Wednesday, October 04, 2006

What is A Class Surfacing

A-Class surfacing is defined as these two major points
1 lightly created geometry and that the geometry is built correctly.
2 light reflections are reflecting in a desirable way. i.e. if g2 is required then the light reflects in a g2 way.

A Class surfaceses are those aesthetic free form surfaces, which are visible to us (interior/exterior), having an optimal aesthetic shape and high surface quality.

Mathematically class A surface are those surfaces which are curvature continuous while providing the simplest mathematical representation needed for the desired shape/form and does not have any undesirable waviness. < this waviness is found with a goussian anaylisys.

Curvature continuity: It is the continuity between the surfaces sharing the same boundary. Curvature continuity means that at each point of each surface along the common boundary has the same radius of curvature.

+Compare G0
positional conections. Not tangen but touching.

+Compare G1
simply tangent. The surfaces in this example are tangent, the curve plot is not tangent. This line can not be broken down to a more simple curve therefore it is not curvature continuous or G2. You can not take an integral at the intersection of the curve as it crosses to the other surface.

curvature continuous. When a curve plot is tangent. The equation of the curve plot can be broken down into a more simple curve by taking an integral. ie. calculus

five ways to determine g2 continuity.
1. Evaluate with your eyes the light reflections
2. Evaluate the math using Calculus (if you can take an inergral at a curve that crosses a surface intersection then there might be g2 continuity)
3. Look at the curve plot in either Pro/E or Alias
4. Spans or CV's line up in Alias
5. zebra stripes

Some people will use a Gaussian analysis incorrectly. In this tool G does refer to that specific mathematician however the standard Gaussian analysis refers to concave vs convex. ie. when light reflects back to they eye.

A class surfacing workshop by Design engine education in Chicago

Aid Young Mechanical Engineers with Training:

1) To help young engineers who have been out of engineering school already at least one year and who have not yet got a job working as an engineer
2) To help recent mechanical engineering graduates get a job
3) To encourage councilors to utilize our assistance with enabling young engineers gain employment
4) To help young mechanical engineers get a higher wage on their first engineering job

Pro/E Training to young Mechanical Engineers:

DESIN-ENGINE | EDUCATION is where young engineers go for specific experience with 3D Solid Modeling, namely Pro/ENGINEER. Our famous three week compressive class teaches young engineers to be experts at more than one mode of Pro/ENGINEER. They can appear more experienced that already working engineers who have not yet learned aspects like Pro/SURFACE, ISDX, Pro/MECHANICA, Pro/MECHANISM or “top down design”. These are the tools that pay big money and imply you have over 5 years experience in the field. The first week is a comprehensive effort to nail down the basics of Pro/ENGINEER, focusing the last day on how to modify other engineer’s parts.The second week focuses on different extensions of Pro/E. Extensions like Pro/Sheetmetal used on John Deere cabs. Mechanism for making moving linkages. Routing Cables like that used for gas lines on Caterpillar tractors or wiring harness for a Cummins engine or wires inside a cell phone. The third week will focus on Surfacing; ergonomic and styled forms like that you find inside cars, seats or styled forms found on products on the shelf at Target. Lastly a serious look at plastics as related to tools inside Pro/ENGINEER
that enable engineers to speak intelligently during interviews about plastic part design and all of the above topics. Bottom line is that by focusing the compressive training on real world problems, we help you gain what looks like work experience to potential hiring managers.


We are hands down, the world leader in delivering high-impact courses for 3D Professionals: Industrial Designers, Mechanical Engineers, Draftsman, Mechanics mainly because what we do is so visually and metal engaging. Basically, the projects are fun. By focusing on solving a problem in design or engineering we found young engineers learn better and faster by first being engaged by a product scope. "We don't just teach the software, we teach design and engineering and choose to use Pro/ENGINEER to do it because that is where the jobs are."

We have a database of over 10 thousand contacts at companies like Caterpillar, John Deere and Military defense contractors that need Pro/ENGINEER users. If we can train young engineers on Pro/ENGINEER at the level we aim to accomplish, these manufacturers will hire them! We have strong relationships with over 300 contract agencies that call for college graduates that took our three week comprehensive as a post graduate workshop.

