Last time on Design Squad, it
was a battle of the sexes.
This is going to be intense.
The teams had to push fashion
forward with a hidden twist.
I'm going to go for a jog.
( laughter )
Red Team's chill suit got a
cool reception.
I think I'm ready for the
next one.
But Blue Team's wild wedding
was a fashion sensation.
( cheering and applause )
And that kept Natasha in the
lead for the college
scholarship.
I'm happy I'm in the lead,
but it's not really that much of
a gap.
I'm in last place, so that's
special.
I can lose this challenge but
still be in the lead, but that's
not really too comforting to me.
No one wants to be on my team
now.
It's not because I'm not...
like, I'm a bad engineer.
I just have the Tom curse.
* We've got two days
to get this straight
* We got a challenge
just won't wait
our eyes are on the prize
* Two engineers
just set the date
* We got this client
can't be late
oh, no, it's go time
* Build it, test, fix it
debug now and kick it
* Got to get it off the ground
yeah
* Stick around and you'll see
what teamwork's supposed to mean
* It's so key
Design Squad
Design Squad! *
Is that bad?
No.
Smells like burning.
No, it's steaming.
It's a teenage pancake.
It's not really mature yet.
Ready?
Oh!
And that is a perfect
pancake.
Now, can anybody possibly
fathom what today's challenge
might be?
Scrambled eggs?
Wrong!
Roll the tape.
Hi, my name is Jay Hajj, and
I'm the owner of Victoria's
Diner.
I've been in business for
years, long enough to know what
customers want-- quality food
that's affordable and fast.
And if you're at Victoria's for
breakfast, that means...
Pancakes!
That's my uncle.
Pancakes.
Pancakes.
And they got to be good to keep
these customers happy.
Here's your challenge, Design
Squads.
I want you to build me an
automatic pancake machine that
will work in the touch of a
button.
These are the specs.
The pancakes have to be as good
as the ones fresh off the
griddle at Victoria's.
I am looking for quality over
quantity.
I'll supply the batter.
You'll supply the machine.
And the winning machine will
have the honor of cooking
pancakes for my regular
customers.
And believe me, they know their
pancakes.
Good luck.
So you got that?
He needs you to make an
automatic pancake machine that
will make pancakes at the touch
of a button.
And he's looking for quality
over quantity, so they better be
good.
Now, the task is to cook the
pancake on one side, flip it
over, cook the pancake on the
other side, and then get it off
the griddle and onto a plate.
Everything you need will be
found right here in our shop.
All right, and each member of
the winning team is going to
receive points.
Now, both machines will
actually be used at Victoria's
Diner to do the judging, but
only the winning one will be
serving pancakes to the regular
customers.
It's time for you guys to
start brainstorming.
But before you start thinking
too much, you really need to
learn how to make a perfect
pancake.
It's what we engineers call
analyzing the user experience.
That's right.
So let's get cooking.
All right.
Go too it, little flapjacks.
Who can make pancakes?
I've never had pancakes
before.
I've never made them.
Why don't we just start
cooking and see how long it
takes to make a pancake?
...making me really hungry.
We're going to do the time
before we flip it and then the
time after we flip it to do the
other side.
By doing this, we can see how
well we flip them, and it just
gives us some more time to
think.
I'm going to eat it for the
first time ever.
He's going to throw up.
It's really plain.
We should talk about how the
heck we're going to do this.
No ideas.
All right, all right, I'm going
to start out with a line.
I wish someone would come up
with some ingenious thing.
Once this pancake's done,
I'll start thinking.
Pancakes don't help you
think.
It's very hot.
All right, I'm going to go ahead
and start working, if anyone's
paying attention.
Scientific purpose of this
pancake is actually to measure
the diameter and general
circumference of what it would
be if it's one-third cup.
Six-inch diameter cake.
Is that really necessary?
Let's see what the thickness
is with a caliper.
