CBSE Class 11 > Class 11 Videos > Introduction to 3D
Introduction to 3D Video Lecture - Class 11
FAQs on Introduction to 3D
| 1. What is 3D printing? |  |
Ans. 3D printing is a manufacturing process that creates three-dimensional objects by adding layers of material on top of each other. It is also known as additive manufacturing. This technology allows the creation of complex and intricate designs that are difficult or impossible to produce using traditional manufacturing methods.
| 2. How does 3D printing work? | |
Ans. 3D printing works by first creating a digital model of the object using computer-aided design (CAD) software. This model is then sliced into thin layers, which are sent to the 3D printer. The printer then builds the object layer by layer, using materials such as plastic, metal, or resin. The printer follows the instructions from the sliced model, depositing or solidifying the material to create the final 3D object.
| 3. What are the applications of 3D printing? | |
Ans. 3D printing has a wide range of applications across various industries. It is used in manufacturing for rapid prototyping, creating customized products, and producing complex parts. It is also used in healthcare for creating medical implants, prosthetics, and anatomical models. Other applications include architecture, fashion, automotive, aerospace, and even food industry.
| 4. What are the advantages of 3D printing? | |
Ans. 3D printing offers several advantages over traditional manufacturing methods. It allows for greater design freedom and customization, as complex shapes and intricate details can be easily created. It also reduces waste, as only the required amount of material is used. 3D printing enables faster production, as objects can be printed on-demand without the need for tooling or molds. Additionally, it enables the production of lightweight and optimized structures.
| 5. What are the limitations of 3D printing? | |
Ans. Although 3D printing has numerous benefits, it also has some limitations. The size of the objects that can be printed is limited by the build volume of the printer. 3D printing can be a slow process, especially for large and complex objects. Some materials used in 3D printing may have limited strength or durability compared to traditional manufacturing materials. The cost of 3D printers and materials can also be a limiting factor for some applications.
Text Transcript from Video
hello friends this video introduction to
3d geometry part 1 is brought you by
exam fear calm no more fear from exam
welcome to 3d in this video we will
study three-dimensional space
coordinates of a point in a space
distance between two points in 3d space
an order sectional formula in 3d space
so we will study three-dimensional space
coordinates of a point in 3d space
distance between two points in 3d space
and session of formula 3d space before
we study or before we go into 3d space
let's understand why do we need to
thirty three dimensional let's assume we
have this room and we have a ball this
ball moves in the room it bounces back
came back we threw the ball it it
bounced back from the wall and came back
now if you see this ball went through
various directions in the room first it
went straight
it took a left again it bounced back and
came so in this case there are three
vectors this ball can move in X
Direction y direction also a z direction
if you see you see the ball move in this
direction then this direction and then
killer session there are three
directions involved the movement of ball
in the room is three-dimensional so this
is one good example of application of
three dimension in the real world also
if you see this aeroplane it comes if
you here also you see there is an x
coordinate is a y coordinate there is a
z coordinates here also three dimensions
involved so these are two examples just
to show why do we need three dimensional
in most of the real-life scenario we do
need three dimension now we'll start
with the coordinates pain in three
dimension in three dimensional there are
three planes actually so if you see this
plane is one plane I'll say plane one
blue plane plane to his second plane and
plane red is third lane there are three
planes with three planes you get
three-dimensional space
also these three coordinate planes
divide the space into eight part and it
is called up ten did you see this part
is called part one correct this part is
called part two again this part
somewhere we have part three and this
part is part flow I'll write here to
make things we have one two three one
sorry this is one just two this is three
info so there are four four parts here
74 part below you can say 5 this is 6
this is some way here not hinted now he
didn't it is 7 and this is 8 there 8
part and they all equal parts they have
got octants so 3 dimensional space
consider three coordinate planes and all
these coordinate plane divide this into
a different part and this is what we
call three dimensional space in two
dimensions you have only one coordinate
one one space and here we have three
different planes if you see here they
have various values for example here if
you see if you take this as x axis this
is y and this is Z this is the positive
