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Efficient Large Assembly Techniques in SolidWorks for Designing Buses by Karl Celeste

Learn how Karl Celeste uses SolidWorks to optimize design processes for buses at Motovated, focusing on large assembly management and addressing common challenges. Discover valuable insights and best practices for creating complex bus models efficiently.

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Efficient Large Assembly Techniques in SolidWorks for Designing Buses by Karl Celeste

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  1. SolidWorks Large Assembly Techniques Using SolidWorks to Design Buses for Designline

  2. About Me – Karl Celeste • Design Engineer for Motovated 1.5 years • Worked on Designline projects both off-site and in-house • SolidWorks advocate

  3. Designline • Rolleston Company • International Office in Charlotte NC • Moved to 3D CAD ~2006 • Sell their buses worldwide

  4. Motovated Design & Analysis • Christchurch based • Advanced Mechanical Engineering and Analysis via CAD • Helped Designline in transition to 3D CAD • Continued on to US Hybrid Design/Modeling

  5. Challenges with Large Assemblies • Load time • File size • Even larger drw (x 10 not uncommon) • Write Access • Position Accuracy • Safeguarding modification • Robust mates, stability etc. over time

  6. Client Needs • Flexibility • Common & differential parts • SW2007 Multi-user environment without PDM • Clear & easy to understand model structure • Drawings mainly for BOM & general location

  7. Large Assembly Management Base Part (skeleton) • Contains base level geometry • Good control & access • Quick visual check • Reference the same critical geometry • Mate planes e.g. axle CL, step heights • Driven by base sketches • Snap into place • Mates independent of model geometry • Simplifies mates • Easier to find if it does fall over

  8. Large Assembly Management • Base Part

  9. Large Assembly Management • Base Part

  10. Large Assembly Management Folder Structure • Flat as possible • Reduce mates • Reduce depth • Model naming convention • Assembly or part • What area of the bus • Only an indication of which assemblies its used in • Common or differential part • E.g. 129004 rear chassis assembly, 128042 seat riser assembly, 129488 part

  11. Large Assembly Management • Actual Build

  12. Large Assembly Management • CAD Model

  13. Large Assembly Management General • Don’t model in context! • Fully constrain sketches • 1 drawing per model • Display ‘shaded’ not ‘shaded with edges’ • Use supplier models or model over them

  14. Large Assembly Management General • Remove all unnecessary info • Macros to speed up tedious processes e.g. re-use drawing, custom properties, pdf/dxf • Could use Speed Pak if using SW2009+ • Avoid complexity

  15. Large Assembly Management General • Options • Large Assembly mode

  16. Large Assembly Management General • Options • Large Assembly mode • External References

  17. Full Bus Model

  18. Questions?

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