3D printing Adventures with Mathematica

andOpenScad

Knarik Tunyan

Assistant Professor

ICTCM 2020

3D printing stages

1. Idea

2. Software design

3. STL file

4. Slicing

5. Printing

6. Final product

Blender, TinkerCad, OpenScad, MathematicaMatLab, and many others

STereoLithographyStandard Triangle/Tesselation Language

Density of layers,adding constructional support

Actual printing

Educational, useful, or just for fun

Removing support, polishing final object

1. Idea

https://simple.wikipedia.org/wiki/Pac-Man

resource: https://www.thingiverse.com/thing:404028

resource: https://longliveyoursmile.com/3d-printable-mask-for-covid-19/

https://simple.wikipedia.org/wiki/Pac-Manhttps://www.thingiverse.com/thing:404028https://longliveyoursmile.com/3d-printable-mask-for-covid-19/

2. Software design

Mathematica OpenScad

MatLab

3. STL fileSTereoLithography

Standard/Surface Triangle/Tesselation Language

A vase created in Mathematicaby Eric Greenberg

the corresponding stl file

3. STL fileviewstl.com

4. SlicingUltimaker Cura

5. Printing

6. Final product

=

6. Final product

+

will turn into

Sometimes things can go wrong

Overlapped facesThin surface

Design errorExtra parts

Small area

vs.

OpenScadwww.openscad.org

- Used to create 3D models- Available for Linux/Unix, MS Windows, Mac OS X - Free under the General Public License version 2

http://www.openscad.org

OpenScad: 3D Basic Shapes

cube(10); cylinder(r1=8,r2=8,h=4);

sphere(r=10);

cube(10); color("red")cube([50,100,30]);

length=50;width=100;height=30;color([0,1,0])cube([length,width,height], center=true) ;

OpenScad: More Basic Shapes and More Colors

sphere(100);

$fn=10; $fn=70;$fn=30;

cylinder(h=10, r1=20, r2=20); cylinder(h=10, r1=20, r2=15);

Example with Rotations

Example with Translations

Christmas Tree in OpenScad by Juan Gomez

1. 2.

3. 4.

OpenScad Cheetsheetwww.openscad.org/cheatsheet

Wolfram Mathematicawww.wolfram.com/mathematica

- Sophisticated computing- Available for Linux/Unix, MS Windows, Mac OS X

http://www.wolfram.com/mathematica

Student projects with Mathematica

A Vase in Mathematica, by Eric Greenberg

1.

2.

3.

4.

Student projects with OpenScad

Satellite dishAlben Kalambukadu

Gramophone Bobby Woody

Pac-ManSharon Levin

CrownAvery Piper

Castle in the SkyVictoria Silva

BridgeNicholas Roberts

Christmas TreeJuan Gomez

SkyscrapersStanimir Stoychev

Student projects with Mathematica

PropellerYuta Sakai

CuboidsEstefania Serrano and

Amanda Tsang

HornJake Wenig

Two-base vaseKeeshawn King

FlowerNivedita Ravi

A SaddleEsmeralda Michaca

Castle in the SkyVictoria Silva

3D printed objects

A 3D printed model of Purchase CollegeLaszlo Osvath

Acknowledgements

The organizers of ICTCM 2020

Keith Landa, Director of the Teaching, Learning and Technology Center, for introducing me to 3D printing technology

Computer Technology Services at Purchase College for providing 3D printing services

Hillsdale (NJ) Public Library and David Franz, the Director of the Library, for using their 3D printer

Purchase College Faculty Development Grant

UUP Professional Development Grant

Special Thanks go to all my students

who participated in this projectin 2015-2017

Thank you!Stay safe!

Hope to see you at ICTCM 2021!