GD&T, or Geometric Dimensioning and Tolerancing, is a logical system of numbers, symbols and conventions applied to 2D drawings, either electronically or as blueprints. Have you ever used GD&T? What are your thoughts? Leave them in the comments below!
Extremely valuable. I have been a designer in SolidWorks for over 15 years, and was ignorant of how this worked; I knew intuitively about datums by way of design intent, but now I fully understand the basics of GD&T. Thank you for this primer.
@@starrapid Well then, I'm happy that I commented. I'm just a hobbyist playing around with a 3d printer, but I've learend so much from watching your videos. So thank you!
Thank you ! I subscribe to the 5 rules. Does this apply to bigger parts, say a frame of a bicycle made of tubes or in composites for instance ? Thank you again.
@@mohamadkhatib8624 HI by using only +/- dimensioning it is impossible to convey the design intent. In addition you are unable to establish the true relationship between critical to function features in relation to the matting features aka datums. This leads to a ton of manufacturing problems down stream. Like over toleranceing features, which drives up the cost. GD&T is a language and properly applied in addtion to being understood gives back tolerance to manufacturing. They what a machinist wants to hear.
@@lawrencestrickland9264 sounds great mr lawence we really should care about the function and relation between different feature .its great to have your update
I completely disagree that you generally only need 3 Datums. You did qualify your statement by saying "3 is enough for everything you have worked on." I work with all the world leaders in manufacturing and %80 of the drawings i work on have more than 3 datums. I believe that is a reckless statement. You are going to get some new inspector or machinist yelled at when they say that to a good engineer.