I have an interesting idea:
nonstick surface, flip onto a
nonstick surface, flip onto a
plate.
I thought, like, flipping was
kind of hard.
If you just, like, lift it up
and have it just slide down the
thing...
We need motors, and we need
to set them to a certain time.
That's the big thing that,
you know, I'm thinking about
right now, the time issue.
Here's an idea.
What if we did something with
the pans-- like, we had two pans
attached, pour it in one side,
have it close, let it cook, and
then just flip the entire thing
over so it's on the other side
of the pan, open it, and then
just chuck it out?
Actually, that is a very good
idea.
The idea of it would be up and
then...
Did it fall?
Yep.
Oh, it did.
All right, let's take a look
at what we've got here.
Well, I was thinking it would
be, like, flip this open right
here.
Okay.
And then...
Yay.
There is a lot of mechanical
motion.
That's what makes this really
complicated.
We have spatulas.
I mean, I was just thinking,
like, why don't we, like, drill
through the spatula and use that
as the flipper?
Like, connect it to the motor
and, like, as it goes around...
You would need to attach it
on a different axial point, and
that's also a completely
different idea.
I do like it, but we're also
running short on day one, so...
Like, we haven't come up with
a design.
We're still in the brainstorming
phase.
So that's why I just threw that
out there.
I think it's going to be
really hard to do it...
I think the easiest way would
be to cook both sides at the
same time.
I was thinking some kind of
sandwiching idea where we kind
of hinge this together and then
place the pancakes right in
there and put... have this fully
automated I guess.
Are they... are they... yeah,
they're getting smushed.
Oh, good.
Oh, yeah.
That's pretty.
That's a quality pancake.
That's actually disgusting.
I'll eat it.
Okay, instead of pressed up
against the pancakes, let's have
it raised up a little.
Okay, I have to line this up.
One minute.
Muscles dying.
Now.
I hope this works.
Hey.
Oh.
How about some pancakes?
That actually turned out
really well.
Yeah, and they're massive.
Plate-- ready?
My only issue is now the
mechanics behind putting a grill
on top of another grill.
All right, right now we're
testing the kind of ripple fold.
Oh, this is hot.
This idea requires just
having the single sheet of
nonstick coating and using that
just to simply flip it and then
try to slide it off.
The one problem that I
foresee with this idea is the
problem of automation and making
this a process that we can do at
the push of a button.
Yeah.
There could possibly be a bar
up here with some strings that
pulls.
I was thinking we could do a
truss bridge.
No.
I'm just kidding.
I'm just kidding.
I like the truss bridge.
Okay, you put one truss, one
truss, and then you put a pole,
and then we can have the molder
attached, and it can just kind
of like... and you could have it
stop at different intervals.
Okay, so now Mike's going to
attempt to roll the pancake.
No.
That was my fear.
Let's just, each person, go
off, build something in foam and
wood, and see if it works.
If it doesn't, then ditch it.
But sitting here is not going to
give any progress.
No, you don't know.
And I just thought of an
idea-- ready?
You can have the perfect pancake
here, so it's actually touching
both sides.
You could also attach metal
bearings to it so that it would
just roll across, and the metal
bearings are going to get hot.
And then it gets over here
and it goes.
I'm too afraid that we're going
to jump into this and be like...
we're going to have to build a
crane to move these things.
No.
Are you not satisfied with
the brainstorming?
I'm not satisfied with the
brainstorming.
Well, let's brainstorm some
more then.
Everyone kind of bounced
around with a ton of ideas, and
nothing worked at all.
So it's kind of tough.
What if we cut out, from the
cookie... the cookie sheet?
Because since we're flipping
it...
No, that...
Why are you shaking your
head?
I didn't even finish explaining.
Because the thing... the
cookie sheet doesn't heat up as
well as... like, this stuff is
meant to heat up.
We didn't try that, though.
All right, whatever.
It's fine.
The last hour of the day, I
want everybody to have their own
mockup, and I want that to bring
to the table.
