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RepRap – the replicating rapid prototyper

Published online by Cambridge University Press:  14 January 2011

Rhys Jones
Department of Mechanical Engineering, Bath University, Bath BA2 7AY, UK
Patrick Haufe
Faculty 5, Department of Biomimetics/Biological Materials, Hochschule Bremen, University of Applied Sciences, Neustadtswall 30, D-28199 Bremen, Germany
Edward Sells
Bits From Bytes Ltd., Unit 17 Hither Green Industrial Estate, Clevedon, North Somerset BS21 6XU, UK
Pejman Iravani
Department of Mechanical Engineering, Bath University, Bath BA2 7AY, UK
Vik Olliver
Diamond Age Solutions Ltd., 72 Warner Park Avenue, Laingholm, Waitakere, New Zealand
Chris Palmer
Boatmans Row, Astley Green, Tyldesley, Manchester M29 7JQ, UK
Adrian Bowyer*
Department of Mechanical Engineering, Bath University, Bath BA2 7AY, UK
*Corresponding author. E-mail:
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This paper presents the results to date of the RepRap project – an ongoing project that has made and distributed freely a replicating rapid prototyper. We give the background reasoning that led to the invention of the machine, the selection of the processes that we and others have used to implement it, the designs of key parts of the machine and how these have evolved from their initial concepts and experiments, and estimates of the machine's reproductive success out in the world up to the time of writing (about 4500 machines in two and a half years).

Copyright © Cambridge University Press 2011


1.Shannon, C. E., “A mathematical Theory of Communication,” The Bell Syst. Tech. J. 27, 379423, 623–656 (Jul.–Oct. 1948). ( Scholar
2.Freitas, R. A. and Merkle, R. C., Kinematic Self-Replicating Machines (Landes Bioscience, Georgetown, Texas, 2004). ( Scholar
3.Von Neumann, J., Theory of Self-Reproducing Automata (University of Illinois Press, Illinois, 1996).Google Scholar
4.Cairns-Smith, A. G., The Life Puzzle (University of Toronto Press, Toronto, Ontario, 1971).CrossRefGoogle Scholar
5.Dyson, F. J., “The world, the flesh, and the devil. Self-reproducing machinery,” In: The Third J. D. Bernal Lecture, Birkbeck College, London (May 16, 1972).Google Scholar
6.Penrose, L. S., “Mechanics of self-reproduction,” Ann. Hum. Genetics 23, 5972 (1958). ( ScholarPubMed
7.Moses, M., A Physical Prototype of a Self-Replicating Universal Constructor Masters Thesis (Mechanical Engineering, New Mexico: University of New Mexico, 2002). ( Scholar
8.Suthakorn, J., Cushing, A. B. and Chirikjian, G. S., “An Autonomous Self-Replicating Robotic System,” Proceedings of the IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM 2003), Kobe, Japan (December 2003). ( Scholar
9.Zykov, V.Mytilinaios, E., Adams, B. and Lipson, H., “Self-reproducing machines,” Nature, 435, 163 (2005). ( ScholarPubMed
10.Freitas, R. A. and Gilbreath, W. P., “Advanced Automation for Space Missions,” Proceedings of the NASA Conference Publication CP-2255 (N83-15348), Summer 1980 (1982). ( accessed 22 November 2010)Google Scholar
11.Butler, S., Erewhon, (1872). ( Scholar
12.Stallman, R. et al. The GNU General Public License (Free Software Foundation, Inc., Boston, MA, 1991). ( Scholar
13.Crump, S. S., 1989. US Patent 5121329: Apparatus and Method for Creating Three-Dimensional Objects (Stratasys Inc., Eden Prairie, MN, 1989) ( Scholar
14.Sells, E. A., Towards a Self-Manufacturing Rapid Prototyping Machine Ph.D. thesis (Bath, UK: University of Bath, 2009). ( Scholar
15.Malone, E. and Lipson, H., “The Factory in your Kitchen,” Proceedings of the MCPC 2007 World Conference on Mass Customization & Personalization, MIT, Cambridge, MA, USA (October 7–10, 2007).Google Scholar
16.Tang, K. and Woo, T. C., “Algorithmic aspects of alternating sum of volumes. Part 1: Data structure and difference operation,” Comp. Aided Des. 23 (5): 357366 (1991). ( Scholar