisDivineShadow says: Aug 28, 2010. 12:39 PM
A thread of spider silk the thickness of a pencil cna stop (cut through) military jerts moving at full speed...
mettaurlover in reply to HisDivineShadowOct 28, 2010. 12:12 PM
Yeah. I need to collect a LOT of silk... Gonna make a climbing rope if I can.
manadhon says: Jul 22, 2010. 12:47 PM
It's kinda nice knowing that here in Michigan all I have to worry about is the brown recluse (which is not native to Michigan as it comes in with wood shipments), and the northern black widow (which sadly, is native to Michigan). Other than those two species, there isn't really any interesting species of arachnid here
nobelium106 in reply to manadhonJul 25, 2010. 7:44 PM
For the record, the brown recluse is actually much more poisonous than the black widow. Black widow bites are painful, cause inflammation, and require doctors etc. Brown recluse bites cause necrosis of the flesh rapidly and require a doctor for not only anti venom, but usually removal of flesh to amputation.
bundatbrown in reply to nobelium106Aug 27, 2010. 6:45 PM
Where I live (west coast of North America) we have many black and brown widows. It's weird because brown widows are from Florida. The Brown recluse is the most poisonous spider,and following that is the brown widow. They're not really dangerous though, because they don't bite as often as the black widow.
chad oliver in reply to manadhonJul 22, 2010. 8:15 PM
Yeah, but New Zealand is even better: no spiders that could hurt anything bigger than a rabbit (if that). Plus, no snakes or other bitey things!
manadhon in reply to chad oliverJul 24, 2010. 8:01 AM
your wrong about that.there are poisonous spiders in New Zealand, three species to be exact.the kapito ,white- tailed and red back spiders. 1.red back bites can cause severe pain, aches and profuse sweating. 2.kapito bites may lead to severe pain around the bite area and possible muscle cramps. 3.A White-tailed spider bite usually leads to severe pain and swelling around the bite area, but there are no long-lasting effects. and yes you are right about the snakes and other "bitey" things"
yoshi1 in reply to manadhonJan 21, 2011. 4:51 AM
But aren't there mosquitoes? They can kill!
manadhon in reply to yoshi1Jan 26, 2011. 1:36 PM
most mosquitoes in michigan suck blood. few will carry diseases as disease carrying mosquitoes are more common in tropical regions
lop145 says: Jul 19, 2010. 1:39 PM
no dangerous spiders here exept if your allergic. and there's just one spider that has a nasty wasp like bite but that one lives under water.
chuckr44 in reply to lop145Jul 20, 2010. 9:11 AM
The underwater spiders I know in the US do not live underwater, but they do hunt underwater by carrying a bubble of air with them.
lop145 in reply to chuckr44Aug 5, 2010. 9:31 AM
this one makes an underwater web and fills it with air. they are quite rare and only live in heavily grown underwater places. although holland is a country with a lot of water not mutch is so grown that it can make its web there. never been bitten by one and i'm not planning to be bitten anytime soon.
Iridium7 in reply to chuckr44Jul 21, 2010. 12:13 AM
You are kidding right? How can they make a air bubble? I didn't even know they had lungs?
chuckr44 in reply to Iridium7Jul 22, 2010. 4:38 AM
Try this link for a pic: http://www.answersingenesis.org/articles/am/v3/n2/scuba-spiders
chuckr44 in reply to Iridium7Jul 22, 2010. 4:36 AM
They don't "make" an air bubble, the air gets trapped between the hairs on the outside of their body and makes the body look silver. They do not have lungs, their respiratory system, I believe, is an open system. Air travels freely inside their body cavity.
SaFemme in reply to chuckr44Jul 22, 2010. 9:51 AM
Actually, yes, some spiders do "collect" air at the surface to fill their air bubble underwater...
frabotta in reply to chuckr44Jul 22, 2010. 8:13 AM
Arachnids, including spiders and scorpions have a respiratory organ called a "book-lung" because it looks like a large open book with the pages "leaved-out" to each side. Attached is an image of a tarantula's well-developed book-lungs.
naruto the ninja13 in reply to lop145Jul 19, 2010. 9:04 PM
eek! underwater spiders? NOW im scarred!!!
ProfessorMcKillswitch says: Jul 25, 2010. 9:03 PM
Has anybody tried using it to sew clothes up with? Does it work well? Be really cocol if the thread were really practical.
alegriagarden says: Jul 22, 2010. 5:56 PM
Thats a great instructable. May I ask how much thread you have collected so far ? I am a huge fan of spiders i think they are incredible creatures and often had them as pets. Thanks again for the tutorial.
Persona (author) in reply to alegriagardenJul 24, 2010. 12:26 PM
I have about two feet of it.
MaXoR says: Jul 22, 2010. 11:27 AM
This is a great instructable, I like this idea. So if you were to harvest enough silk, weave it into a fiberglass structure, and epoxy it, wouldn't it make some of the lightest, strongest surf boards in the world? Or better yet, imaging a silk fiber hood, or door on your car..... can we say indestructible????? lol, just a thought
MaXoR in reply to MaXoRJul 22, 2010. 11:34 AM
I also am not really concerned about harming captive bread spiders for the sake of eco friendly-ness for the masses (What does more harm, all the plastic in our world, or 15,000,000 dead spiders a day that aren't even from the wild, and bread in captivity)..... Parts made from silk thread would be bio-degradable to an extent, however if a bio-degradable epoxy could be used, or maybe just have a treatment to use on scrap parts, that would break down the epoxy, and leave just the fiber. Then you either recycle the fiber, or harvest more, and let that just degrade to dirt.

Don't know if any are on the spiders side vs the plastic side, however if we keep polluting with our plastic's, there won't be spiders anyway..... so choose your poison.....
lukieh in reply to MaXoRJul 22, 2010. 11:38 PM
Whether or not you're concerned, if I remember correctly attempts so far to breed spiders in any kind of intensive way fail because they eat each other.
MaXoR in reply to lukiehJul 23, 2010. 10:42 AM
That sucks, It would be nice to have a great alternative, however I'm sure someone would have already done it by now if it was possible, as with most things it seems...lol I was just throwing that out there since I thought it would work from what I was hearing and reading. However if large operations don't work because they are cannables and eat eachother, then I can definitely see how that would not work. Thank you for that info.
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