Christian Voigt (ZSI) did a workshop on 3D printing within the facilitator training at the University of Applied Arts Vienna (14th of November 2019) -(in German)

1. DOIT
Prototyping & 3D-Druck
Zentrum für Soziale Innovation (Wien)
Workshop: 11.04.2019
Christian Voigt
CC BY 4.0 DOIT, http://DOIT-Europe.Net, H2020-770063

2. Workshop 1 – Cookie Cutter
(45 min)
Zeit Thema
5 3D Printing Beispiele für soziale Innovationen & Lernen
5 Intro: Vier mögliche Wege zum 3D Druck
10 Intro: TinkerCAD (Keychain)
20 Praxis: Cookie Cutter (Pokal falls noch Zeit)
5 ... 3D-Druck (≈ 60 min bis zur Fertigstellung)

3. Workshop 2 – Medaille / Pokal
(45 min)
Zeit Thema
5 3D Printing Beispiele für soziale Innovationen & Lernen
5 Intro: Vier mögliche Wege zum 3D Druck
5 Intro: TinkerCAD (Keychain)
10 Intro : Inkscape
20 Praxis: Pokal oder Medaille (mit oder ohne Schriftzug / Logo)
5 ... 3D-Druck (≈ xx min bis zur Fertigstellung)

4. Social Innovation
accessibility, usability, low cost solutions
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5. https://www.appropedia.org/3D_Printed_Otoscope
https://www.careables.org/discover-careables/
preventing soil transmitted diseases
in developing countries
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6. Education
clay box, action dice games
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7. https://ultimaker.com/solutions/education
< Click image >
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8. .. you could also do ‘help your neighbour’ or ‘check
your current electricity consumption’
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9. Use the following account or create your own ...
https://www.tinkercad.com/
Login: voigt@zsi.at
Password: november2019

10. 4 ways to get a print
• Thingiverse: Download STL (STereoLithographie)
• TinkerCAD: Ready made shapes
• TinkerCAD: Import vector graphics
• Inkscape: From sketch to vector graphic
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11. Christian Voigt (ZSI) 11
Thingiverse

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https://www.thingiverse.com/thing:3359054

13. Manoeuvring TinkerCAD
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14. TinkerCAD
(Workshop 1 Focus)
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15. TinkerCAD Steps
1. select shape & copy twice
2. Base plate (Height: 2 mm; Size: desired + 2 mm)
3. Solid body (cookie-cutter height: 15 mm)
4. Hollow body (Size: desired - 6 mm)
5. Select all three bodies and centre them on x,y
6. Group all three shapes so that final product is visible in a single
colour
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16. Christian Voigt (ZSI) 16
A teacup in 4 min: https://www.youtube.com/watch?v=ROztt1nlpSk

17. 17https://www.tinkercad.com/things/aQuerpgHlYN-pokal-julle

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19. Inkscape
(Workshop 2 Focus)
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20. Inkscape:
In order to obtain wall thickness ...
1.draw curves
2.switch from Object view to ’edit path by node – F2’
3.edit => select all nodes
4.make selected nodes smooth
5.duplicate object (ctrl + d)
6.ctrl + shift + ( or ) => smaller or larger
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21. Concepts in TinkerCAD
1. Solids and holes
2. Alligning
3. Grouping
4. Workplanes
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22. Solids and Holes
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23. Aligning
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24. Grouping
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25. Workplanes
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26. Shortcuts
• CMD + Arrow (moving against workplane)
• Shift + Arrows (moving in 10 unit steps)
• Shift + Mouse (simultaneous size changes x + y)
• Rotations best in ‘perspective way’
• F => Focus un selected object
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27. Christian Voigt (ZSI) 27

28. Concepts in Cura
Mostly default values:
1. Positioning and scaling
2. Nozzle, speed, layer height & cooling
3. Support structures
4. Build preview
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29. Christian Voigt (ZSI)
Positioning, scaling and rotating

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Nozzle, speed, layer height & cooling

31. Support Structures
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32. Christian Voigt (ZSI) 32
Build Preview

33. Trouble shooting
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34. 3D Printer Resolution
(e.g. a smooth surface)
... with a 0.4 mm nozzle layer hights between 0.1 ... 0.2 mm are recommended
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35. Causes
• Warping: Outside versus Build plate temperature (60 – 100
degrees)
• Spaghetti: Callibration and levelling in three dimensions
• Printer lapses: Layer height, printer speed
• Droping shapes: challenging object geometry (‘overhangs’);
usually support structures are recommended with
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36. For the curious mind:
http://fablearn.stanford.edu/fellows/sites/default/files/Blikstein_Martinez_Pang-Meaningful_Making_book.pdf
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Your Questions ....

37. Annex
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38. Printing
through
Code
• https://www.instructable
s.com/id/Designing-With-
Algorithms-in-Tinkercad/
• https://blog.tinkercad.co
m/2018/06/24/cad-and-
code-together-at-last
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