3D Printing in the Classroom

Keven RinamanDirector of TechnologyCalvert Catholic Schools

www.teacherstechtoolbox.com

http://bit.ly/OETC3D

About MeYears in Education - 9

Positions held: Teacher, Coach, Advisor, Administrator

Website: www.teacherstechtoolbox.com

Contact Me:

Twitter: @kevenrinaman

Email: krinaman@calvertcatholic.org

Certifications

OutlineIntroduction:

Vocabulary of a 3D Printer

Is it just a passing fad?

Presentation:

Hands-on - Speedy Architect

Getting Started (early projects)

Solve a problem - Challenging students to solve problems

Thingiverse/Lesson Plans

Closing:

Question & Answer

Resources

VOCABULARY!

Vocabulary

3D Printer Parts

Filament - Substance on a spool in which creations are made from

3D Printer PartsBuild Plate - The surface in which the print is created. Some printers have heated build plates, others use blue tape, and some have specialized grip surfaces

3D Printer Parts

Extruder:

Piece that heats up the filament and places it on the build plate

Terms for Printing

Terms for Printing

Raft - A small piece of plastic laid down before the print. This gives better adherence to the build plate, and makes it easier to remove the print upon completion.

Terms for PrintingSupports - Small pieces built up to support prints that have overhangs. Increases the quality of these types of prints.

Terms for Printing

Example of supports

Terms for Printing

Infill Percentage

Infill is the support structure inside your object.

Higher percentage will make your print denser, while a 0% will be hollow

Source: https://www.makerbot.com/learn/

Terms for Printing

Number of Shells

Shells are the outer layers that make up the surface of your prints. Adding more shells does not affect its external dimensions, but can make your object stronger.

Source: https://www.makerbot.com/learn/

Terms for PrintingLayer Height & Print Resolution

Layer Height, also known as Print Resolution, changes the surface quality of a 3D print.

Lower Resolution = thicker layers, faster print, rough surface

Higher Resolution = thin layers, longer print time, smooth surface

Source: https://www.makerbot.com/learn/

Terms for PrintingSlicing: A slicer is the software package used to divide a 3D model into flat layers, which are then printed one at a time. The output of a slicer is G-code that controls the path, speed, and temperature of the printer.

Source: http://hotmess3d.com/about-3d-printing

PLA vs ABSThese are the two main types of filament used in FDM

PLA - Polylactic Acid ABS - Acrylonitrile-Butadiene Styrene

Passing Fad?

Passing Fad?3D Printing has been around since the mid 1980’s and is also known as Additive Manufacturing. Printers keep becoming more affordable and many are available for the average consumer. There are a few different types of additive manufacturing.

SLA

Stereolithography

Printing using from liquid resin with a light source to

solidify the material

SLS

Selective Laser Sintering

Printing using a laser to melt and solidify layers of

powdered material

FDM

Fused Deposition Modeling

Printing using a string of solid material (filament)

SLA

Stereolithography

Super smooth finish, requires post processing.

SLS

Selective Laser Sintering

Big variety of materials, great resolution, very

expensive.

FDM

Fused Deposition Modeling

Medium print quality, but inexpensive and no post

processing.

Passing Fad?

3D Printing has been growing over the years and and in very recent history, sales have grown exponentially.

Source: https://www.3dhubs.com/what-is-3d-printing#a-brief-history-of-3d-printing

LET’S Get Hands On! Speedy Architect

Project Pack:

Straws

Connector Pack

MakerFaire Robot

10 minutes

Goal: Build a structure for your robot to sit on

NO WRONG ANSWERS!

Let creativity guide you!

Grade 6 Science Class

Grade 6 Science Class

http://www.youtube.com/watch?v=rCRzqHD52Mo

TinkerCAD

Tutorial from Drew Lentz at MakerBot: http://bit.ly/LentzTinker

Solve a problemExamples:

Bushing

R/C Airplane Engine Mount

Lego Pieces

Some of the most productive projects we have had students complete have been to solve a problem at the school.

Thingiverse and Lesson Plans

http://www.thingiverse.com/education

Thingiverse and Lesson Plans

http://www.thingiverse.com/thing:1682347

Assign Small Groups

20 minutes to create structure

Demonstrate Structure

Discuss what would have been better

Teach TinkerCAD

Groups Design Parts

Print Parts and Build

Thingiverse and Lesson Plans

http://www.thingiverse.com/thing:1699935

Counted the number of each letter used in class

Printed the necessary number of each

Put letters on table, instruct students to spell their names

Put all names on tables, have class identify everyone’s names

Thingiverse and Lesson Plans

http://www.thingiverse.com/thing:1344108

Students discuss historical figures that would deserve to be on Mt. Rushmore

Use Sculptris to create a new face

Add face to Mt. Rushmore model in TinkerCAD

Print using MakerBot Print

Thingiverse and Lesson PlansGrade 8 students are going to Washington D.C.

Have them research the monuments they will be visiting

Build Monument in TinkerCAD

Print using MakerBot Print

Have students take print with them on trip, take picture in front of actual monument with their creation.

Question and Answer Session

ResourcesHow does 3D printing work? (3D Hubs)

Learn the Basics of 3D Printing (MakerBot)

Vocabulary

MakerBot Educators Program

http://bit.ly/OETC3D