reprap presentation ujep
DESCRIPTION
RepRap presentation at UJEP Usti nad LabemTRANSCRIPT
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Josef Průšajosefprusa.cz
flickr.com/prusajr/@prusajr
Open Source self-replicating 3D printer
Wednesday, April 20, 2011
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What is 3D printer?
• Additive processes vs. substrative processes
• 3D printing adds material instead of milling it away
• Technology is 30yrs old
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How does 3D printer work?
2D + 2D + 2D + 2D + 2D = ?????X
Y
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How does 3D printer work?
X
Y
Z
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Simplified principle
X
Y
Z
+
Cartesian robot Extruder+
= 3D printer
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video by Koen Kooi
Extrusion detail
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video by Koen Kooi
Extrusion detail
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240 whistles for TEDxPrague 300 more to go
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Printing of whistles
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Bridge
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Overhangs
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Impossible
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Every can be different!
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“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
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2006 first printed part
• Chicken and egg problem
photo by Vik Oliver
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2008 Darwin
• First printer released
• Big, bulky, hard to assemble
• But it worked!!
photo by Adrian Bowyer
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2009 Mendel
• Smaller
• Faster
• Faster to replicate
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2010 Huxley
• Even smaller
• Still PITA to assemble
• Smaller build area
photo by Erik De Bruijn
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2010 Prusa
• Almost no bearings, using PRINTED alternatives
• Build time reduced to few days for newbies
• Half replication time
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Living thing!
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• 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!!
Number of printers
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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
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Impossible ceramics
photo by UnfoldWednesday, April 20, 2011
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Real life use• Starts from small everyday use objects
by nophead by zydac by DesignGlut
by wadeWednesday, April 20, 2011
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photo by MakerGear
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photo by root.cz
First ever working open source
glasses?!
GPL v2
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Upgrade in few hours
Wednesday, April 20, 2011
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image by NASAWednesday, April 20, 2011
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design and image by Tomáš Rousek
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Whistle story• Whistle was originally designed by Zaggo, located in germany
~10hrs
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Wednesday, April 20, 2011
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Wednesday, April 20, 2011
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Wednesday, April 20, 2011
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Wednesday, April 20, 2011
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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
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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
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Build party Aachen
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Build party Maastricht
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Build parties
• People forget how awesome is it to create something with their own hands!!!
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Discussion
• Recyclation?
• Commercial printers?
• ... ?
Wednesday, April 20, 2011