Each person do something, simple
as that.
Today was a pretty poor day
for Team Blue, I think.
We accomplished very little.
I'm not exactly sure why this
challenge is more difficult than
the other challenges.
It might just be that we're
tired, and it's a very hot day;
it's making us really irritable.
Either start testing or keep
brainstorming, but let's do
something.
I want to try this black
thing right here.
Yeah, we could use that to
flip.
We just need to actually see
if, like, they can cook it on it
and it slides off.
It smells like burning
plastic.
Ready...
There it goes-- woo!
All right, you want to see
mine?
I was also thinking, if we
timed it really slow, we could
cook it along a conveyor belt.
Yeah, but how do you flip it?
If they have the same
behavior when they flip, if we
just move the second conveyor
belt or our second grill
underneath it, we can actually
cook both sides and have that
flip effect.
Oh, that's a really good
idea.
But it's just at a grand
scale, though.
The flipping mechanism is
totally controlled by gravity, I
guess.
Really good.
So let's imagine this
conveyor belt rolling.
It's going to flip itself,
hopefully, and then drop.
Look at that.
I claim this design in the name
of Red Team.
We have minutes left in
day one.
So my idea is the two flipper
idea.
So this is about ten inches.
It's a ten-inch square.
That's approximately how big the
griddle is.
So what happens is this is
actually a metal frame, and
below here is a piece of this
nonstick material.
So it's in direct contact with
the griddle.
So that's cooking.
And after about five or so
minutes or however long it takes
with this stuff, this just
flips, and the pancake lands
flipped on this flipper.
After, I don't know how... it's
just two or three minutes I
guess, this just flips, turn it
onto a plate.
What's the frame made out of?
Sheet metal.
So, Giselle, do you have an
idea or...
I think Noah has a really
good idea.
If we just tweaked it to fix all
the problems, it's really good.
All right.
So tomorrow we start with the
double flip.
We go from there.
Any other data, the machining,
we'll divvy out in the morning.
So we're out of time.
You two are going to work on the
testing and then the frame.
Joey, you're going to work on
the motors.
I'll work on the PVC.
And I'm going to work with
you.
Everyone's going to work
together.
The secret to success: get
everybody in on the design
instead of trying to change it
last minute.
So you ready?
One, two, three, pancakes!
That's why I wanted to do
this today.
Let's go.
Whew!
Oh.
That's disgusting, isn't it?
Okay, pancake's going to
start up here.
It's going to be pulled down
here.
And then it's going to cook
here, pull, pull, pull, onto a
plate.
I guess we could start building
one conveyor belt, but we really
need to test the distance
between our two cooking surfaces
so that it flips.
Yeah, but, like, we need to
decide if the conveyor belt's
going to go all the way around,
underneath the bottom too.
Yeah.
So we're going to need two
rollers.
The other thing I'm worried
about is actually spinning that,
because the motor has, like, a
little itty-bitty shaft.
Like, there's our motor, right?
And then we have this big,
enormous tube.
How do we connect those?
PVC has caps.
So that can cover the hole.
Ah, genius.
I'm just so stupid not to think
of it.
Who's doing what?
Joey, you're going to work on
the motors and attach them to
the PVC.
You guys are working on the
testing and then the frame.
And I'm working on putting the
PVCs on the grills.
I want to see if we can
actually make a good list for
today.
So we got the frame.
We got the flipping mechanisms
themselves and the motorized
units.
All right, the frame, anybody
want to tackle that?
Yeah, we'll work... do you
want to work together?
Yeah.
That's fine.
All right, let's get a design
on paper.
The other major component is the
electrical action for the
flipper.
So that's going to be
critical, because it not only
needs to flip; it needs to be
able to go back and forth, rest
on it, and...
Yeah, that's going to be a
lot of timing and testing.
I really want that done.
Let's think of ways to adjust
the height of this.
