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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

Multi-axis Rapid Prototyping

Neil Sewell

Dr. Martin Jenkins & Dr. Richard Everson

overview
Overview
  • What is RP, why use it, who uses it?
  • Previous work
  • Current work and Future work
  • Lab demonstration
rapid prototyping 3 types
Rapid Prototyping – 3 types
  • Type 1 - DTM Laser sinterstation
rapid prototyping
Rapid Prototyping
  • Type 2 - 3D Systems’ Stereolithography
rapid prototyping1
Rapid Prototyping
  • Type 3 - 3D Printers
rp why use it
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
rp who uses it
RP – Who uses it?
  • Virtually all major device manufacturers
  • Designers & Prototypers
  • One-off producers
previous work
Previous work...
  • SARP is Single Axis Rapid Prototyping
sarp single axis rp
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
examples of sarp
Examples of SARP
  • Cubes
  • Spheres
  • Arches
  • Logos
current work
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
marp multi axis rp
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
how to marp step 1
How to MARP – Step 1
  • Perform analysis of object - create a usable data structure.
how to marp step 2
How to MARP – Step 2
  • Select start location & direction
how to marp step 3
How to MARP - Step 3
  • Start the edge following process
how to marp step 4
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)

latest work
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
conclusion
Conclusion
  • MARP work is going well - But is difficult
  • Software
    • Multiple data lists
    • Edge following
    • Uses Downhill Simplex Method
    • Started testing Simulated Annealing
conclusion1
Conclusion
  • Realism with MARP - What can it build?
    • Difficult shapes
    • Disjoint shapes
    • Really complex shapes?
thank you for listening
Thank you for listening…
  • Questions
  • Visit to lab for Multi-Axis demonstration