Drafting - general

GENERAL

- draw efficient:

    - keep drawing area compact (draw items close together)
    - use blocks only when it is useful
    - keep file size small
    - use as few viewports as possible
    - avoid / remove undesired layers
    - avoid / remove undesired text and dimension styles
    - avoid / remove undesired line types

- paperspace:

    - no double lines viewports