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An Investigation into curved layer deposition for Fused Deposition Modelling Vivek Anand A thesis submitted to Auckland University of Technology in partial fulfilment of the requirement for the degree of Master of Philosophy (M.Phil) Dec 2010 School of Engineering Under the supervision of: Dr. Sarat Singamneni ii
Contents Abstract.......................................................................................................................vi Acknowledgement.....................................................................................................viii List of Figures..............................................................................................................ix List of Tables..............................................................................................................xii List Abbreviations......................................................................................................xiii Chapter 1 Introduction............................................................................................14 1.1 Rapid Prototyping..............................................................................................14 1.1.1 Stereolithography........................................................................................17 1.1.2 Selective laser sintering..............................................................................18 1.1.3 Laminated object manufacturing.................................................................19 1.1.4 Fused deposition modelling.........................................................................20 1.1.5 Laser Engineered net shaping....................................................................21 1.1.6 RP Technologies at a glance......................................................................22 1.2 Fused Deposition Modelling..............................................................................23 1.3 Technical Limitations.........................................................................................27 1.4 Literature Review...............................................................................................29 1.5 Research Question and Objectives...................................................................36 Chapter 2 Mathematical Modelling for Curved layer Fused deposition Modelling..................................................................................................................38 2.1 The Rapid prototyping Routine..........................................................................38 2.1.1 Modelling......................................................................................................40 2.1.2 Modelling Construction.................................................................................41 iii
Page 1: An Investigation into curved layer
Page 5 and 6: 3.5.2 Fabepoxy.....................
Page 7 and 8: methodology to print simple curved
Page 9 and 10: List of Figures 1.1 The Rapid proto
Page 11 and 12: 4.3 Parts being tested with Hounsfi
Page 13 and 14: List of Abbreviations 3D: Three dim
Page 15 and 16: Fig 1.1 The Rapid prototyping Cycle
Page 17 and 18: 1.1.1 Stereolithography Stereolitho
Page 19 and 20: The object to be made is first mode
Page 21 and 22: 1.1.5 Laser Engineered Net Shaping
Page 23 and 24: 1.2 Fused Deposition Modeling A det
Page 25 and 26: Fig 1.8 Deposition Head Different t
Page 27 and 28: 900mc is capable of producing parts
Page 29 and 30: noted that the parts built in this
Page 31 and 32: structure. Honeycomb scaffold archi
Page 33 and 34: optimal direction to build a part t
Page 35 and 36: processing treatment was analyzed w
Page 37 and 38: The actual influence of the curved
Page 39 and 40: Separating the Main part with its s
Page 41 and 42: limited to simple models. It could
Page 43 and 44: Fig 2.2 Faces, Edges and Vertices o
Page 45 and 46: 2.1.5 Constructive Solid Geometry C
Page 47 and 48: A STL file is a triangular represen
Page 49 and 50: Fig 2.8 A sample Binary STL File Sl
Page 51 and 52: Different processes may either vary
Page 53 and 54:
At the very outset of generating th
Page 55 and 56:
and correction of each point to sat
Page 57 and 58:
apid prototyping machine are remove
Page 59 and 60:
Fig 2.13 Main Part Fig 2.14 Support
Page 61 and 62:
As this text file is to be used wit
Page 63 and 64:
mounted to the axes carriage. Timin
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Fig 3.1 The deposition head At the
Page 67 and 68:
3.2.3 Assembling Electronics and ca
Page 69 and 70:
microcontroller is now disconnected
Page 71 and 72:
The relationship between test point
Page 73 and 74:
on the mechanical properties and po
Page 75 and 76:
3.5.1 Silicone with other materials
Page 77 and 78:
Fab@home machine. Since our require
Page 79 and 80:
are printed using the two suitable
Page 81 and 82:
The support structure‟s dimension
Page 83 and 84:
machine Fig 3.13 Flat and curved la
Page 85 and 86:
4.1 Experimental conditions Chapter
Page 87 and 88:
have many factors from contention a
Page 89 and 90:
4.3 Taguchi methods There are two t
Page 91 and 92:
Such steps usually identify the nee
Page 93 and 94:
Nominal is best Larger is better S
Page 95 and 96:
Control of material flow - The lead
Page 97 and 98:
Fig 4.3 Parts being tested with Hou
Page 99 and 100:
values in all cases are almost doub
Page 101 and 102:
level. The other parameters were in
Page 103 and 104:
The finite element method has had a
Page 105 and 106:
performance of finished FDM parts [
Page 107 and 108:
ehaviour with failure occurring at
Page 109 and 110:
Fig. 2 (a) is the thin curved part
Page 111 and 112:
Table 5.1 Property data: Fabepoxy M
Page 113 and 114:
optimum number. The final finite el
Page 115 and 116:
Fig. 5.11 Load and boundary conditi
Page 117 and 118:
overall deflection pattern of two s
Page 119 and 120:
Fig. 5.13 Variation of compressive
Page 121 and 122:
Fig. 5.15 shows the overall deforma
Page 123 and 124:
The effectiveness of the deposition
Page 125 and 126:
[11] M. Greul, T. Pintat, M. Greuli
Page 127 and 128:
[32] Philip J. Ross, 1988, “Taguc
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