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Synchronous Modeling Considered by Steve Samuel

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A subset of Steve Samuel's presentation at PLM connections 2009

A subset of Steve Samuel's presentation at PLM connections 2009

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Synchronous Modeling Considered by Steve Samuel Synchronous Modeling Considered by Steve Samuel Presentation Transcript

  • Subset of slides presented Synchronous Modeling Considered By Stephen Samuel 2009 PLM World Users Conference Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 1
  • Design Visionaries Overview  Design Engineering (80%)  Custom NX and Teamcenter Implementation and Training  NX Books (NX2 Advanced, NX3, NX4, NX5, NX6 Nastran, Teamcenter)  It’s a continual honor and pleasure to perform these speeches for you. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 2
  • Conclusion  Synchronous modeling is a fantastic “new” tool that can be used through out the design process.  Many people in many companies are afraid of it and don’t fully understand it.  Many others use it to their great advantage.  It’s use requires a fresh look at your design processes with custom training for your user community. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 3
  • Synchronous Modeling is…  Parametric?  A technology that encourages bad modeling practices?  A huge saver or time?  Useful only to modify existing geometry?  What about history free mode? Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 4
  • “It’s easy to forget that your original job was to drain the swamp when you’re up to your ears in alligators.” Author unkown The swamp is the design process The alligators CAD modeling Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 5
  • Where does synchronous modeling fit into the overall process for product design? Ideation / Hand Industrial Product Analysis and Testing / sketches design design drafting Manufacturing Old Design Method Ideation / Hand Industrial sketches design Product design Analysis and drafting Testing / Manufacturing New Design Method Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 6
  • Synchronous modeling decision tree  The comfort and the experience of the user.  The possibility of actually making design changes and reuse.  The size of the model and the regenerate time.  The propensity for the model to be dumbed down by some down stream application or process.  The probability that you will actually capture the design intent in such a way that it can be parametrically changed with out major and total re- definement.  What do you start with? Is it legacy data from another part file or a clean slate.  There are folks that really don’t have the ability to think as systematically as others. There are folks who need a roadmap – check list.  Casual users have a much harder time grasping the real parametric paradigm.  There are models that require falsifications that can easily be done with direct modeling, and are very difficult to do any other way. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 7
  • What good is “parametric” modeling anyway? • We can model faster and capture the design rules. • We can model with more certainty and with a far better audit trail. • We can make major changes to the model far faster. • We can model more systematically and with a better plan. • We can comment the model and give it to others for re-use because we can work according to a system that is shared by the rest of the team. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 8
  • What’s the pain of parametric modeling?  Trying to consider every possible thing that you might want to change. In many cases is impossible.  Designers and engineers constrain the shape of the model to conform to what can be done parametrically.  Making one change to the model and having it effect something that you didn’t expect.  Having to decipher as a programmer all the things that go into a particular piece of geometry before you make a certain change.  Making a change to the model that for what ever reason doesn’t work because parametrics does things on occasion that doesn’t make any sense.  Having a model so large that it takes fifteen minutes to make any change to it. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 9
  • What good is Synchronous modeling?  We can model faster.  We can still model with an audit trail (CSG Tree) but we don’t have to.  Major changes to the model fast but not as global (more discrete).  We can model more easily with out a plan (it emulates certain design processes far more easily).  You can take a huge file that is untenable and make changes to it that are very important with out being a programmer.  Can be used to repair things such as bad surfaces and little spikes and cuts.  Can be used to re-parameterize dumb solids.  Allows you to work on a discrete portion of the model with out making changes that you are un aware of.  Hack and slash has huge merits. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 10
  • What are some of the part types that require more and less synchronous modeling  Models of castings with a huge amount of fins going in various directions are best done with synch.  Valve bodies and predictable geometry best with parametrics only.  Rods and shafts with gears and splines are best done with parametrics only.  Highly surfaced work with many bosses and ribs are very well done with synchronous modeling.  Legacy data with a sketchy CSG tree should be done with synchronous modeling.  Models that are passed back and forth among cross functional groups can use a lot of synchronous modeling.  Highly blended and surface drafted modeling is a good candidate for synchronous modeling. Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 11
  • Free resources  www.yougizmos.com  Many audio-visual tutorials on how to use advanced techniques  www.designviz.com/webinar  A webinar entitled “The Design Visionaries Training Advantage” which will help you maximize your investments in Teamcenter, NX, Nastran etc.  A whitepaper covering similar topics and showing samples of company specific custom training material  An NX test you can use to gauge the performance of your staff  Q&A  Contact: Steve Samuel 408-997-6323 Steve Samuel / Design Visionaries www.designviz.com 408 997 6323 12