Blender addon, that allows you to create dimensions, technical drawings and blueprints.

Create dimensions with mouse like in CAD programs. 

Create mesh lines from edges nondestructively.

Quick showcase:

Video tutorial:

Creation of dimensions has its own snap system, so you can snap properly to center of lines created by this addon.

You can setup camera to choosen paper size with render resolution according to selected DPI.

You can create several line types and several hatch types.