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3D CAD
Influence on Engineering
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Preface:

These articles are for the upper and engineering management professional that may have a bit of hands on CAD management experience, the academics in the engineering schools since the engineer now has taken on the responsibilities of the draftsman and the independent engineering consultant. This requires a new type of engineer which I call the "3D CAD engineer". It will illuminate the problems the PLM/MBE/MBD experts are having today.


4-24-2017 Update:

I have added quite a few article since I post this last. They are denoted with an asterisk. I have gotten a complaint that I should get an index so interest individuals could keep track of what they have read. I am not sure how to make that happen. I never thought I would have so much to say about the industry. I hope you enjoy my new articles. Again, thank for stopping by.



One of the more disturbing developments in the industry is the subscription only option. This is not a viable option to access your CAD system. This makes PTC, Autodesk or Onshape your partner forever, and forever is a long, long time. Let's say you own a company and you have a large amount of engineering information (Intellectual Property). If you sell your company or a product they have to purchase a subscription. With a perpetual system, you just include the license or they can purchase a seat, they don't have to be married to a system forever, that they may not even use. I suggest you do not upgrade to this system. Once you do there is no going back!

 

                                    You are Not Stuck with Autodesk 


It seems that PTC now only offers subscriptions. Sadly, most companies think they are stuck with these programs. It is very easy to move to another system. You just stop at your current system and use it for legacy slowly moving the projects to the new system. There are much more cost effective solutions. We just have to move our document control out of the CAD system. This article show to escape the CAD centric PLM system to easily accessible document management system.

              OnShape: The Ultimate Document Control System



                       
 The more popular articles are denoted in Purple

New articles denoted in Red

I was involved in the very beginning of effective 3D CAD in 1982. It was Computervision CADDS 4 which was one of the first to stabilized on a functional user interface which lasted for a decade.

Please read through the following articles and you can see how 3D CAD progressed from being based on mainframe computers, down to workstations and finally the PC. We started with wireframe design, then Surfacing and finally Solid modeling. There are a few systems that have all of those features that can coexist in the same design space: This is called Hybrid Modeling.

I have included other articles that show the different solid modeling CAD paradigms that were introduced to industrial/mechanical engineering industry. I also have articles on how 3D CAD systems were adopted in the industry.

Remember as you read these articles that all we did was add the 3D model basically as a pattern. You will see that those with very little experience were put in charge of making the transition from drawings to 3D CAD documentation as the engineering deliverable to manufacturing.


52 Years of Engineering

My First 17 Years or "How did we do it without 3D CAD!"


The 1980's - 3D CAD - The Beginning

The 1990's - 3D CAD/CAM Moves to the PC!!

The 2000's - The Age of 3D CAD Un-Enlightenment!

3D CAD TODAY! The State of the Industry!


 

So what "HAS" Gone Wrong with Engineering?

So what "HAS" gone wrong with Engineering? Part II 

 CADKEY or Catia? Boeing’s Billion-Dollar 3D CAD Mistake!


Many of the problems with current 3D CAD is
with the residual leftover concepts from the
previous standard engineering deliverable.


The Drawing!

 

"Engineering's only product is to deliver concise, complete
and unambiguous documentation to manufacturing."


Redefining 2D/3D To Draw or Not to Draw??

The Death of the Drawing

The Death of the Draftsman or  “Where has all the talent gone?”

Parts List or BOM?

Engineering Documentation Today!

The Space Between Engineering and Manufacturing

Part Design Defined

The Assembly Defined

All you want to know about 3D CAD training!
(But were afraid to ask!)


Should the New 3D CAD Engineer Learn Drafting?

Educating the New 3D CAD Engineer - 2015

Engineering Technologist? Engineering Technician?

The Integrated Drawing in 3D CAD

3D CAD and the 757


The 3D Modeling Paradigm

There were different modeling paradigms. The Pro/e (Creo) paradigm was introduced in 1998 and dangerously only offered one complex design process, which virtually all of the popular programs adopted. This is by far the least flexible design paradigm.

The Worst to Best 3D CAD System and Why

29 Years of 3D CAD Incompatibility
The New Generation of 3D CAD!!

Next Generation 3D CAD
Technology Applied!

Next Generation 3D CAD!!
The Win-Win Solution!!

Standardization!!! The Future of 3D CAD!!

Is 3D CAD Productivity an Oxymoron?

Solidworks Users are "NOT" Stupid? 

Welcome aboard Solidworks: Updated!

Welcome aboard Solidworks Rewritten!

Universal 3D CAD Compatibility is not Here!!

3D CAD Single Model Design Environment

CONCEPTUAL DESIGN
Which CAD Paradigm is Best?

The Lost 3D CAD Paradigm!
How I Found Freedom in an UNFREE 3D CAD WORLD!

Showing differences in Import
Using Dual Kernel and Repair options.

Are You Stuck in a 3D CAD Wagon World?

Onshape! A View from the Clouds


Document Control is now Data Management

This by far was the most devastating change from the drawing based system. It was IT (InfoTech) that took over document control and renamed it to data management and have "tried" to handle it as such. I don't even think they looked at the previous document control process. They developed a PLM system that was based on the Pro/e 3D CAD system. They tried to maintain both internal CAD documents, parts, assemblies and AIDs and deliver the native file as the external engineering documentation which soon became an unworkable chaotic mess with band-aid on top of band-aid to make it work.

PLM & PDM Defined

The Data Management Mess

The Death of PLM

The following article is by far the most bizarre band-aid added to make MBD work. The software is now required by all Boeing suppliers. Why? Because the native Catia file cannot be trusted not to be corrupt.

Compare and Validation Programs?

Band-Aids for Self-Inflicted Wounds!

Corrupt 3D CAD Parts

Why MBE/MBD/PMI Will FAIL

* PMI vs AID (Associated Information Document)

Quoting Tools: CAD Dimensioning Another Band-Aid for MBE!

The Secret of Part Numbers

The ADCN (Advanced Drawing Change Notice) vs MBE

The Embedded Title Block! A PLM Solution! 

Onshape! A View from the Clouds

Onshape! The Party is over!

PTC Creo Totally Misunderstands MBD


* Solidworks Totally Misunderstands MBD

*
Solidworks: Engineering 4.0?

Can the 3D Model Be Used as the Design Authority?
 

If your company or customers have standardized on the MBE/PMI system, we can help you access PMI data from Solidworks, Creo, NX and Catia!

Free PMI Importer?

 


Here are other Viewpoints on the 3D CAD Industry 

3D CAD
Technology Applied

3D CAD
3D CAD Productivity

3D CAD
Techniques Defined


When the job has to get done!

Why TECH-NET Sells IronCAD and ZW3D

With 50 years of experience in engineering, 17 years in manual board design as a contract engineer, 35 years in 3D CAD as a designer, sales, support, training and providing engineering services, I have a high level of understanding of today's 3D CAD engineering world. For many it is in chaos. If you are having problems or just interested in this subject please feel free to call and we can discuss them. There are so many simpler solutions available that will save you time and money.

See you online.

Joe Brouwer
206-842-0360

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