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What are Geodetic Datums
GD&T - Selecting Datum Features
What are Datums
Stop confusing datums, datum feature symbols, and datum targets
GD&T Understanding Datums
GD&T: Choosing Datums
Stop Confusing Datums & Projections! (GIS Basics)
Datums in GD&T
What is a Projection, a Datum, a PCS... Ahhh!!!
GD&T Datum Targets Introduction
Datums, Datum Features, and Datum Simulators - Oh My!
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Last Updated: September 28, 2026
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Summary
I am available to travel to your company and provide this GD&T training for your team, contact me at dean or ... In this video i'm going to chat and show you how a couple of different In this video we explain the basic concepts behind geodetic This video clears up confusion between Drawings available at: deanodell.com/?p=325 Reference: ASME Y14.5-2018 See page 70-147 Section 7. Ever wondered why Greenland looks bigger than Africa on some maps? It all comes down to the science of This video explains how maps are created by moving from the actual earth, to a 3D representation, and finally, to a 2D map. In today's Question Line Video, Jason uses the example of a cylindrical