What are the pros and cons of the gnomonic projection?

Answer 1

firstly i will list the pro's for orthographic drawings.

an orthographic drawing (if done correctly) can be used on a factory floor to create the product within a few hours of first inspection of drawing.

using the orthographic drawing techniques you can scale and design a product without the use of electrical technology. it is also good to use ortho's to show hidden details like the inside of a shelled out shape.

learning how to draw ortho's is a skill which is unparalleled in use in industry, not for the practical uses but the understanding of drawings is a skill which can be put to use in most engineering jobs involving the creation of a product which may have to be accurate within a 0.01mm tolerance.

con's

orthographic drawings done by hand can take even the most experienced of people hours to complete, due to the creation of computer aided design the need to create ortho's by hand has become obsolete.

any inaccuracies in a hand drawn ortho which are taken to factory can effect the quality or practicability of the design.

computer aided design has qualities which far outweigh hand drawn ortho's like they are more accurate and don't require the use of guidelines which may confuse those who aren't familiar with orthographic drawings.

Answer 2

Pros are that the projections latitude and longitude form a grid.

Con is that their are distortions.