IGETIT has some simple tutorials.
Perhaps your local community college?
thanks Scott, i checked and they do not. but thanks for the input
thanks Anna, i know how to perform a google search i was looking for suggestions from the community, perhaps a particular source that they had success with.
thanks for the input
Not knowing where you are located, the internet is your friend here. Google it on Bing.
First thing to know about GD&T is that the use is to convey the actual function of the part.
Second thing to know is that you must minimize the use of GD&T.
Remember, you are trying to communicate while optimizing the cost of manufacturing.
Edit: If you are anywhere near a technical college (drafting/CAD programs) head over to their library. You'll probably find a text on the subject.
Did you seriously just say "Google it on Bing"?
The nerd in me just fell over laughing.
I'm not picking on you.....I just thought it was funny.
Here is the book I have - it's including almost everything you need to know about GDT
thank you Christian
Ford GD&T Pocket Guide
Here is the Ford GD&T Pocket Guide PDF...
If you’re looking for some really good material, look upJames D Meadows. http://www.geotolmeadows.com/
I attended two of his classes on GD&T and found themmuch better than the online material.
Here are a few items I have collected over the years I use as reference. I recommend the color chart as a good quick reference to be hung on the wall.
Honestly, I would look for a training class. Or sit yourself next to a quality engineer that is inspecting parts and ask him a heck of a lot of questions.
I have seen GD&T butchered and read incorrectly so many times, and the main reason is that many people believe that they can train themselves in it (many people can, but only with a lot of application and study). If you are going to be putting GD&T on a print that is going to be manufactured by someone, then it is a good idea that a training course be had by all involved.
Our company hired this group AGI Leaders in GD&T to train Engineering as well as Quality and Manufacturing Departments. It was a three day class. They are thorough and definitely know what they are doing. They offer online training as well. The most helpful thing we did was have follow-up sessions after the classes weekly for a few months to make it stick.
The book I reference most often is still ASME Y14.5.
Another option is to find an inspection specialist or inspection engineer (QA) that has dealt with inspecting automotive parts. They always have a good understanding and can explain and/or show you.
One important thing we as designers/detailers/engineers must always remember. The drawing is a "Quality Assurance Document". We are describing what the finished product is to look like and be inspected to. We are in a sense inspection specialists in a limited sense of the word. We need to tell the inspecting agent/agency what is important as a feature(s) and what else it relates to on the part (Parent/Child kind of aspect.).
As for looking up online, This is great if you already have a basic understanding of GD&T, remember. GD&T is a way to sinply describe the important feature, the tolerance or control of the feature to guarantee the fit up to mating parts.
thank you all for the input
ASME Y14.5. Many have tried to explain it, but it explains itself. It is GD&T.
Tec-ease, is a pretty good source. i am going thru a class right now and we are using the Pocket Guide.
GD&T | Geometric Dimensioning and Tolerancing | GD&T Training | y14.5 Standard | GD&T Software
also have a free App that's not half bad
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