Learn CAD in 10 Min : Turn Your Ideas into Reality

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3d printing is the future in the future

is now in this video I'll show you I can

transform an idea inside your head into

a physical object that you can use by

showing you the basics of cat or

computer-aided design in about 10

minutes let's get started


even if you are into the fpv drone

racing the skill of cat and 3d printing

is useful for everyday life we use CAD

to solve everyday problems we have at

home camera won't fit your tripod make

an adapter that slippery chair legs

prism grip for your chair got some sharp

corners on your shower design a corner

protector have an idea for your own

frame just design your own frames the

possibilities are endless

boiled down to this essence CAD or

computer aided design is just adding or

subtracting or in cat terms extruding

and cutting material away first there

are three things you need to turn your

ideas into physical objects you can use

digital calipers for getting

measurements CAD software to design your

idea and a 3d printer or a way to turn

your designs into a physical object if

you're just starting out there's lots of

free CAD software you can use online

sketchup is a simple online CAD program

that's pretty basic and it will let you

export files that can be used by a 3d

printer then there's fusion 360 if

you're a student or teacher you can sign

up to use it for free fusion 360 is

loaded with features and even has cam or

computer-aided manufacturing software to

operate a CNC machine if you're a total

beginner I would recommend Sketchup it's

online and it's free fusion 360 is crazy

powerful so it can be a little bit

intimidating once you have your design a

3d printer will turn your ideas into a

physical item I won't get too deep into

3d printers in this video but you can

get a decent printer for under 200 bucks

and there's even companies online that

will print items for you if you're not

sure if you want to get a 3d printer yet

once you have an idea of what you want

to make you can start by planning on how

to translate the idea in CAD so that it

can be turned into a physical object by

3d printing here are a couple tips tip

number one start with something easy

since this is a basic intro into cat and

3d printing your design should have one

flat side the reason for this is 3d

printing worked by printing or using a

melted filament or plastic layer by

layer until you have a physical item

the model doesn't have a flat side to

start with the print and make printing

that object much harder without a flat

side you may have issues with the model

sticking to the print bed tip number two

use metric measurements there's maybe a

personal preference but I like to use

millimeter measurements rather than

inches it's so much easier to say for

example 10 millimeters rather than 0.3

nine three seven zero zero seven nine

inches let's get started since this is

an intro into CAD to Tory I'll just show

you a simple overview of the basics of

cat' after this video you should be able

to design very basic items once you

learn the basic you'll learn more

advanced aspects as you use CAD more and

more I learned CAD in SolidWorks so

that's what I'll be showing you but the

principles of CAD are all the same in

all the CAD software in this tutorial

I'll show you how to design this to turn

this into this this is just a simple

gadget that squeezes the toothpaste from

the back of the tube to the front of the

tube so you can squeeze from the center

of the toothpaste tube every time it's a

very simple design and it's easier to

design and cat and easier to print when

you do a 3d design of physical objects

you have to think in three dimensions on

the XY and z axis normally the x and y

axis would be the width and height and

then the z axis is the depth a drawing

on a piece of paper would be a 2d or

two-dimensional drawing you have the X

which is left and right and then the Y

which is up and down this is a flat

drawing to make it 3d you add the z-axis

which adds height to the drawing so the

first thing you do before you start any

drawing is to make sure you have the

correct measurements of what you want to

use right here I'm using millimeters if

you want to use inch select inch so let

me use millimeters these are the two

main tools that you'll be using in CAD

sketches which are drawings and features

are the extrude or add and cut which is

subtract like I said earlier CAD is

basically just adding or subtracting

materials just sketch extruder cut

sketch extruder cut sketch or extruder

cut until your model is done it's really

that simple

so in CAD these through your axis

represent planes or sides that you can

start your sketches on I usually start

with the top

plain because it's easiest to visualize

so to start your sketch just go ahead

and select your top plane and then go up

here and then create sketch and then

when you're in the sketch you have all

these tools that you can use to make

your drawing you got a lines you got

squares get slot circles arcs all these

other different tools you can play with

so for our example we'll just use the

rectangle tool and then start from the

origin and then just draw out a

rectangle it doesn't matter that the

size right now so once you've got the

rectangle drawn you're going to go up

here and select dimensions and then just

gonna give this rectangle dimensions so

for our wrecked it for our toothpaste

squeezer we're just gonna give it a

width of 70 millimeters and then a

height of let's see 30 millimeters

whoops and then once you have your basic

drawing you can close out the dimensions

and then once you have a 2d drawing you

can see this is just a flat drawing

you're going to go up to features and

then you're gonna extrude so this is

adding material so just hit extrude and

then from extrude over here you got the

different parameters you can start

wherever you want to start the extrude

for this one I'm just gonna start from

the plane and then here are different

more parameters of how much you want to

extrude so blind is just a set

measurement of how much you want to

extrude so I'm just gonna say 7

