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How Strong Is Rope Made From Soda Bottles?

in the past you’ve seen grant teach you
how to make a rope maker and how to make
a few types of DIY rope well today we
are gonna test those times of rope we’re
gonna see how much weight they can take
guys you’ve seen grant micro before
you’ve even learned how to make a rope
maker from him and today we’re gonna put
that to the test this one is made from
cord we’ve also got some sisal twine and
finally a rope made out of soda bottles
so to test these types of ropes we can’t
just say oh we pulled this hard until it
snaps so we’ve got an industrial scale
it’s a cream scale we’re gonna secure
the rope in between this scale and a
truck and then start driving away we’re
gonna film this screen and see how high
it gets right before the Rope gives out
maybe the ropes will snap maybe the
ropes will stretch to the point where
they’re not securing anything anymore we
just want to see how high this scale
gets before that happens that should
tell us how strong our rope is 4850
almost 50 143 pounds not bad okay you
got like 10 pounds on me here’s the
basic idea we’re gonna take three kinds
of DIY rope that grant is showing you in
the past and we’re gonna put them on a
powerful scale and pull on them with a
truck to see how long they last before
they snap almost 60 okay so our powers
combined who doesn’t do much once we’ve
made some rope that we can hold on to I
think we’ll be able to throw a lot more
than that yeah and the problem right now
is that it’s less about strength than
we’ve made all of our types of rope
we’ve got them out here and we’ve got
two big old trucks and we’re gonna pull
them and see what happens to them
first off best bet which one do you
think is gonna be strongest I kind of
think that the the triple braided sisal
rope is gonna be the strongest great
yeah I think the Mason twine is actually
gonna be stretchy er but the sisal twine
is gonna be a lot stronger all right so
we have a single piece of the sisal a
single piece of the Mason twine then for
both of those we’ve got three twists
braided together which is actually six
strands because it’s three times going
there and back and then we have three of
those twisted together as well as the
soda bottle rope that Grant made we’re
gonna test all of them just want to
point out we’ve we’ve made a quick
modification to our scale you can’t
really see too well what’s going on
necessarily but this is a GoPro that’s
just facing the numbers and we don’t
know this might twist or something as
we’re pulling on it and this way the
GoPro is sort of locked in place it’s
always facing the screen we should
always be able to see what’s on the
screen it’s filming at a high frame rate
so right before the rope breaks we
should see the maximum pull strength
that it gets to first up is the single
strand of Mason line we’ll see what it
gets to I bet that immediately just
all right you’re starting it lifted it
up all right all right you can add a
little bit more tension cameras spinning
around like crazy done I think it did
actually break at the knot doesn’t
matter how strong your rope it is it did
not campaign
most of the time you’re not gonna just
have two plates squishing down on top of
your rope as you pull away so that
should be our first one yep let’s move
it’s lifting it broke so that broke very
quickly the interested to see you with
that God – all right so we’ve tested our
individual strands next is our three
strand rope and we’re going with the
sisal twine this time because we think
it’s gonna break faster just after that
initial test so these little u-shaped
brackets they tighten down quite a bit
and this is what we’re gonna be using
for everything other than the single
strands just because we don’t have to
tie knots this way we’ve got liftoff
better than the last one stop this
wasn’t as tight as I was hoping it would
but it still snapped the twine yeah so I
think it was a good result see once we
get to the bigger ropes but now I’m
baking on the Mason twine it it is
keep going actually putting stasher I’m
not sure what failed I think it was just
the rope this looks very broken yeah now
that I would say definitely had a much
higher strength using these little you
bracket shaped pieces one of them is now
missing because I think when the rope
broke it kind of got launched somewhere
and we haven’t yet found where that
somewhere is haha I got it
I don’t think it needs much interaction
but I’m gonna back up workers started
launching metal pieces it is lifting is
stretching it is broken
yeah broke it does keep breaking near
where we’re putting tension on it but
that is extremely common most cords
ropes tethers will break where you have
a not just because it’s being pinched
there’s extra pressure right there still
think we’re getting good data okay time
for what we assumed to be our strongest
we have liftoff stretching stretching
more rope
nice holy cow this stuff is crazy strong
so I think these two broke and then this
one stayed on and just kept stretching
and then it broke as well we still got
one more to test we do we have our soda
bottle rope and I don’t know much about
the strength of the soda bottle rope but
we want to know
I believe grant hung from the soda
bottle rope so some amount of weight
that’s an indication but it’s not an
exact number so now we want to get an
exact number
I do think it will break but I think it
stretching holy cow broken looks like we
just had one one of our little ropes one
broken glass yeah same thing that
happened with the other one like two of
them broke and then it stretched a
little bit more and then it broke more
very cool let’s take a look at our
all right reviewing footage first up the
string the Mason twine one strand of it
I think it reached five pounds wow they
can pull more weight then I can pull
just with the two bars together 41 4000
849 that was a 49 88 or 49 49 yeah just
a second alright I will remember
hopefully this man and it didn’t it
ain’t even anger didn’t even get tight
yeah it reads it 1010 flash up there I
don’t think it’s always that week I
think we had like a leaf spot so it’s
that it’s made from fibers just these
super thin fibers twisted together and
overall it’s decently strong but there
are sometimes weak points and I think we
maybe had a knot tied on a weak point
because 10 pounds is pretty little it
did obviously break without even pulling
the line tight so I might have really
just been 10 pounds on it this is the
sisal rope the six strands of it
hold tight a little bit of stretching
and then this snap that’s 39 139 I think
it might be switching from 20 to 30 but
we have one backward 69 you know the
mason punch so six strands of the Mason
20 twisted together
all right 189 so 129 to 139 at 189 with
the Mason twine just one was about 130
we don’t know exactly because our scale
didn’t get perfect reading but about 133
times that do you think it’s going to be
390 the slide is what’s interesting on
this one 99 yeah I think we’re at 293
there all right so not three times as
much almost up to 300 pounds those
points where it’s binding together where
it’s actually being attached those are
gonna be a little bit weaker so it’s not
fully as strong as three times the
strength of one but it’s quite a bit
stronger more than double I made a rope
out of twice 300 pounds is you can be
able to move a lot of stuff at 300
pounds and getting a good strong rope oh
my goodness
another two of them broke person there
just once just wretch down hold on
second a lot but before when the first
one broke
we had a high point of like 398 and
everything almost 300 and then almost
400 for the for the Mason twine not
quite there not that it’s pretty serious
rope and now we’ve got one left the soda
bottle where you think the soda bottle
opens up I don’t even know where to
begin to guess on this one it just goes
out of frame no way that’s it like 4:40
this soda bottle rope is our strongest
is no it’s bottled er it was still a lot
thicker too but it doesn’t matter that’s
that’s volume not mass that’s crazy I
did not think the soda bottle rope would
be that strong hey guys thanks for
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see you tomorrow [Music]
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