We can use our buckets turned
over just to set this platform
on.
It'd be easy if we actually
taped this.
That worked.
It flipped over.
Let's try again.
So that was nine inches off.
I'd say that worked.
I'd say it flips.
Offhand.
Kim and Krishana have nailed
the perfect flip, and here's
how.
As the pancake falls off the
griddle, its weight creates a
spinning force, and the pancake
starts to flip.
If the bottom griddle is too
close, the pancake will
under-rotate; and if it's too
far, it will over-rotate.
So to cook the pancake on the
flip side, Kim and Krishana have
placed the griddles just the
right distance apart.
You want to try it, like, at
ten this time?
Yeah.
BOTH: That works too.
I'd say we make it nine and a
half.
The smaller the frame, the
easier and better it is to,
like, fit in a kitchen and be
more useful.
Um, you guys, so let me just
give you a quick rundown on the
frame.
Basically, it's going to be like
a drawbridge.
If this is the whole griddle,
put a piece of plywood
underneath it, plates right
here.
We make a tower, and we can put
the motor up here.
That can wind a piece of string
that would be attached to the
metal.
And basically, what it can do
is, if there's piano hinge that
we could rivet right onto the
griddle, we can just make it
come up and then unwind it to
come down.
To put it on the plate, it would
be the exact same thing.
We'd have another motor mounted
onto the mast, and we could just
pull it up, pull it down--
simple.
And I can build the frame in a
really short amount of time.
I like it.
So...
Once I've done the frame,
then let's get those motors on,
because we need to see if it
lifts.
If not, then we need to fiddle
with the gear ratio.
More powerful motor.
The motors are a long way
away from where we are right
now.
Giselle, why don't you help
Natasha?
Joey, do you have an idea of
how you're going to attach the
PVC pipe to the motor?
The caps for the end of the
PVC pipes we can just attach to
it, and then drill a hole
through it, and then put an axle
mount right through both pieces,
kind of mount it along the side
of the axle.
Then you can spin the axle
using the motor.
And the motor can be attached
to the outside of the frame.
Yeah.
I couldn't find anymore
gears, other than the ones that
are right in front of me, so
what I'm going to do is
basically work with what I have.
The speed doesn't really matter.
The problem is the torque.
Joey's right.
If their motor doesn't have
enough torque, their conveyor
belt won't turn.
So what is torque?
Torque is different from force.
Force is how hard you need to
push or pull an object to move
it in a straight line.
Torque is the amount of effort
used to rotate an object.
So Red Team needs a motor that
provides enough torque to spin
the roller and move the conveyor
belt.
Is it going?
Supposedly, it should.
All right, let go of the
motor.
Ha, ha, that's hilarious.
I'm going to start to build
the frame.
All we need to do is put
pieces here, another piece here.
Like, it's actually just going
to be like a skeleton, and then
you're just going to put pieces
on top, essentially.
Okay, that's cool.
All right, let's get this
done.
This is a terrible idea,
Giselle.
Will you get me the other jaws
of life please?
Why don't we just use the
saw?
No.
One thing I'm worried about is
that it's not going to fall onto
the griddle.
This is the frame for our
flippermajig.
This is going to be riveted
together, and this material is
going to be on the bottom so
that, when it's cooking, this
will be in direct contact with
the griddle.
When it flips, it'll just flip
onto the other flipper.
We're going to take this here
hinge, and then we're going to
drill it to the hot plate.
It's just a little bit
crooked, but we can adjust it
when we mount the hinge to
compensate for it.
Huh?
Oh, it's hitting on this.
This piece of nonstick
material needs to be in constant
contact with the griddle so that
the pancake really heats up and
gets cooked correctly.
What are you doing with the
spoon?
I'm tying not to burn myself.
Be careful.
It's not.
Actually, it's not hot.
It was.
It was.
It was not.
It was warm, and I thought it
was hot.
You're using a spoon.
