Architectural line rendering

Is there a way to control the line thickness when rendering with Edge-setting on in Blender?

I’d like to have architectural drawings like images but the result is not so good. Mostly because small objects are too dense.

This is what I managed to do:
http://www.opendimension.org/blender3d/images/line_render_p.jpg
Bigger version

Tricks, anyone?

You can render the image larger and then scale it down to get thinner lines.

Yes, of course! Thanks!

I tried that and noticed that best results could be achieved by rendering large and NOT using antialiasing. Lines gets smooth when the image is scaled down.

Here is better version:
http://www.opendimension.org/blender3d/images/line_rende3_p.jpg
and bigger

BTW. Edge rendering is really fast in Blender