millimeters and then hit enter so from

our flat drawing over there we extruded

the drawing by by adding 7 millimeters

of material so next we'll make the slot

that the toothpaste will get squeezed

through now instead of using the the

front right and top plane we have a

basic cube that we can pick any of these

surfaces to start the sketch so on this

one we're just going to pick the top

surface and then go up here and hit

sketch again and then when you hit this

normal to it'll make the the model

flatten out to where you're just looking

at that one side and then we're just

gonna draw a rectangle that we're gonna

cut out so right here

we'll just draw a random rectangle and

then in CAD there are many ways to

Center a drawing this is the one I like

to use if you pick this little

centerline thing this is like a

construction line this doesn't draw

anything it's just kind of like for your

own measurements so I'm just gonna pick

this and then you hover this it'll show

you the center of the line so just click

that and then once you select this line

you can do different parameters so I'm

gonna just make this horizontal and this

this means this horizontal line will

always Center this line with this line

and then I'm just gonna do another one

for the side so there's a center here

and then hover here and you'll see a

little thing you pop up click that and

then select the line again and then

click horizontal so this these two lines

a vertical line and a horizontal line

will make sure that this square or this

rectangle is always Center with this

shape so once you have that just go

ahead and hit dimensions and then you're

just gonna give this a dimension we'll

just say it is 65 millimeters wide and

then we'll give it a depth of say 1.5 so

now once you have the sketch drawn you

can go up over to features and now

instead of extruding we're gonna cut so

cutting is just basically cutting away

material so on this one I want the

little slot to go all the way through so

here I'm just gonna go through all if

you hit through all this little sketch

will cut through any part of your model

so let's go here now you can see we have

a basic little slot in art or drawing so

drawing in CAD is kind of like sculpting

clay start with a really crude

functional drawings like what we have

here then you just start adding details

until you have a refine model so

essentially this is a working model of

the toothpaste squeezer we have a slot

right here that the end of the

toothpaste will be inserted and squeeze

the toothpaste out but we aren't done

now we add the small details that that

improve the functionality and appearance

first we'll just add a slight curve to


ends of the toothpaste squeezer to make

it a little bit easier to draw so once

again I'm just gonna select this top

face and then go to the sketch create

sketch and then hit normal to so it's

easier to draw so for this one I'm gonna

draw a center line in this model and

I'll show you why later draw a center

line and then when I do the drawing I'm

gonna pick this little squiggly line so

this one you can kind of you can tweak

the line however you want so I'm just

gonna do something like that like that

and then I'm going to draw another line

right here to the center and then from

here I'll click mirror entities so if

you mirror entity it's this will you

select what you want to copy and then

you mirror hit the center line and then

whatever is on this side of the of the

line will be copied over to this side

select so that's one part of our grip

thingy and then the other half I'll just

draw a simple line over here and then go

draw a little arc just to give it a

little bit of a curve all right so we

have our drawing on the top and bottom

now we can go to features and go extrude

cut and then I'm gonna cut away this

part of the drawing so I'm gonna go

through all select now we just gave our

little toothpaste squeezer a little bit

of a grip for your fingers next since

this little slot is kind of crude we're

just gonna make it a little bit easier

for the toothpaste to be fed through so

for that we're just going to use a

chamfer tool the chamfer tool cuts edges

to whatever specifications you give it

so we're just going to give it a

distance of just say five millimeters

and then we'll keep the 45 degree so

when I hit this little edge right here

it's gonna cut five millimeters at 45

degrees you can kind of see there hit

enter now you see we have a little slot

that the toothpaste will be easier to

feed through now last is my favorite

tool you're gonna use the fillet tool

the fillet tool just rounds out edges

and just makes things look more pretty

we'll just give it a parameter of two

millimeters and then we're just gonna

start rounding out all these little

edges to make it a little bit more round

will do this edge this edge and we'll

give this edge and this edge a little

bit of a roundness to don't you hit that

now you can see it looks much prettier

than that blocky thing we have at this

point we're pretty much done with the

design of our toothpaste squeezer so

when you're done with the design you

just go up here and you save this model

as a STL so we're just gonna bring it

over here and then call it toothpaste


and then you want to make sure you save

this as an STL file because the STL file

is the file that's used for 3d printing

so once you have your STL file now you

can put the file into a slicer the

slicer is basically a program that tells

the 3d printer how to print this file so

you just want to make sure that your

file your flat side of your file is

facing down so we're gonna rotate it and

then from there you're ready to start

your print hit print and print I know

this is a ridiculously short tutorial

but it should demystify cat enough for

you to get in there and start designing

basic items once you learn the basics

you can go on and learn the more

advanced aspects and learn to design

more advanced items 3d printing is a

whole other topic that needs his own

video so I hope you found this video

helpful and if you want to see a video

on 3d printing let me know in the

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already thanks for watching