RepRap presentation at UJEP Usti nad Labem

1. Open Source self-replicating 3D printer
Josef Průša
josefprusa.cz
flickr.com/prusajr/
@prusajr
Wednesday, April 20, 2011

2. What is 3D printer?
• Additive processes vs. substrative processes
• 3D printing adds material instead of milling
it away
• Technology is 30yrs old
Wednesday, April 20, 2011

3. How does 3D printer work?
Y
X
2D + 2D + 2D + 2D + 2D = ?????
Wednesday, April 20, 2011

4. How does 3D printer work?
Z
X
Y
Wednesday, April 20, 2011

5. Simplified principle
Cartesian robot + Extruder
Z
+
X
Y
= 3D printer
Wednesday, April 20, 2011

6. Extrusion detail
video by Koen Kooi
Wednesday, April 20, 2011

7. Extrusion detail
video by Koen Kooi
Wednesday, April 20, 2011

8. 240 whistles for TEDxPrague 300 more to go
Wednesday, April 20, 2011

9. Printing of whistles
Wednesday, April 20, 2011

10. Bridge
Wednesday, April 20, 2011

11. Overhangs
Wednesday, April 20, 2011

12. Impossible
Wednesday, April 20, 2011

13. Every can be different!
Wednesday, April 20, 2011

14. “History”
• 2005 - Founded by Dr Adrian Bowyer at
the University of Bath
• 2006 - First part printed
• 2008 - RepRap Darwin
• 2009 - RepRap Mendel
• 2010 - Huxley, Prusa Mendel
Wednesday, April 20, 2011

15. 2006 first printed part
• Chicken and egg
problem
photo by Vik Oliver
Wednesday, April 20, 2011

16. 2008 Darwin
• First printer released
• Big, bulky, hard to
assemble
• But it worked!!
photo by Adrian Bowyer
Wednesday, April 20, 2011

17. 2009 Mendel
• Smaller
• Faster
• Faster to replicate
Wednesday, April 20, 2011

18. 2010 Huxley
• Even smaller
• Still PITA to
assemble
• Smaller build area
photo by Erik De Bruijn
Wednesday, April 20, 2011

19. 2010 Prusa
• Almost no bearings,
using PRINTED
alternatives
• Build time reduced to
few days for newbies
• Half replication time
Wednesday, April 20, 2011

20. Living thing!
Wednesday, April 20, 2011

21. Number of printers
• nobody really knows, most of the printers
are crowd-sourced
• Erik de Bruijn estimated in his thesis
between 3872 and 4840 people in the
community (October 2010)
• But what we know for sure, community
grows exponentially!!
Wednesday, April 20, 2011

22. Materials
• mostly thermoplastics in 3mm or 1.75mm rod form
• ABS (LEGO)
• PLA (compostable plastic, throw away cups)
• paste consistence materials
• clay (ceramics)
• silicone
• chocolate
• exotic materials
• metals
• chemicals for electronics printing
Wednesday, April 20, 2011

23. Impossible ceramics
photo by Unfold
Wednesday, April 20, 2011

24. Real life use
• Starts from small everyday use objects
by nophead by zydac by DesignGlut
by wade
Wednesday, April 20, 2011

25. photo by MakerGear
Wednesday, April 20, 2011

26. First ever working
open source
glasses?!
GPL v2
photo by root.cz
Wednesday, April 20, 2011

27. Upgrade in few hours
Wednesday, April 20, 2011

28. image by NASA
Wednesday, April 20, 2011

29. design and image by Tomáš Rousek
Wednesday, April 20, 2011

30. Whistle story
• Whistle was originally designed by Zaggo, located in germany
~10hrs
Wednesday, April 20, 2011

31. Wednesday, April 20, 2011

32. Wednesday, April 20, 2011

33. Wednesday, April 20, 2011

34. Wednesday, April 20, 2011

35. 3D printer in every home
• First in hackerspaces, which will work as
3D copy centers. Basically happens now.
• Nobody can guesstimate when 3D printer
will be in every home
Wednesday, April 20, 2011

36. Why Open Source
• You can’t sell more then one self replicating
machine. Its bad business model.
• Much faster development
• No worries with patents, more time for
developments
• Free open source education
Wednesday, April 20, 2011

37. Build party Aachen
Wednesday, April 20, 2011

38. Build party Maastricht
Wednesday, April 20, 2011

39. Build parties
• People forget how awesome is it to create
something with their own hands!!!
Wednesday, April 20, 2011

40. Discussion
• Recyclation?
• Commercial printers?
• ... ?
Wednesday, April 20, 2011