What I'm doing is sewing
together a conveyor belt.
I'm putting these elastic bits
in here so that we can stretch
it over our rollers and it will
keep nice and taut.
I never thought that sewing a
women's bathing suit to fit my
friend Noah would help me out on
another challenge, but look at
me now.
So you'd mount one motor
here-- one motor here, one motor
here.
Why don't we put a piece of
wood right here?
The reason why we have it
this high is so that it has more
of an angle.
Why don't we do that for the
farthest one back?
And then for the second half,
why don't we just put another
one right here?
Yeah, we have one up here and
then one directly below it,
because we increase the
mechanical advantage with the
height.
Mike is right.
Placing the motor higher has an
advantage.
Torque is needed to lift the
tray, and the key is upward
force.
If the motor is placed too low,
the string won't pull in an
upward direction, and the tray
won't lift.
If the motor is placed higher,
it will pull the string in a
more upward direction, flipping
the tray more easily.
And for both trays to flip at
similar speeds, the ropes must
be at a similar angle, and
that's why their motors should
be placed at different heights.
Hey, Red Team, what's the
status?
Working.
Okay.
Pending.
Good, good.
What's the status of the project
versus the status of you?
Anybody?
Anybody?
We're just working real hard.
Have you guys tested it yet?
Pretty much what we're
waiting on is for the motor
assembly.
Okay.
And then if all you're waiting
for is the motor assembly, why
is all this stuff still spread
out and not assembled?
You guys are aware you have an
hour and a half left?
You need to be really working
here so you can finish in time
to make it work.
It is crunch time, my
favorite time of the day.
What's cooking, Blue Team?
It's about an hour and a half
left, so we're definitely into
crunch time.
What do you guys need to do to
get this thing up and running?
Smelt the motors, get the
timing right, and that's it.
And we're going to help you
by, like, timing how long it
takes to cook one side, the time
to flip.
Exactly, because we're going
to help you guys program digital
timers so this can all implement
in a set fashion.
You got to focus, focus, focus.
You guys need some energy.
Pep it up.
Don't even tell me.
Is it this?
All right, all right.
Ready?
Reverse the direction,
please.
Is the motor spinning or
what?
It's too tight.
That could have gone better.
I think that motor's going to
work.
That's not even going to
move.
Let's just move on to the next
one.
Where's the other one?
The spool needs to not have
that much string on it.
How does the wheel attach?
We need to take off some of
the string.
Okay, yeah, do you see?
Just one test, one test.
Go.
Woo!
The reason why we switched
motors is because the motor...
Didn't have enough torque.
...really didn't have enough
torque.
We just switched to the ones
that we used for the soccer
ball.
Yeah, these ones are nice and
slow, and they have a lot of
torque.
This motor, you turn it on, it
kicks a lot.
Yeah, I know.
So I just want to make sure
it's really tight.
That should do it.
Krishana, do you want to
watch and see if it works?
Ah, it works.
Guys, that's awesome.
It has enough torque.
Other way, other way.
Nice.
Once we sew that, the duct
tape won't be a problem.
It won't get stuck.
Fetch me my needle.
That's pretty great.
Now it's all ready to go, so
we can get ready for our second
test.
Okay.
All right, stop.
That's good, that's good.
Flip it.
All right.
Three, two, one...
Flip.
( cheering )
How long do we let it cook this
time?
The first side three minutes,
the second side two minutes.
Ten, nine, eight, seven, six,
five, four, three, three, two,
one.
Stop it, stop it.
Yeah, beautiful.
Yeah.
Bon appétit.
Do you want to do it again?
No.
All right, Design Squads,
welcome to the moment of truth,
the big pancake cook-off with
our client, Jay.
Jay and I have taken the time to
program these machines, and
we're ready to see how they're
going to cook up the pancakes.
And, Red Team, you're up
first.
So this cooks one side of the
pancake up here.