x axis again say 1 2 3 4 here it is
negative negative x thing is a - 1 - 2 -
3 - 4 - 5 similarly for y this is
positive positive 1 2 3 4 this is
negative similarly for Z we have some
positive values and for some negative
value thus you can see in one coordinate
for example you are talking about corden
one all x y and z XY and all are
positive but when you talk about current
- here you see z is negative Y is
positive
similarly this quadrant you see
z is negative y is negative Y is
positive only X X is negative only Y is
positive here similarly in this quadrant
II you see this quadrant everything is
negative x is negative sorry not this
the other one the one the seventh number
you see everything is negative x is
negative Y as I did within it so there
are different currents in each of the
quadrants sometimes all X files that are
positive sometimes all were negative
sometimes some one of them is positive
so we have a table quarters in corrent
one the eighth current we have discussed
now which three planes divide so in
column one all are positive in quadrant
two X is negative Y and R is positive in
Quadrant three x and y is negative that
is positive similarly we have various
values of various science of XY and Z in
all the coordinates when you are talking
about coordinates of a point in space we
take all X Y Z vector for example
there's a value here this is 1 this is 2
is is 3 just 3 and let's suppose this is
4 3 & 4 comma means here so this point
is nothing but X is 3 y is 4 and Y is Z
is 0 3 4 0 but now when you want to take
the Z component also here you can take
this point here and it opposes 5 so this
becomes 3 4 5 this is the point in a
space in a three dimensional space where
you have X vector as 3 this is 3 y as 4
this is 4 and zs y similarly here also
same thing in a different graph this is
x axis this is y axis is a texas so if
you are looking for a point P X Y Z you
take this X along x axis you take this
vile of Y axis in the you take 0
Medusa's what you get is P X Y Z you
repeat once again this is XYZ coordinate
if you want to plot P X Y Z point XYZ
you
first take X along x axis then Y along y
axis and then Z long that XS whatever
you get is the point XY Z we'll take
some example first is we have to find
the octane in which - 3 1 + 2 light so
for this let's refer to the graph we
have so here we define - 3 1 & 2 so if
you see - this is - this is positive
this is positive this if you see here
the first is negative x is negative Y is
positive and this is positive so you see
third quadrant second quadrant is the
one which satisfies this condition X is
negative Y is positive similarly 4 - 3 1
and mine - 3 1 and minus 2 this XYZ you
see X is negative Y is positive and Z is
negative so if you see this six quadrant
satisfies this so we can say that this
is in the six cordon thus we can say
that this value is in second quadrant
and this value is in the sixth column we
just look further table and found the
value let's take for example a point is
on the x axis what are the coordinates
of y&z so if the point is on the x axis
the y coordinate will be 0 in the X
square it will be 0 very simple draw if
you want this is X this is y it is the
position if the point is on x axis
example this is the point so here if you
see the X is equal to 4 let's suppose or
some X Y current is 0 in this and that
is 0 so any point in the x axis can be
denoted by x comma 0 comma 0 so you can
see that Y is 0 and X is dead is also 0
in this case because since this is in x
axis the z component is 0 since this is
an x axis the Y company is also 0 thank
you visit exam viacom to watch free
educational videos try free online tests
get the best quality study materials
study from the best tutors and mentors
and much more thanks again
3d geometry part 1 is brought you by
exam fear calm no more fear from exam
welcome to 3d in this video we will
study three-dimensional space
coordinates of a point in a space
distance between two points in 3d space
an order sectional formula in 3d space
so we will study three-dimensional space
coordinates of a point in 3d space
distance between two points in 3d space
and session of formula 3d space before
we study or before we go into 3d space
let's understand why do we need to
thirty three dimensional let's assume we
have this room and we have a ball this
ball moves in the room it bounces back
came back we threw the ball it it
bounced back from the wall and came back
now if you see this ball went through
various directions in the room first it
went straight
it took a left again it bounced back and
came so in this case there are three
vectors this ball can move in X
Direction y direction also a z direction
if you see you see the ball move in this
direction then this direction and then
killer session there are three
directions involved the movement of ball
in the room is three-dimensional so this
is one good example of application of
three dimension in the real world also
if you see this aeroplane it comes if
you here also you see there is an x
coordinate is a y coordinate there is a
z coordinates here also three dimensions
involved so these are two examples just
to show why do we need three dimensional
in most of the real-life scenario we do
