The document introduces 3D printing and provides information about learning the process. It discusses Shawn and Steph Grimes who run workshops at the Digital Harbor Foundation center. They describe what 3D printing is, the basic process, potential applications, benefits and limitations. Examples of 3D printing uses in various fields like fashion, architecture, medicine and tools are shown. Different printer types, materials, software and where to access designs are outlined. Resources for learning more are provided at the end.

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Learn to 3D Print Right
Now!
Shawn & Steph Grimes

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Who Are We?
Shawn Grimes Steph Grimes
Technologist
App Developer
Director of Technology
Maker
@shawng
Former Teacher
App Designer
Director of Curriculum
Maker
@createdbysteph

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Digital Harbor Foundation
• Tech Center
• Curriculum
• Community
• Center of
Excellence

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Tech Center
After-School & Summer Maker Programs for Youth

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What is 3D Printing?
• Additive manufacturing
• Material is placed, over time, one layer
at a time
• A common first material is plastic
• “A hot glue gun controlled by a robot
arm”

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What is 3D Printing?
Three Steps
1. Design your 3D Model (TinkerCad)
2. Slice the model into layers
(MatterControl)
3. Print (Printrbot Metal Simple)

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What can it do?
• Customized/personalized objects
• Prototypes
• Individualized printing/Print on demand

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3D Printing is NOT…
• The new mass manufacturing
• It is not cost effective in terms of time
or material costs
• The right tool for every job

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3D Printing Benefits
• Prototyping
• Gives your physical creations an “undo”
button
• Personalized, Customized, “one off”
manufacturing
• Print On Demand
• 3D Designs are cheaper to store than
physical inventory

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3D Printing in Society -
Fashion

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3D Printing in Society -
Architecture

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3D Printing in Society -
Medical

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3D Printing in Society -
Tools

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3D Printing Real World
Uses

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3D Printing in Society -
Future
• Space
• Replacement Parts
• 3D Scanning
• Bio printing

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3D Printing in the
Classroom
• Cultural replicas
• Game Pieces
• Something that makes music
• Create characters for a stop-
motion video.
• Design a model of your
house, classroom, school, or
local building.
• Phone case
• Make a missing piece for a
building set (LEGO, K’Nex,
etc.)
• Make items that show use of
ratio, measurement, scaling,
or geometry. You can also
make small things bigger, like
bacteria.
• Build an amusement park,
zoo, aquarium, or wild animal
park.

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Tools of the Trade
• 3D Printer
• Software
• Additional Hardware

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Types of 3D Printers
• Starting at $349 (kit)
• Ready to print $599
• More expensive does NOT equal better quality
• Other options:
• Dual Extruders (multiple colors/materials)
• Heated beds (new materials)
• Powder based

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The Materials
• Polylactic acid (PLA)
• Derived from corn starch or sugar
• Cradle-to-cradle recycling
• Decomposes into water and carbon
dioxide in 47 to 90 days (in the right
compostable conditions)

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The Materials
• Acrylonitrile butadiene styrene (ABS)
• Legos!
• Higher heat than PLA
• Really need a heated bed to work
with
• Strong but not flexible (cracks,
doesn’t bend)

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The Materials
• Flexible Filaments
• Rubber like
• Can be challenging to work with
• New ones coming out all the time:
• Thermoplastics
• Wood-like plastics
• Nylon
• Metal Infused

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Software Options
• Cookie Caster
• Free, 2D drawing turned into 3D Cookie Cutters
• Tinkercad
• Free, web based, good for ages 6-99
• 123D Design
• Free
• OpenScad
• Free - programming based
• Minecraft
• Rhino, AutoCAD

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Design Resources
• Thingiverse.com
• 3D Design Library and community
• Repables
• 3D Design Library
• yeggi.com
• Search engine for 3D Design tools

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What if I don’t have a
printer?
• Shapeways
• Print on demand 3D printer service
• Multi-color, lots of materials (including
metal)
• www.3dhubs.com
• Find a local printer

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Learning Resources
• Printrbot Learn
• http://learn.printrbot.com
• Shawn’s Resources:
• http://bit.ly/learn3dprinting
• 3D Printing Workshop for Educators
• www.digitalharbor.org

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Made by Youth

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Printrbot
• What is Printrbot?
• Why we like it
• How you can get one
• What can you do with it

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Give Away

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Resources
Steph Grimes
steph@digitalharbor.org
@createdbysteph
Shawn Grimes
shawn@digitalharbor.org
@shawng
www.digitalharbor.org @DHFBaltimore
Contact Us
http://bit.ly/learn3dprinting