A good way to improve your drawing skills with QCAD is indeed just by drawing.
For those of you who are interested, I have set a challenge as follows - it is of course just for fun, but hopefully it will help you to explore different tools and aspects of QCAD that you may not ordinarily use . This challenge will get you thinking about using construction lines a lot and if you attempt the whole challenge then it will get you thinking about the 'isometric' projection possibilities of QCAD too.
The drawing challenge is of a masonry stonework construction.
Some hints to get you started:
Set up layers
Use construction lines
Rotate Two tool
Isometric projection tool
Isometric View - grid options
Please feel free to post finished drawings here too and share any tips and tricks that you find along the way, which may help others!
1. Part finished drawing dxf - which you will need to complete.
2. This is what the finished 'Front' view should look like.
3. This is what an 'Isometric' projection of the front view should look like - you will need to finish and use the front view for this.