Reproducing a Jeep BRC-40 with Reverse Engineering Michael Raphael, Direct Dimensions, Inc.
Discussion Topics <ul><li>Historical Overview of the Jeep </li></ul><ul><li>Specific Client Request </li></ul><ul><li>Iden...
Historical Overview of the Jeep <ul><li>Original “Jeep” Prototype  </li></ul><ul><li>1940 American Bantam Car Company pilo...
Specific Client Request <ul><li>Measure various parts from antique BRC-40 Jeep frame </li></ul><ul><li>Parts needed to be ...
Identifying the Problem <ul><li>Original deteriorating frame posed measurement problems because of frame warping and corro...
<ul><li>A combination of the LDI Laser Scanner mounted on a 12’ FARO arm and point probing allowed for accurate data captu...
Overview of the Solution: Jeep Frame Case Study
Overview of the Solution: Jeep Frame Case Study
Initial Step – Laser Scanning and Data Capture <ul><li>Scanning the Jeep frame with the LDI Laser Scanner </li></ul>
Next Step –Aligning Point Clouds <ul><li>Aligning the captured point clouds in RapidForm </li></ul>
Next Step – Mirroring Frame <ul><li>Mirroring and Comparing one side of the frame to the other </li></ul>
Next Step – Polygonal Modeling <ul><li>Aligning, cleaning, and filling in holes on the polygonal model </li></ul>
<ul><li>Aligning part positions to hole locations and other features </li></ul>Next Step – Reverse Engineering Specific Pa...
<ul><li>Aligning part positions to hole locations and other features </li></ul>Next Step – Reverse Engineering Specific Pa...
Next Step – Reverse Engineering Specific Parts <ul><li>Reverse Engineering and creating specific features from the polygon...
<ul><li>Continuing to create and align specific parts to the overall rail form </li></ul>Next Step – Reverse Engineering S...
<ul><li>Overlaying the “Design Intent” model on top of the completed polygonal model to check for error and inconsistencie...
Final Step – Deliver Requested Models <ul><li>Complete all modeling and deliver the requested models in proper formats </l...
Jeep Frame - Review
Benefits/Value <ul><li>Because project was completed using one software package, time was not lost translating compatible ...
Summary/Conclusion <ul><li>All parts were modeled to client’s specifications </li></ul><ul><li>With this “digital archive”...
Questions?
Thank you! Michael Raphael, Direct Dimensions, Inc.
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DDI Vintage Jeep Frame Presentation 2008

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This PowerPoint presents a case study project of 3D laser scanning a vintage undercarriage frame from a 1940's era Jeep and reverse engineering the raw scan data into a clean 3D CAD model ready for re-manufacturing.

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DDI Vintage Jeep Frame Presentation 2008

  1. 1. Reproducing a Jeep BRC-40 with Reverse Engineering Michael Raphael, Direct Dimensions, Inc.
  2. 2. Discussion Topics <ul><li>Historical Overview of the Jeep </li></ul><ul><li>Specific Client Request </li></ul><ul><li>Identifying the Problem </li></ul><ul><li>Overview of the Solution: Jeep Frame Case Study </li></ul><ul><li>Jeep Frame – Review </li></ul><ul><li>Benefits/Value </li></ul><ul><li>Summary/Conclusion </li></ul>
  3. 3. Historical Overview of the Jeep <ul><li>Original “Jeep” Prototype </li></ul><ul><li>1940 American Bantam Car Company pilot model </li></ul>
  4. 4. Specific Client Request <ul><li>Measure various parts from antique BRC-40 Jeep frame </li></ul><ul><li>Parts needed to be completed in an AutoCAD format </li></ul><ul><li>Accurate models needed so client can duplicate them exactly </li></ul><ul><li>Specific parts include: frame rails, spring mounts, and “K” cross member </li></ul>
  5. 5. Identifying the Problem <ul><li>Original deteriorating frame posed measurement problems because of frame warping and corroded components </li></ul><ul><li>“Design intent” model needed </li></ul>
  6. 6. <ul><li>A combination of the LDI Laser Scanner mounted on a 12’ FARO arm and point probing allowed for accurate data capture </li></ul><ul><li>Using RapidForm XOR allowed DDI to import all scan and digitizer data and reverse engineer the parts using one software package </li></ul>Overview of the Solution: Jeep Frame Case Study
  7. 7. Overview of the Solution: Jeep Frame Case Study
  8. 8. Overview of the Solution: Jeep Frame Case Study
  9. 9. Initial Step – Laser Scanning and Data Capture <ul><li>Scanning the Jeep frame with the LDI Laser Scanner </li></ul>
  10. 10. Next Step –Aligning Point Clouds <ul><li>Aligning the captured point clouds in RapidForm </li></ul>
  11. 11. Next Step – Mirroring Frame <ul><li>Mirroring and Comparing one side of the frame to the other </li></ul>
  12. 12. Next Step – Polygonal Modeling <ul><li>Aligning, cleaning, and filling in holes on the polygonal model </li></ul>
  13. 13. <ul><li>Aligning part positions to hole locations and other features </li></ul>Next Step – Reverse Engineering Specific Parts
  14. 14. <ul><li>Aligning part positions to hole locations and other features </li></ul>Next Step – Reverse Engineering Specific Parts
  15. 15. Next Step – Reverse Engineering Specific Parts <ul><li>Reverse Engineering and creating specific features from the polygonal and geometric data </li></ul>
  16. 16. <ul><li>Continuing to create and align specific parts to the overall rail form </li></ul>Next Step – Reverse Engineering Specific Parts
  17. 17. <ul><li>Overlaying the “Design Intent” model on top of the completed polygonal model to check for error and inconsistencies </li></ul>Next Step – Comparing Captured Polygonal Model to “Design Intent”
  18. 18. Final Step – Deliver Requested Models <ul><li>Complete all modeling and deliver the requested models in proper formats </li></ul>
  19. 19. Jeep Frame - Review
  20. 20. Benefits/Value <ul><li>Because project was completed using one software package, time was not lost translating compatible files between programs </li></ul><ul><li>Using both a laser scanner and digitizer allowed for a checks/balances and more complete data to build and align parts </li></ul>
  21. 21. Summary/Conclusion <ul><li>All parts were modeled to client’s specifications </li></ul><ul><li>With this “digital archive” client can replicate these parts an infinite amount of times and now has a precise digital record of this frame </li></ul><ul><li>This method is far more accurate than any other method to measure aged parts </li></ul>
  22. 22. Questions?
  23. 23. Thank you! Michael Raphael, Direct Dimensions, Inc.

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