【转帖】scaling center, dashed, phantom, and hidden lines in autocad

yang686526

scaling center, dashed, phantom, and hidden lines in autocad
this may be a very basic question, but what are the accepted standards for drawing center, dashed, phantom, and hidden lines?  for dashed and hidden lines, how long should the lines be and what should the gap between the lines be?  for center and hidden lines, how long should the long and short lines be and what should the gap between the lines be?  what rule of thumb should be used for establishing the linetype scale for these linetypes in autocad?  thank you very much for your responses.
try posting your question in the autocad forum
look at asme y14.2m-1992 for standard line definitions.
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