Introduction to 3D Printing

Introduction to 3D Printing
Brian Zelip
Emerging Technologies Librarian
[email protected]
1
What’s your interest in
3D printing?
2
What We Will Cover Today
1.
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4.
5.
How 3D printing works
3D printing in the health sciences
Where to find 3D model files online.
The geometry of 3D models
3D printers available at our Innovation Space.
See a detailed how-to-guide at
http://guides.hshsl.umaryland.edu/ispace
3
General Points About 3D Printing
• “Additive manufacturing” is different from
conventional manufacturing.
• The process starts with a 3D model.
• The object is printed layer by layer.
• Printing materials include plastics, metals, bio matter,
and more.
• There are multiple printing methods.
• Consumer printers differ from industrial printers, but
the process is similar.
4
Preparing the Model for 3D Printing
• The original 3D model gets “sliced” into many tiny
layers (< 1mm) by “slicing” software.
• The “slicing” software can also add support
structures to the model for printing difficult
angles (> 45o).
• Printing with supports increases material use and
printing time.
• Supports need to be carefully removed when
printing is complete.
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A Model in a Design Program
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A Model in a Slicing Program
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A Preview of Layer 0
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A Preview of Layer 50
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A Preview of Layer 100
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A Preview of Layer 150
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A Preview of Layer 250
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A Preview of Layer 300
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A Preview of Layer 350
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A Preview of Layer 400
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A Preview of the Final Layer (444)
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Important Components of a 3D Printer
X Axis
Z Axis
Y Axis
Extruder
Bed
Printing
Material
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Consumer 3D Printing in Action
https://www.youtube.com/watch?v=-gaC5BpXljU
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Scientific 3D Printing in Action
https://youtu.be/9VHFlwJQIkE?t=41s
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Industrial 3D Printing in Action
https://youtu.be/uMMwtQts7pc?t=22s
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Common uses of 3D Printing
across the Health Sciences
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•
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•
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Anatomical objects
Prosthetic limbs
Medical & clinical devices
Custom lab equipment
Bio matter - cells/tissue/organs, food, drugs
21
http://stocks.moneysh
ow.com/intershow.mo
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7146844/baltimore_st
artup%E2%80%99s_kic
kstarter_raises_$7000
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22
http://www.huffingtonpost.com/2013/11/04/dad-prints-prosthetichand-leon-mccarthy_n_4214217.html
23
http://www.notimpossiblenow.com/labs/project-daniel
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Source: http://3dprintingindustry.com/2015/08/19/5-year-old-throws-orioles-opening-pitchwith-3d-printed-prosthetic-hand
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Source: http://qz.com/471030/the-fda-has-approved-the-first-drug-made-by-a-3d-printer/
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Source: http://www.designboom.com/technology/3d-printed-organs-from-regenerative-livingcells/
28
source: http://www.appropedia.org/Open_source_optics
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3D Printing Going Mainstream
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•
•
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Broadly adopted in health sciences and beyond
Commercially available desktop printers
Global & local “maker space” movement
UMB’s Innovation Space has 3D printers and
scanners
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3D Model Examples
http://www.thingiverse.com/thing:460437
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Finding .STL 3D Model Files
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NIH 3D Print Exchange
Thingiverse
Instructables
3D Warehouse
GrabCAD
Ponoko
Nervous System
Not all 3D model files found here are 3D printable!
More information at
http://guides.hshsl.umaryland.edu/c.php?g=163717&p=1
075331
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http://www.thingiverse.com/
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NIH 3D Print Exchange
http://3dprint.nih.gov/
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Diabetic Foot
http://3dprint.nih.gov/discover/3dpx-001560
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Neuron
http://3dprint.nih.gov/discover/3dpx/000912/x3d
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Triangles in a Mesh
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3D Mesh Modeling
• A mesh is a collection of vertices, edges, and
faces that describe the shape of a 3D object.
– A vertex is a single point.
– An edge is a straight line segment connecting two
vertices.
– A face is a flat surface enclosed by edges. (Some other
applications call these "polygons")
• Source:
http://en.wikibooks.org/wiki/Blender_3D:_Noob
_to_Pro/What_is_a_Mesh%3F
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Meshes That Cannot Be 3D-Printed
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Check if the File Can be 3D Printed
• Correct Non-Manifold Geometry Issues
• Is your 3D model solid/watertight and has the valid 3D
geometry?
– This means that all faces are closed and they form one or
more closed entity.
– There must be no open gaps/holes, non-manifold edges,
self-intersections, zero-length edges, naked edges,
degenerate faces, duplicate faces, or inverted triangles.
– Upload and repair your file through the free NetFabb
Cloud Service - https://netfabb.azurewebsites.net/
– Download the repaired version.
– (Optionally, you may use other software to do the repair.)
40
http://www.hshsl.umaryland.edu/services/ispace/
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What You Can Use
at the Innovation Space
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What You Can Use
at the Innovation Space
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What You Can Use
at the Innovation Space
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Live 3D Print Web Cam - bit.ly/hshsl3D
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How to Operate Our 3D Printers
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Taz 5
• Detailed instruction here:
http://guides.hshsl.umaryland.edu/ispace/taz5
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Replicator 2X
• Detailed instruction here:
http://guides.hshsl.umaryland.edu/c.php?g=1
63717&p=1598497
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Afinia H480
• Detailed instruction here:
http://guides.hshsl.umaryland.edu/c.php?g=1
63717&p=1598500
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3D Printing Process Checklist
• http://guides.hshsl.umaryland.edu/c.php?g=1
63717&p=1075333
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Next Steps
• Let’s go up to the HS/HSL Innovation Space to
take a look at the 3D printers!
• All questions are welcome.
• After the workshop,
– Check the Innovation Space Guide!
– http://guides.hshsl.umaryland.edu/c.php?g=1637
17&p=1075336
– Make a reservation for the Innovation Space.
– Take the orientation & 3D Print and Scan!
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After this workshop,
• Make a reservation for orientation/use!
http://cal.hshsl.umaryland.edu/booking/ispace.
• Learn how to 3D model, scan, print.
• Prototype, create, collaborate!
52
Contact Us!
• E-mail [email protected]
• HS/HSL Innovation Space:
http://www.hshsl.umaryland.edu/services/isp
ace/
• 3D Printing/3D Scanning How-To Guide
http://guides.hshsl.umaryland.edu/ispace
53
Works used and referenced
Cover image,
https://www.google.com/search?tbm=isch&q=lulzbot&tbs=imgo:1#tbs=imgo
:1&tbm=isch&q=inside+lulzbot&imgrc=Jh3kLn1yZyrZaM%3A
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