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hi and welcome to the Lego Technic
designer Workshop today I'm going to
show you the biggest technique model we
ever developed and with me today I also
have Marcus the designer of the bucket
wheel
excavator so Marcus tell me why is it so
big
yeah a lot of reasons in real life
they're also quite big because it's um
it's about physics you know you have to
scoop something up from here and put it
on a conveyor belt through the machine
drop it down on the other conveyor belt
and get it out of the machine again so
it it's about physics you know because
it has to go up and fall down and go out
again so this is why it's so big and you
say in real life it's also really big
you actually you're from Germany yes and
you actually grew up in an area where
they have these machines how do you
remember that exactly when I was a
little kid uh there was always happening
when they tried to move them from one uh
Gravel Pit to the other one so there
it's a it's a big happening where a lot
of 10,000 people are coming watching
these and they are actually over 200 M
Longs and um almost 80 90 M high and
it's it's spectacular to see them it's
really amazing what do you use a machine
like this for it's a for mining in soft
soil so everything which is soft they
can scoop up with the with the buckets
and then uh put it on a big actually
they have a big system of conveyor belts
and they can move a lot of uh soil from
one place to another so what was the
biggest challenge with this machine I
think the biggest challenging is
actually balancing machine because it's
so big you know like it's you have a
very heavy part in the front and then
you have to counter this and this is why
the machine is build up like this the
whole arm swings on two um turntables
here so and then you have uh the battery
box and the motor in the back as a
counterweight so that machine is in
Balance this actually was the biggest
problem with all the machine to actually
have the balance so this machine also
comes with build and power function
which actually uh makes it run and dick
but there also extra stuff exactly to
actually to have a nice experience doing
it we added a few bricks so we can
actually instantly start playing with it
and you get a truck where you can
actually take this brakes and through
the machine and fill the truck up so it
actually runs and dicks for real it runs
and dicks for real yeah it took quite a
while to actually make it do it so you
could actually show me how it works
because I uh brought something extra
because
uh I actually built myself a
mine and I just wondered if you could
show me how it
works of course um first of all we have
to start the motor like uh and now
nothing is happening because you can
choose all the function so I start the
bucket wheel at the end of the uh other
conveyor belt I put my small truck so
actually the stuff falls into the truck
like
this and then I start
lowering the bucket wheel into the soil
and now it starts
sticking and then you can see it
actually starts then after a while the
first bricks start falling into the
machine
here they go up here the conveyor belt
fall on the small uh sleds there and
then on this conveyor belt and then you
actually can start turning the machine
so like in the real life it actually a
start turning the machine in here and
then it also takes the other soil and
then I put the uh thing here that is
actually synchronized so it actually
stays with the machine here and when you
turn the machine the brck still will
still fall into the truck here I have to
stop it now before we uh run run into
the our mine here but this is how it
works now you're done we're sticking
there I just uh raise the uh arm a
little bit and you have want to go in
new
position then you can go in new position
drive here a driving position and you
want to go backwards then go like this
and then the machine will drive away
from the digging side and then it's
ready for a new place to dig exactly
so this machine you can rebuild this
machine into an alternative model yes
and that is uh this
one the mobile aggregate processing
plant what does that actually do it's
actually kind of the Sorting machine you
actually you can fill your bricks in
here you can see you have two kinds of
bricks you have the large ones and the
small ones and this is actually sorting
this bricks so if I take these bricks
into the scoop here like this
and then start the machine which I will
do here like this and you can see while
sorting it then the the small bricks
will fall out here and the big bricks
will come out here so it's a a quite
clever mechanism we did there actually
for sorting it
out now that we sorted that out you can
actually go and buy your own bucket
wheel excavator and if you wish to you
can rebuild it into this sorting machine
two amazing machines so until next time
happy building and take care
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