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Multi-axis Rapid Prototyping

Multi-axis Rapid Prototyping. Neil Sewell Dr. Martin Jenkins & Dr. Richard Everson. Overview. What is RP, why use it, who uses it? Previous work Current work and Future work Lab demonstration. Rapid Prototyping – 3 types. Type 1 - DTM Laser sinterstation. Rapid Prototyping.

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Multi-axis Rapid Prototyping

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  1. Multi-axis Rapid Prototyping Neil Sewell Dr. Martin Jenkins & Dr. Richard Everson

  2. Overview • What is RP, why use it, who uses it? • Previous work • Current work and Future work • Lab demonstration

  3. Rapid Prototyping – 3 types • Type 1 - DTM Laser sinterstation

  4. Rapid Prototyping • Type 2 - 3D Systems’ Stereolithography

  5. Rapid Prototyping • Type 3 - 3D Printers

  6. RP – Why use it? • Injection moulds are expensive to produce • One-off test pieces can be used in real world • Great for real world ergonomic testing

  7. RP – Who uses it? • Virtually all major device manufacturers • Designers & Prototypers • One-off producers

  8. Previous work... • SARP is Single Axis Rapid Prototyping

  9. SARP – Single Axis RP • SARP is quick, cheap and easy. • Allows building of quite complex models • Is fast and efficient • But… • Will not allow for large overhangs • Is not to the same resolution

  10. Examples of SARP • Cubes • Spheres • Arches • Logos

  11. Current work... • MARP is Multi Axis Rapid Prototyping • Still uses VMC, Hot glue nozzle and glue • Different, more complex software • Add-on 4th and 5th Axis units to rotate models

  12. MARP – Multi Axis RP • Models with overhangs could be built • Building direction is continuously changed • Models created would of better quality • The process would be quicker

  13. How to MARP – Step 1 • Perform analysis of object - create a usable data structure.

  14. How to MARP – Step 2 • Select start location & direction

  15. How to MARP - Step 3 • Start the edge following process

  16. How to MARP – Step 4 • Create machine instructions • Use glue path to locate x,y,z position • Use facet data to provide rotation values • Use collision detection methods! (Lab demonstration at end of presentation)

  17. Latest Work • Uses many rules • Edge vector creation & analysis • Unnecessary edge deletion & detection • Improvement & Optimisation techniques • Current problems include • Holes in model • Sticky tight corners • Finishing problems

  18. Conclusion • MARP work is going well - But is difficult • Software • Multiple data lists • Edge following • Uses Downhill Simplex Method • Started testing Simulated Annealing

  19. Conclusion • Realism with MARP - What can it build? • Difficult shapes • Disjoint shapes • Really complex shapes?

  20. Thank you for listening… • Questions • Visit to lab for Multi-Axis demonstration

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