Basic Symbols Used in Engineering Drawings. FredSWUG 6 Oct, 2017 01:18 PM Learn about the ways these common features are described in drawings. Counterbore Countersink Spotface Depth Diameter Radius. I should also mention that I did not create this course, I just found it online and thought it was pretty well done. ...
Jul 09, 2020 · Upright triangles with the point at the top sit on a strong base. Because strength usually represents male energy, it’s associated with fire and air elements and can be seen in those symbols created by alchemists. In contrast, an upside-down triangle represents female energy and is used in the symbols for water and earth, the two feminine elements.