A couple of weeks ago, I attended a very interesting event called the 3D Collaboration & Interoperability Congress 2016 (3D CIC) that was hosted by our colleagues at Action Engineering. The actual conference event was two days, but was preceded by a SOLIDWORKS user group meeting that focused exclusively on model-based definition (MBD) for an entire day. Myself, along with about 60 other attendees got a good look at MBD, not just SOLIDWORKS’ perspective, but a broader view, as well.
I was fortunate to sit next to Oboe Wu, product manager at SOLIDWORKS who is a huge proponent of MBD. With SOLIDWORKS MBD, you can communicate product and PMI directly in 3D, bypassing time-consuming 2D processes, in other words, drawings.
SOLIDWORKS MBD sets data such as product models, dimensions, geometric tolerances, surface finishes, welding symbols, bills of material (BOM), callouts, tables, notes, Meta properties, and other annotations within the SOLIDWORKS 3D environment in 3D PMI. Because all the information needed to guide the operation is integrated with the 3D models, traditional 2D drawings are no longer needed (at least in theory).
With MBD, 2D drawings become less necessary and meaningful. Instead of having a 3D model and a 2D drawing in a traditional workflow, the model is the drawing in an MBD workflow. The MBD approach provides a direct connection and single digital data thread from design to engineering to inspection.
SOLIDWORKS MBD 2017
In our conversations, SOLIDWORKS’ Wu was quick to point out that while MBD promotes more clear communication, it is not yet a total replacement for 2D drawings for many customers, but rather a peaceful coexistence between model and drawing. In other words, MBD is not just going paperless, it’s much broader than that. With MBD, he said that the full potential of 3D models is just now beginning to be realized by a wider customer base, with a younger workforce being more accepting of 3D models and MBD. In his opinion, he said that some of the biggest drivers for MBD and its direct design-to-manufacturing connection are additive manufacturing, as well as conventional machining.
Interoperability, collaboration, inspection, quality, standards, proprietary data, neutrality, competition, and innovation – these are words and realities that all manufacturers deal with daily. Over the years there have been myriad attempts to bring this stuff together, all while protecting IP. However, as we know, while the attempts to make this happen have often been valiant, too often they have fallen well short, or worse, failed altogether.
That failure may be on its way to being a thing of the past with the advent of the Quality Information Framework (QIF), an ANSI standard that supports digital thread concepts in engineering applications ranging from product design through manufacturing. Based on the XML standard, it contains a Library of XML Schema ensuring both data integrity and data interoperability in Model Based Enterprise (MBE) implementations. (more…)
Over the course of a year I read a lot of books — technical, non-fiction, hardcopy, and digital. Most of them I get through, although there are some I don’t even try to finish, and a few become favorites and are kept for future reading on my bookshelf. I just finished a book entitled Re-Use Your CAD: The Model-Based Handbook by Jennifer Herron. When I saw Handbook in the title, I thought it would be just a dry reference book, but I was pleasantly surprised that it was much more than that — it’s a good learning resource.
First, a little about the author and model-based engineering/model-based design (MBE/MBD).
I’ve known Jennifer for several years as we’ve crossed paths at software conferences. She is the owner of Action Engineering, a company that specializes in the promotion, process development, and standardization of 3D CAD MBE and MBD. She is an expert in multiple CAD packages, which she uses along with her practical design experience to hone standards and processes that optimize the ROI of all CAD systems.
She also offers model-based documentation education seminars, MIL-STD-31000A schema and modeling best practice training, as well as planning consulting services for Model-Based Engineering implementation. Keep in mind as you read the book that based on her experience, she is a stickler for standards, such as ISO, but you realize that’s probably a good thing.
Her company is a consulting firm that transitions government organizations and companies to effectively and efficiently implement Model Based Engineering. With a specialty in training organizations to document and tailor their business practices to be compatible with CAD, PDM and PLM software tools, Action advises companies in: CAD modeling standards and best practice, designer modeling efficiency, CAD configuration management, MBE training, team collaboration and CAD interoperability.
The concept(s) of MBE/MBD have received a lot of attention in the past few years because this approach handles product development using a digital master model, and not just necessarily CAD. All downstream activities can be derived from the master model to develop a product. The MBE/MBD approach replaces puzzling documents and can minimize the need for physical prototypes before an optimized design has been developed. In other words, engineers and designers can simulate and iterate as much as necessary to refine a model while also meeting requirements and adhering to design constraints.
Now on to the book . . .
Reuse Your CAD Handbook
The book is structured in a logical manner for those both new and experienced with MBE/MBD. Throughout, it stresses the importance of standardizing, centralizing, documenting, and reusing a CAD database. It’s written in a CAD-agnostic manner, so its principles can be applied in any CAD environment, regardless of vendor.
A sampling of some of the topics covered in the book include:
Explanation of the philosophy of designing products using CAD model-based life-cycles
Implementation guide to model-based commercial (ASME Y14.41), government (MIL-STD-31000A) and company standards
Model-based benefits, risks, and action plans
3D MBD model organizational schema
3D MBD model protocols to satisfy the schema CAD agnostically
Part and assembly modeling best practice
Mass property implementation methods
3D model Data Exchange (DEX) methods
MBE support infrastructure requirements
Product data management (PDM) fundamentals and requirements
A good friend of ours at MCADCafe, Jennifer Herron, owner of Action Engineering, a company that specializes in the promotion, process development and standardization of 3D CAD Model-Based Design (MBD) just released a new video on reusing CAD parts.
In the video, Action Engineering calls a catalog part, a part or subassembly used more than once in a family of products. It may be a bearing, motor, bolt or washer. In a 3D model-based environment a catalog part model should be assembled into your organization’s native CAD assembly models and includes accurate geometry (as specified from the supplier), attributes (Material, Color), metadata (Part Number, Description, Supplier) and annotations (Dimensions and GD&T). A single catalog part model is the single authority for each catalog item used in your organization.
For more information regarding CAD reuse, contact: