Class “A” Surfacing – Fit Curves – Alias

Learning Alias sponsors the Education of children in Nepal. This is Deepana and we need to raise money to put her through Nursing College in Kathmandu. Learning Alias Blog is a free service, but if you would like to show your appreciation, please make a small donation. 100% of your money will go directly to pay Deepana’s college fees. Please donate just 5 Eur/6 USD. Why not take 2 min to do it now? Thank You, graham bullock.

I would like to thank all my readers who have made many small but important donations to help Deepana. The current total we are aiming for to Pay for her 3 year State Nursing course is 4,000€. Please donate something even if it’s just 5 Euros/6 USD. It all helps. Thank you, g.

My New Website is now live!

I am a top flight Alias Trainer/Modeler, specializing in taking students who are either currently studying or who have left college/university and want to learn the skills they need to reach Alias Automotive Entry Level. I offer the best value Alias training deal out there!

Fees: Accsess to all my 200+ videos,

including the complete Audi A5 Sportback, my Virrage concept car and many other projects

228$ /167 Euros per month

Working on a small budget? No problem! Ask about the 137 USD./100 Euro per month economy package

Student Discounts up to 50%: Discounts are available for students enrolled in full-time education. Price on application.

Fees include regular feedback on your work with comments, tips and advice from me

www.learningalias.co.uk

or you can apply for a place with me as a One on One student,

which means a bigger investment of 339$ / 250 Euros pcm. but once in an Alias modeling job you will get back what you invested many times over and be able to work anywhere in the world
I can only take a maximum of 5 students at any one time. I tech all levels right up to Post Graduates and Alias modelers in their first year in Industry. I have never had a private student fail to get an Alias Automotive job (Companies include GM, Lotus, Opel, Audi, Volvo, Fiat, Seat, Maseratti etc. )

If you wish to apply for a place, please email me with all your details.

USA:

If you are in the USA, just register and login, then go to Profile and you can pay your subscription with your US credit card. Absolutely no extra charges for currency conversion.

Kind Regards

graham bullock B.Ed. Des & Tech.

Class “A” Surfacing in Alias – Fitting Curves to Scan and X-Sec Data


Pictured below is an Audi A5 Sportback built by one of my students who is now a Digital Sculptor for GM.

Full HD video, just click the picture below

I am now putting some of my tutorials on YouTube, so whilst you’re there you may wish to check them out. There’s a full tutorial on how to create a Ball Corner to Class A Surfacing, Catia V5 spec.

 

how to build a car

You can now watch ALL my Video Tutorials on a state of the art, purpose built website.

Click Here for Videos

See just how quickly you can learn Automotive Modeling, with a Pro. Alias Trainer to help you

NURBS FROM MESH VIDEO click here

For student’s who have the objective of finding a CAD job in the near future, I still teach One to One students and all of these students get Automotive Modeling or Design/Modeling jobs, so it’s a great investment to make.

Check-Out my Customer Feedback,

Many of my students make it to the top and succeed in becoming pro. Alias Digital Modelers. The hourly rate is very high and there are vacancies in UK. France, Germany, USA, Brazil etc.

Go to Learning Alias

Over 100 videos on many, many aspects of Learning Pro. Alias

I show you how to build a Complete Audi A5 Sportback (ext.) . Over 50 Videos on that alone !

www.learningalias.co.uk

Fit_Crvs_1

This pic. shows how we Fit Curves to X-Sec Data and Scan Data,

I use the Fit Crv Control in conjunction with the Info. Window to find out details about my fit crvs. e.g. if you look at the top RH corner of the screen you will see in black that the max. dev. of this curve is 0.008mm
Internal_G4

G4 Curvature Continuity

This is G4 curvature. I have built 2 surfaces with deg. 3 crvs. to give me the least number of CV’s to wrestle with. This is a demo. and I usually have to work with say deg. 5,1. which means more Cv’s.

This example is G4, which is achieved by aligning 4 rows of Cv’s. An experienced Class “A” modeller will determine this simply by looking at the Curvature Quills.

When I built the surfs. they were not Class “A” , even though I had these nice quills on the surface boundaries. To get the Class “A” quality often we have to adjust the surface internally too

I have just show 1 internal Comb, but if I really wanted a “Perfect ” surf. I would use several

I use the x-sec tool to put a central data crv. in and then projected it onto my surfs. using Proj. Normal with tols. set to 0.001mm

I was then able to delete the x-sec data crv and put a Crvtr. Quill on the COS I had projected

NEXT I used MoveCV tool step size 0.001 to pull internal Cv’s until my Internal Comb matched the Boundary Comb

I don’t have time to tell you more at the moment, but as soon as I come up for air, I will write a post giving more info.

cheers

graham

Leave a Reply

Your email address will not be published. Required fields are marked *