need three dimension now we'll start
with the coordinates pain in three
dimension in three dimensional there are
three planes actually so if you see this
plane is one plane I'll say plane one
blue plane plane to his second plane and
plane red is third lane there are three
planes with three planes you get
three-dimensional space
also these three coordinate planes
divide the space into eight part and it
is called up ten did you see this part
is called part one correct this part is
called part two again this part
somewhere we have part three and this
part is part flow I'll write here to
make things we have one two three one
sorry this is one just two this is three
info so there are four four parts here
74 part below you can say 5 this is 6
this is some way here not hinted now he
didn't it is 7 and this is 8 there 8
part and they all equal parts they have
got octants so 3 dimensional space
consider three coordinate planes and all
these coordinate plane divide this into
a different part and this is what we
call three dimensional space in two
dimensions you have only one coordinate
one one space and here we have three
different planes if you see here they
have various values for example here if
you see if you take this as x axis this
is y and this is Z this is the positive
x axis again say 1 2 3 4 here it is
negative negative x thing is a - 1 - 2 -
3 - 4 - 5 similarly for y this is
positive positive 1 2 3 4 this is
negative similarly for Z we have some
positive values and for some negative
value thus you can see in one coordinate
for example you are talking about corden
one all x y and z XY and all are
positive but when you talk about current
- here you see z is negative Y is
positive
similarly this quadrant you see
z is negative y is negative Y is
positive only X X is negative only Y is
positive here similarly in this quadrant
II you see this quadrant everything is
negative x is negative sorry not this
the other one the one the seventh number
you see everything is negative x is
negative Y as I did within it so there
are different currents in each of the
quadrants sometimes all X files that are
positive sometimes all were negative
sometimes some one of them is positive
so we have a table quarters in corrent
one the eighth current we have discussed
now which three planes divide so in
column one all are positive in quadrant
two X is negative Y and R is positive in
Quadrant three x and y is negative that
is positive similarly we have various
values of various science of XY and Z in
all the coordinates when you are talking
about coordinates of a point in space we
take all X Y Z vector for example
there's a value here this is 1 this is 2
is is 3 just 3 and let's suppose this is
4 3 & 4 comma means here so this point
is nothing but X is 3 y is 4 and Y is Z
is 0 3 4 0 but now when you want to take
the Z component also here you can take
this point here and it opposes 5 so this
becomes 3 4 5 this is the point in a
space in a three dimensional space where
you have X vector as 3 this is 3 y as 4
this is 4 and zs y similarly here also
same thing in a different graph this is
x axis this is y axis is a texas so if
you are looking for a point P X Y Z you
take this X along x axis you take this
vile of Y axis in the you take 0
Medusa's what you get is P X Y Z you
repeat once again this is XYZ coordinate
if you want to plot P X Y Z point XYZ
you
first take X along x axis then Y along y
axis and then Z long that XS whatever
you get is the point XY Z we'll take
some example first is we have to find
the octane in which - 3 1 + 2 light so
for this let's refer to the graph we
have so here we define - 3 1 & 2 so if
you see - this is - this is positive
this is positive this if you see here
the first is negative x is negative Y is
positive and this is positive so you see
third quadrant second quadrant is the
one which satisfies this condition X is
negative Y is positive similarly 4 - 3 1
and mine - 3 1 and minus 2 this XYZ you
see X is negative Y is positive and Z is
negative so if you see this six quadrant
satisfies this so we can say that this
is in the six cordon thus we can say
that this value is in second quadrant
and this value is in the sixth column we
just look further table and found the
value let's take for example a point is
on the x axis what are the coordinates
of y&z so if the point is on the x axis
the y coordinate will be 0 in the X
square it will be 0 very simple draw if
you want this is X this is y it is the
position if the point is on x axis
example this is the point so here if you
see the X is equal to 4 let's suppose or
some X Y current is 0 in this and that
is 0 so any point in the x axis can be
denoted by x comma 0 comma 0 so you can
see that Y is 0 and X is dead is also 0
in this case because since this is in x
axis the z component is 0 since this is
an x axis the Y company is also 0 thank
you visit exam viacom to watch free
educational videos try free online tests
get the best quality study materials
study from the best tutors and mentors
and much more thanks again
About this Video
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Apr 18, 2026 Last updated
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