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The Ultimate Beginner's Guide to 3D Printing - Part 1



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hey what's up guys it's Jack you're

three think tech and this video I'm

going to show you guys how the 3d

printer works what the parts are how to

3d print from start to finish and

basically just an introduction to 3d

printing video for beginners or people

who want to learn so let's get right

into it so what can be 3d printed

basically anything you want basically

any solid object you can print out like

feature in the screen you can see

sunglasses a screw a milk jug a boat

propeller pretty much any solid object

you can print out which is awesome so

you guys might know of some famous 3d

printers like MakerBot or Ultimaker and

these lasers and these printers are

expensive but they're really high

quality and they both are good for

beginners but they're probably too

expensive for people to start out with

so I'm going to show you some different

options you can use that might be a

little bit less known but still get the

job done so 3d printing process so this

is the core of all 3d printing everybody

follows this procedure in order to 3d

print so we always start out with a 3d

CAD model a three-dimensional model on

the computer of the object you want to

print and from there we export that

model as a dot STL file share

lithography file and from there we can

import that STL file into our slicing

software so we've got two different

slicing software's later in this

presentation and from there the slicing

software we can edit the layers the tool

path and the temperature and the color

and how fast you want to print basically

just edits what the printer is going to

do and from there we send that code that

the slicer makes in a dot g-code file

off to the 3d printer click print the

printer makes to our object that we made

in the CAD model or download it online

and create a three-dimensional object so

how do 3d printers work there's two main

types of 3d

printing there is FDM which is the most

popular one fuel deposition modeling and

SLI with this stereo lithography so FDM

printers the most popular because it's

an additive process it's not that messy

it's not that hard to use and uses

filament which is pretty cheap so this

prints at about a hundred to 20 micron

layer thickness that's the lowest that

most printers can go which is really

really thin you're getting it nice and

smooth prints with FTM and like I said

FDM is an additive process so it uses a

spool of filament plastic and it

extrudes that through a hot nozzle at

195 degrees Celsius or around that

temperature and it extrudes it through a

cone-shaped metal piece called the hot

end and extrude that out into a really

really small thin strand and the printer

move it around in three dimensional XY

and z planes and squishes those layers

on the bed on top of each other as you

can see here that's the most common type

of 3d printing the next type is SLI

printing which the layers aren't as thin

but you're still gonna get amazing print

quality because of less moving parts

than FDM printers so as you can see here

SLI printing use a projector or a laser

to hardened resin as a boat platform

moves up so in sli your print prints

upside down actually so it depends on

what you want to print SLA is also more

expensive STM is cheaper so that's why

most people go with FDM printers so

different filament types most people

print in PLL because it's less toxic it

is either print and it's more color

options but there's also abs which is

what they make Legos out if it's a

harder tougher plastic which is also

harder to print there's nylon filament

there's carbon fiber there's TP which is

flexible

there's wood metal and dark PVA always

materials can be printed from a 3d

printer so wood filament

glow-in-the-dark come from PLA - which

is cool so if your printer can print PLA

most likely can print wood or

glow-in-the-dark

so types of 3d printers these are the

basic types of low-cost consumer grade

3d printers there's a RepRap printer on

the left here as you can see if it's an

additive process that big metal part in

the middle is the extruder and the blue

tape is the bed the side printer has a

big bed size of about eight by eight by

nine inches that's the average size of

the RepRap printer in the middle here we

have a delta printer which is still FDM

but it uses three motors and three

carriages to move the nozzle around and

up and down on a circular bed so that

bad is usually a little bit smaller than

a RepRap printer it's about six inches

in diameter on the far right we have an

SLA printer these are more expensive but

the quality is a lot better but they

don't have as many materials as FDM

printers so CAD computer-aided design

software so there's two ways you can

find models you can either make it and a

CAD software or download it online which

I'll get to later so my favorite CAD

software and most popular ones in a 3d

printing industry are Google Sketchup in

artists using 360 these are really easy

software's you can export that STL file

to send to your slicer software and

they're really easy for beginners you