Then the conveyor belt will move
two pancakes down onto the other
conveyor belt, and it'll cook
the other side.
Once they're done, they flip
onto a plate all the way at the
end.
So they're going to cook.
They're bubbling up nicely, as
they're supposed to, with this
great batter.
I like this.
I think I want one right now.
I'm going to wait till they
cook, myself.
You want to make sure it's a
little bit cooked on the other
side so that it's not doughy.
It's looking good.
Yeah.
Five more seconds.
There we go.
This is perfect.
This is the right time to flip,
right now.
( cheering and applause )
Look at that.
Nice job.
Yummy.
The pancakes look great.
The color is good.
The size is decent.
Let's see how it's going to land
on the plate.
Beautiful.
( cheering and applause )
All right.
Very good.
Beautiful Red Team pancakes.
What do you think of those?
I think they're beautiful.
Look how beautiful they are.
Blue Team, are you guys
intimidated by these pancakes?
No.
All right, well, I'd say Red
Team set the bar pretty high.
Let's see what your machine can
do.
All right.
Okay, so our design works
with two separate flips.
First the pancake gets poured
here, and it cooks for a while,
and then this motor will trigger
a flip, and this will be brought
up, and the pancake will flip
over on the other side.
And then when this is done
cooking, it'll flip right onto
the plate-- very simple, very
compact.
Very smart.
Woo!
Look at that pancake.
They have one pancake.
We have deuce pancakes.
Three, two...
Woo!
Nice.
( applause )
That beautiful Blue Team
pancake.
Automatic.
Pretty impressive, you guys.
Very nice.
It has a nice color to it.
It looks good.
Well done, Blue Team.
All of these pancakes look
great, but only one machine can
win.
So you want to go help us make a
decision?
Let's go.
All right.
I thought both machines were
good.
I thought both of them were a
smart idea.
And both machines did great
pancakes.
They both made exactly the same
pancake.
The bigger machine did two
pancakes, which was great, but
quantity was not an issue.
It was quality.
The smaller machine was small.
I could fit it anywhere in the
kitchen.
And in a busy kitchen like mine,
you need as much space as
possible.
So, Blue Team, you won.
Ah!
points goes to each
member of the Blue Team.
And that means Blue Team is
serving up pancakes to Jay's
customers.
Hey, guys, we got your
pancakes here.
Excellent.
Lovely.
Ooh, wow, they look great.
Enjoy.
Thank you very much.
Captioned by
<span> Media Access Group at WGBH
access.wgbh.org
So after nine challenges,
Natasha still has the recipe for
success and hangs on to the lead
with points.
All right, Deanne, here's a new
challenge: describe the Design
Squad Web site in ten seconds.
Go.
There are games, photos, new
challenges, videos, quizzes,
scoring updates.
Time's up.
Ugh!
Just go to pbskidsgo.org.
I am Pete Gosselin, and I'm a
mechanical engineer, and I make
the ice-cream machinery that
makes all the great flavors here
at Ben & Jerry's.
The culinary people I work with
challenge me every day:
"Wouldn't it be great if we
could do this inside a pint of
ice cream?"
The engineering we had to do
with this particular flavor was
to put two different ice creams
together and then put a frothy
top on it like you'd find on the
top of a root beer float with...
concoctions.
And what we had to do was to
modify a filler so that it could
handle two different kinds of
ice cream while introducing a
core of caramel.
The engineering challenge with
Chunky Monkey is how do we put a
whole lot of big chunks into a
relatively small container.
We have to understand how the
chunks flow through pipe into
the ice cream and how to make
sure that happens at very high
speed.
If you're a problem solver, you
want to make the world better,
even in small ways like making
ice cream, engineering's a great
way to go.
Mm, that's good stuff.
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01x09 - Batter Up
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In each episode, contestants are separated into two color-coded teams to complete engineering projects for real-life clients.
In each episode, contestants are separated into two color-coded teams to complete engineering projects for real-life clients.