Publications

SOLIDWORKS MBD: Maturing Capabilities Benefit the Manufacturing Workflow
Jennifer Herron
MCADCafe, February 23, 2017
SOLIDWORKS World 2017 #SWW17

Technology is ready for MBD, and so is SOLIDWORKS.

Duane Hess, Application Engineer at Action Engineering, attended SOLIDWORKS World in February 2017. Read More about his impressions of SOLIDWORKS World and the Model-Based Definition “learning path” presented throughout the conference.


Finding your CAD groove
Jennifer Herron
GrabCAD, January 9, 2017

In Spring 2016, I wrote how you should take The Model-Based Definition Ski Challenge. Well, in late December, I started up the 2016-17 ski season with my family amidst fresh powder and all new ski gear … and it was all about regaining our ski groove. Getting into the CAD groove is much like finding your ski groove. Learn from my skiing and CAD experiences.


CADValidator: A Critical Aid for the Model-Based Enterprise
Annalise Suzuki, Jennifer Herron
elysiuminc.com, December 6, 2016

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Model-Based Definition enables the automation of 3D capture and comparison capabilities. A highly robust validation software, such as Elysium‘s CADValidator, enables downstream processes to leverage MBD data. While automating form-fit-function changes, CADValidator also captures presentation and representation changes that are not otherwise captured in a drawing-centric processes.


2D Drawings are an Art, MBD is a Science
Jennifer Herron
GrabCAD, September 13, 2016


Creating 2D drawings is an art – knowing what information is required and how to display it in a readable arrangement, while being efficient with the space provided, takes certain skill and experience. It used to take a steady hand when a piece of paper and a pencil were the tools of choice. As CAD systems found their way into industry, capturing information in an electronic format was both a faster way to get the job done and provided a more consistent presentation of information.


How Model-Based Definition Can Fix Your CAD Models: Part 2
Dick Bourke with Jennifer Herron
ENGINEERING.com CAD/CAE, September 7, 2016

How MBD and MBE can Fix your CAD Models Image Graphic
In a previous post, we introduced model-based design (MBD) for providing clear, repeatable and unambiguous communication to all stakeholders.However, the procedural capabilities of MBD as shown below need to be integrated with model-based enterprise (MBE) processes to generate the desired results. With the emergence of the “digital thread” concept, the process of communication becomes ever more critical.


Enterprise 3D Printing: All About That Communication
Jennifer Herron
GrabCAD, July 13, 2016


I recently co-authored “Towards Annotations and Product Definitions for Additive Manufacturing” with Dr. Paul Witherell and Dr. Gaurav Ameta. The title sounds official, as it should for a published paper, but perhaps, between you and me, we could give it a lighter name: All About That Communication. Cue Meghan Trainor. Forms of the word “communicate” appear 43 times in the paper! Yes, I counted.


Measuring Digital Thread Value: NIST MBE Summit 2016
Jennifer Herron
MCADCafe, June 6, 2016


At the April 2016 MBE Summit, government and commercial entities gathered to discuss the digital thread and Model-Based Engineering. Hosted by the National Institute of Standards and Technology (NIST) in Gaithersburg, MD, this annual event is designed to identify challenges, research, implementation issues, & lessons learned in manufacturing and quality assurance where a digital 3D model of the product serves as the authoritative information source for all activities in the product’s lifecycle. Read more about my impressions from this Summit.


Why I Loathe 8-hour-a-day CAD Training
Jennifer Herron
GrabCAD, May 9, 2016


There are three things I take for granted & are the same things that make me an excellent CAD designer. I’m able to model in any CAD platform with very little “training,” while intuitively comprehending how every mouse click is used in the computer. Our readers may have similar skills, but “CAD super users” are rare. Most still create product definition day-in and day-out. So what do you do?


Engineering Treasure Hunt for Supplier Standards
Jennifer Herron
CADENAS PARTsolutions, Spring 2016

Vintage Map reading Engineering Treasure Hunt
Common parts, standard parts, supplier parts, vendor assemblies, stuff you buy from McMaster Carr — Whatever you call your parts that are purchased or regularly used in your assemblies, these are catalog parts, and they are separated into three categories: (read more)

 


How Model-Based Definition Can Fix Your CAD Models: Part 1
Dick Bourke with Jennifer Herron
ENGINEERING.com CAD/CAE, April 20, 2016

Understanding the parts of MBD (Model-Based Definition) is key.
Engineers may waste a significant amount of time fixing CAD models at the cost of productive design efforts. Unfortunately, the current conditions of CAD models may be—or could be—roadblocks in your quest for successful design reuse.

Understanding the parts of MBD (Model-Based Definition) is key.


STOP Re-Inventing and Re-Modeling Nuts, Bolts & Washers
Jennifer Herron
MCADCafe, April 13, 2016


Don’t have a standard parts book in your tool kit? Here’s why we think that is a bad idea: if you want to turn your Model-Based Enterprise (MBE) or Digital Enterprise dream into reality, you must eventually come to the realization that a robust and best-in-class strategy for catalog parts is imperative. We’re talking about a certified standard parts library.


