QCAD Notes

I use a white background (Edit->Application Preferences->Background: #ffffff).

I avoid using the default layer (0) create layers for the various objects in my diagram.

I try to put each group on a separate layer, or layers, to make it easy to identify when copied to other diagrams.

Unless noted my drawings are 1:1

To change units:

(Simply change the default units for the drawing does rescale the drawing elements.)