This document provides information about 3D printing, lasercutting, and rapid prototyping technologies. It discusses why rapid prototyping is useful for creating physical models from virtual designs and inspecting technical specifications. It then describes various 3D printing and lasercutting techniques like stereolithography, fused deposition modeling, selective laser sintering, and polyjet processes. Examples of properties and suitable applications for each technique are given. The document concludes by discussing how to get started with a lasercutting design project and provides an example of designing a cardboard lamp.

1. 1 Workshop 3D printing & Lasercutting Bart Grimonprez Summerschool2010 08.09.2010

2. 2 3D printing: Rapid Prototyping Why Technologies & properties Examples Lasercutting How to Getstarted

3. 3 Rapid Prototyping Why? Creating a physical part of a virtual design Creating otherwise impossible forms and shapes Communication tool for clients Inspecting the technical specs of a design Visual model for marketing purposes Small series of functional parts Mechanical, ergonomical, visual tests 3D printing | Lasercutting

4. 4 “The replicator” 3D printing| Lasercutting Rapid Prototyping Terminology 3D printing? Rapid Prototyping? RapidManufacturing? RapidTooling? e-Manufacturing? Direct Digital Manufacturing? -> AdditiveLayerManufacturing (ALM)

5. 5 3D printing | Lasercutting Rapid Prototyping Rapid prototyping = layer manufacturing Additievetechnologies Approximation through STL format (3D) Slicing of the model (2D profiles) Building of the layers

6. 6 3D printing | Lasercutting Rapid Prototyping Catagorisation Rapid Prototypingtechnologies Starting from liquid resin, to be hardened Starting from powder, plates or molten polymer Depending on technology, support structures can be necessary!

7. 7 3D printing | Lasercutting Rapid Prototyping Stereolithography(SLA) Developed early 90’s Liquid resin Laser based E.g. 3D-systems, Viper

9. Building materialphotopolymer

10. Traditionally hard butfragilematerial, nowalsoflexibleandrigid

11. Transparant material is possible

12. Detoriationunderinfluence of UV

13. Visual models, mostlynotfunctional (dependingonmaterial)

14. Accurate

15. Goodfor finishing

18. Materialsmostlyused: ABS, PC

19. Limitedfunctional models, verification

20. Building orientation is important

21. Accurate

22. Quick & clean

23. Smaller models

26. Building materialPA

27. Functional models

28. Loweraccuracy

29. Fairlyroughsurface

30. No extra support structure

33. Building material: plasterpowderorstarch

34. Visual models, 3D printen in colour

35. CAD verification

36. Loweraccuracy

37. Quick & cheap

38. Fluidsforimpregnating(hard-flexible)

41. Building material: acrylate

42. Flexiblematerials are possible

43. Semi transparant

44. CAD verification

45. Detailed features

46. High accuracy

47. Expensive

49. 18 3D printing | Lasercutting Specifications Low power CO2 laser (50 Watt) Cutting in most plastics, cardboard, leather, foam, rubber, wood Etching & engraving also in metals, glass, ceramics, hard wood

50. 19 3D printing | Lasercutting Gettingstarted Cutting Vector based -> AutoCad, CorelDraw, Illustrator, Rhinoceros, Inkscape,… Etching Vector based or bitmap (rasterising) -> any kind of image, word-file, …

51. 20 3D printing | Lasercutting Design a lamp in cardboard Import a template file (pdf, ai, dxf, svg) in Illustrator, CorelDraw, AutoCad, Rhinoceros, Inkscape,… Edit, personalise, draw Think about nesting your lamellas onto 1 or 2 plates

52. 21 3D printing | Lasercutting Example Edit paths by nodes Circular parts available, only edit the outer contour of the lamellas Nest 8 lamels on 1 or 2 plates: 600x450mm, keep clear from the edges Don’t change the object properties (fill, color, thickness,…) Think about orientations in the currogated cardboard

53. Vragen? 22 Bart Grimonprez Howest Industrial Design Center | ProtoLab Marksesteenweg 58 8500 Kortrijk 056 24 12 11 protolab@howest.be -> Moving on to ProtoLab... (ground floor)