Fighting Your 3D CAD Demons
Jennifer Herron
Lifecycle Insights, April 7, 2016

Woman Screaming at Computer Monitor in Frustration
Businesses are all about risk and managing that risk. It’s really important to understand what the risks are so that they can be properly mitigated. Hopefully you’ve already faced your 3D CAD demons. Now let’s dig into some misconceptions about them, to better enable you to fight those demons within your organization.


Towards Annotations and Product Definitions for Additive Manufacturing
Paul Witherell, Jennifer Herron,  Gaurav Ameta
Procedia CIRPVolume 43, 2016, Pages 339–344, 14th CIRP CAT 2016 – CIRP Conference on Computer Aided Tolerancing
April 2016

As Additive Manufacturing (AM) is viewed more and more as a production-capable technology, data and information needs have made the costs of AM complexity increasingly apparent. Techniques available in current GD&T practices do not fully support product definitions needs in additive manufacturing. The fully model-driven process introduces new intricacies and complexities that must be addressed to facilitate the reproducibility of AM parts. Machine-readability needs must trump human interpretation requirements. In this paper, we discuss the future directions of GD&T and semantic annotations as they relate to satisfying AM product definition requirements.


Using CAD Models in the Digital Thread
Jennifer Herron
MCADCafe, October 19, 2015


In design & manufacturing, we are at the stage where 3D models are used for direct tooling or to generate injection molds, but still need to be supplemented by 2D drawings for PMI (dimensions, tolerances and notes). Not only does this create extra work, 2D drawings are fundamentally flawed because the interpretation is limited to 2D, rather than real hardware which is 3D.


Facing Your 3D CAD Demons
Jennifer Herron
Lifecycle Insights, October 7, 2015


Has your organization achieved its desired level of Model-Based Enterprise (MBE) maturity? If not, what can you do?

Step 1: face your demons. You have to identify the barriers preventing your organization from becoming the MBE “of your dreams.” It’s easier to move forward once you fully understand what’s holding you back.


3D/MBD/MBE Continuing Education at CIC-2015
Jennifer Herron
MCADCafe, September 4, 2015


Fall Days remind me of School Days: new textbooks, turning to a crisp page of your composition notebook, and advancing the lead in your mechanical pencil (OK, maybe it was your iPad)? You gazed in rapt anticipation to the front of the classroom as the professor launched into a course lecture. Education was powerful then and it still is today.


Understanding the Hard Work of MBE
Jennifer Herron
MCADCafe, July 27, 2015


It is no small task to create a Model-Based Enterprise (MBE) with Model-Based Engineering (also MBE). When executed well, there is clearly a tangible benefit for small and large companies as well as government organizations. In our world of acronyms, there are at least three independent definitions for MBE; here is my take on each of those definitions.


SOLIDWORKS World 2015: Focus on MBD
Jennifer Herron
MCADCafe, February 15, 2015


Reflections of my week at SOLIDWORKS World in Phoenix AZ held February 8-12, 2015. There were countless training and educational sessions and probably countless cookies & cups of coffee. Robots, a remote controlled helicopter, 3D cameras and a very funny theoretical physicist. What I appreciated most each day was a pulse focused on Model-Based Definition (MBD), and the newly released MBD Module from SOLIDWORKS.


MBD and CAD Re-Use Workshop at SOLIDWORKS World
Jennifer Herron
MCADCafe, January 27, 2015


Do you use 2D flat drawings to communicate your product designs? Does it make sense to hand over a 3D model to your manufacturer? Do you know how to take advantage of the SolidWorks software suite to enable your organization to leap into a model-centric product definition world?

Do you need more educational support on MBD and MBE and how it might affect your design world? Read on.



Vehicle Mass Properties – Use the Best “Calculator” You Have
73rd Annual SAWE International Conference on Mass Properties Engineering

May 2014

Spacecraft are notorious for needing mass management strategies that require analysis of mass, center of mass and moments of inertia (MOI) results ASAP. It’s easy to get them once the system is built, but challenging to predict at inception. Most of the time, system engineers maintain a large spreadsheet of components with their mass and estimated MOIs. This system works, but isn’t as accurate as it could be. Generally, we shy away from including system mass in 3D CAD models because CAD software has historically been cantankerous about mass at the assembly level. In addition, we lack methods to put together the mass picture within the 3D CAD models. However, through software and hardware improvements, we can now allow the CAD system to be our “calculator” of vehicle system mass properties. Alas, there is a catch; you need workable methods. Learn the basics of managing your CAD Top Assembly and produce accurate, updatable and re-usable mass property data.