These online resumes are viewed by hiring managers Look for ‘websume’

Our specialized and focused Pro/E courses are offered throughout the year. Design Engine Education instructors are flexible to accommodate by offering the three week compressive workshops each month typically starting the first Monday of each month. We encourage you to tour our Chicago lofted state-of-the-art training center and meet our world-renowned instructors. We have a proven track record for training over 1000 young engineers and designers that are now working at Motorola, Caterpillar, John Deere, MASCO, Harley Davidson, and NASA.

Contact David Mazovick, our Training Coordinator or fill out our online form telling us about yourself. Stop into our Chicago training office on the weekend with friends or family to visit. Inquire over the phone with any questions, concerns, or to speak to an instructor, to customize a workshop, or to speak to other young engineer past references. 312.226.8339

Review our website carefully. There is a lot of information here. Specifically the three week comprehensive workshop website.
This is the link to the comprehensive Pro/ENGINEER training workshop. Look over the website with others and get opinions from peers and friends after speaking to others who like you just graduated from Engineering school took our class and got a job at a major manufacture.

Training: The Students and relative skills gained from the 'Three Week Comprehensive' Pro/ENGINEER training course merited Peoria's Caterpillar to hire every single Degreed or non Degreed Engineer that is available to go to Peoria. If you are interested in taking our most popular course the 'Three week Pro/ENGINEER comprehensive' or going to work for Caterpillar in Peoria, call to speak to the instructor or call for references of past students.

Wednesday, September 13, 2006

Learning MAYA, Alias, and Pro/E together

There are many programs available to help someone get a product from an idea to reality. From MAYA, Alias, Unigraphics, Solidworks and Pro/Engineer Wildfire. Learning to use the strengths of each program can be a lot of fun and help get projects to run quick and easy from a dream to a product in your hands. We offer mnay classes and can help some one learn how to move from one program to another. Taking a free form part modeled in Alias and bringing it into Pro/Engineer to be placed in a working linkage system works well. Afterwords, you can render the parts in MAYA to make them look real, and then use Photoshop or something else to place those renderings in an enviroment to show to possible investors or others who might want to see your work. If learning some of these techniques is something you may be interested in, please let us here at know and we'd be happy to work with you. Thanks for your time.

Saturday, September 09, 2006

Learning Pro/E

Lots of people want to know the best way to learn Pro/E. There are some ways that are more successful than others. Anyone can read through a book and mimic tutorials, but that will never get them to the range of "advanced to expert" users. Through the last few years, I've payed attention to those of my sudents who have excelled faster than others, noticed a few things and applied them to my classes;

1 The students who have excelled the fastest were the ones that were allowed to struggle. Due to our class size of around 4 students per instructor, there is always some one ready and waiting to assist. The best way for this to be leveraged to the student's advantage is let them struggle right up to the point of frusteration, and then help them just before they get upset. This way, when they figure things out on their own, it makes that small victory so much sweeter! However, it is important to not let the students get frusterated because their learning curve drops to zero when they are not having fun. This requires a watchful and attentive eye from the instructor with out hovering over the student and making them uncomfortable.

2 Having fun keeps students excited and on task. Letting students model objects they want to makes sure they are enjoying what they are doing and makes sure our school is not just feeding them canned tutorials.

3 Healthy competition between students keeps them learning at a fast rate. Getting the students to race through projects while helping each other out is fantastic for fast learning and having the material stick in their heads. Teaching each other tricks and working together to trouble shoot problems really helps the learning process.

Those are some of the principals that Design Engine Education uses to help us push our students to be the best. There are more specfic things as well, such as the progresion of learning the program, that Design Engine uses to teach Pro/E. Stop on by to learn with us! Check our website at


Tuesday, September 05, 2006

Pro/E Training Chicago

I manage a company in Chicago that specializes in "Product Design Training" The tool that we use most often to teach this is Pro/Engineer. We can also teach product design with other tools like Alias, SolidWorks and Rhino. Many of our students like to learn useing Pro/E because it makes them very marketable, as lots of companies use Pro/E and there is a large demand for it. Many of our Industrial Design students come here to learn usign Alias. We also have a large Corporate client base that comes to us for training on these software packages. Check out our website at: to see if we can do anything for you.