learn there lots of tutorials online

they're all around great CAD software so

I really recommend them so here we go

how to find models online this is what a

lot of people do for just a quick model

there's Thingiverse which is the most

popular one and my mini factory comm

then most people will use these to just

find quick models they can download them

directly as an STL file send them to

that slicer software and print any

object you would like no Thingiverse and

my mini fast we have almost any object

you can think of so I'll definitely

recommend going there first instead of

making your own in your CAD software now

slicing software so the many different

slicing software is and I just listed

three heroes - the most common ones so

maker we're workers called MakerBot

desktop now is the slicer software for

MakerBot printer I'd like to show

in the beginning Kira is four ulti

makers like I said that's beginning to

and simplify 3d is what most people use

for RepRap printers print printers they

build Delta printers things like that

but cure and simplify 3d both export as

the g-code which most three friend

reviews MakerBot and make it where

export as a dot MakerBot file which only

MakerBot's can use so file types and

slicing types so as I said you're going

to import your STL file into your slicer

software and your slicing software is

going to export it as a dot G code which

we will erect into the printer

but MakerBot use a dot MakerBot file

type but they're both basically the same

they're ones and zeros binary that tells

the printhead exactly where to go so it

says go 20 spaces this way 4 spaces that

way down 10 spaces pretty much just like

that extruders so there's single and

dual extruders on printers sometimes

there's more than two but mostly one or

two print heads or extruders so extruder

is like these are only on SDM prankish

because they're additive process and

extrude the filament out of the nozzle

so similar series can only print in one

material type but dual can print in two

material types as you can see on the

right so the dual one has two tips and

here as example can print black and

white at the same time so your model can

have two colors which is pretty cool so

bed types heated beds so most 3d

printers should have heated beds which

helps the material stick to them better

won't pop off in the middle of the print

so there's glass beds and painters tape

beds glass beds have a nicer bottom

surface but painters tape beds are

usually able to stick the print down

easier and you can replace the painters

tape if some comes off while the class

size if you scratch the glass you can't

really take it off and replace it the

class beds if you scrape the class

you're gonna have to buy a new one which

gets pricey after a while

infill is how much plastic is inside of

your model

so I recommend anywhere from 10 to 35

percent infill but you can go up to 100

or down to zero zero will have nothing

inside of your print and 100 will have

tomorrow can be pretty much solid so

perimeter layers one to two is how many

times your theater goes around the

perimeter of the object so one layer is

going to be going around once two is

going around twice and bottom layers are

how many layers of solid material print

at the bottom of your object so I

recommend about two to four bottom

layers which works best bridging and

overhang so on the left you can see that

the printer is trying to print a 90

degree angle which is impossible but

they can't extrude in midair and stick

to air that's not possible so horizontal

overhangs are like these but most

printers can print about 45 degrees and

over that it will start to overhang and

your print will look like this so you

should use support to fix this issue on

the right you can see the Christmas

trees have a big 90 degree overhang but

this Center one has support which is a

grid-like material that you slice your

software adds to your model so don't

already ask the print it's finished you

can just pick that stuff away it'll come

off nice and clean and your object will

look just like you made it in the CAD

software or download it online so object

orientation and your selector software

is very important so on the left you see

bad orientation that the red of the

object and the blue is the support and

it's not going to print properly because

you're using a lot a lot a lot of

support and you want to use as less

support as possible it helps it print

faster and the surface will be a lot

nicer on the right you can see it's good

orientation because there's a lot let's

blue a lot less support on your model it

will print faster too so use the least

amount support and overhangs as possible

I think about strength as you print your

object so as you can see 3d printing is

an awesome technology that's my video on

the introduction to 3d printing I want

to know what you guys are going to print

what you want to pray

but you have printed what you learn from

3d printing comment down below I'll make

sure to write back to you please

subscribe to my channels for more videos

like this I hope you learned something

and I'll see you guys in the next video

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