Win! Using Model-Based Engineering
Collaboration & Interoperability Conference
May 2014

At 32,000 ft you read the latest RFP (Request for Proposal). Struck by the magnitude of technical work required, you are also stunned by the request for your product design to be delivered via Technical Data Package (TDP), which includes handing over your 3D models. This concept is a totally new construct for your company. Raising your glass for another, the sigh is audible and your brain starts to swirl. Rest assured, when you make it back down to terra-firma, you will learn 3 methods to set you on a path to not only win your proposal, but also gain a competitive edge by effectively implementing Model-Based Engineering (MBE); MIL-STD-31000A and ASME Y14.41 style.


Re-Use Your CAD: The Model-Based CAD Handbook
Jennifer Herron
December 2013

ISBN-10: 1494877171, ISBN-13: 978-1494877170
Learn how to create, deliver, and re-use CAD models in compliance with model-based standards. Provides CAD format agnostic techniques for compliance with ASME Y14.41 and MIL-STD-31000A Model-Based Definition (MBD) and Technical Data Packages (TDP). The handbook provides 3D model protocols that enable Model-Based Engineering and Model-Based Enterprise (MBE) that will save time, reduce risk and improve products. Educates CAD Designers, Checkers, Administrators, Super-users and their Managers on how to create 3D models that are used downstream for direct manufacture, technical publications and customer deliverables. Using CAD best practice and modeling rules from relevant MBD and MBE standards, this straightforward handbook will move your organization forward into using, re-using and reaping the benefits of CAD.


Mass Properties Using MBE Methods
Design World Webinar, April 2013

There are times when you really need to know the mass properties of a design, before you build it. In this Design World editorial Webinar, Jennifer Herron discusses best practices in managing mass properties in CAD assemblies.


Vehicle Mass Properties, Use the Best “Calculator” You Have
AIAA Rocky Mountain Technical Symposium, October 2012

Spacecraft are notorious for needing mass management strategies that require analysis of mass, center of mass and moments of inertia (MOI) results ASAP. It’s easy to get them once the system is built, but challenging to predict at inception. Most of the time, system engineers maintain a large spreadsheet of components with their mass and estimated MOIs. This system works, but isn’t as accurate as it could be. Generally, we shy away from including system mass in 3D CAD models because CAD software has historically been cantankerous about mass at the assembly level. In addition, we lack methods to put together the mass picture within the 3D CAD models. However, through software and hardware improvements, we can now allow the CAD system to be our “calculator” of vehicle system mass properties. Alas, there is a catch; you need workable methods. Learn the basics of managing your CAD Top Assembly and produce accurate, updatable and re-usable mass property data.


MBE DOD Implementation Workshop
Collaboration & Interoperability Conference, May 2012

HEAR AUDIO

Model Based Enterprise (MBE) Workshop, hosted by Action Engineering, focused on implementation strategies for MBE infrastructure, developed by the Department of Defense (DOD) and the National Institute for Standards and Technology (NIST). The workshop hilighted the digital thread throughout the entire product lifecycle. The workshop covered topics of particular interest to engineering and IT managers who may be planning or implementing processes to drive a digital MBE/MBD (Model Based Definition) vision for more effective global collaboration in product development and manufacturing especially when they are to deliver technical data to government agencies.


MBE Dictionary
Collaboration & Interoperability Conference, May 2011

Learn the concrete definitions of MBE terms. The MBE Dictionary contains terms and their definitions. By using consistent language, we help temper frustration when discussing MBE solutions. The term definitions include graphical enhancements and practical examples.


Understand CAD Evolution
Collaboration & Interoperability Survey & Report, January 2011

Good design workflow implements a process that starts with an idea and evolves that idea into a producible part. A common misconception is that when the idea comes to life in a 3D CAD model, the design is complete. That misconception drives many a battle between engineer and manager.


3D Model Based Design: Setting the Definitions Straight
MCAD Cafe, September 2010

Go back to the basics and re-clarify the language we commonly use for Model Based Design/Definition (MBD).


MODEL BASED DESIGN: Why You Want It. Why You Hate It.
Collaboration & Interoperability Conference, May 2010

You want it because it seems like the direction all manufacturers are going. You want it because it seems that in our digital age, building hardware directly from an electronic file is the right thing to do. But you hate it because it is costing you money.


Is MBD Sending You to the Madhouse?
Collaboration & Interoperability Market Report 2009

What is happening in Model Based Design (MBD)? There is mayhem, bedlam, pandemonium, chaos; driving engineers to the brink of exasperation. Why so much frustration?


3D Printing Creates Articulating Rudder Components
Design World, August 2009

Model-based design techniques can help you break out “of the box” to explore creative ways to design and manufacture hardware.


Designer Toolkit for MBD and 3D Documentation
Collaboration & Interoperability Conference
May 2009

How to create CAD designs to facilitate collaboration and inter-operability between designers and the rest of the team.


3D CAD and Model-Centric Design
Design World, December 2008

Article that hi-lights the benefits of Model-Based (or -centric) design and how it can reduce a product’s time to market and cost.


Model-Centric Design for Aerospace
June 2008

Whitepaper discussing the importance of Model-Based Design (MBD) in the Satellite, Spacecraft and Launch Vehicle Business.