Theory into Practice, Build a book Practice Items

I needed to practice and work out how I could cut the slits and make it work and stand.
This was a case of trial and error to be honest and working out how small the cut would be. 

 Once I had worked out the size of cut it was really easy to pile on top of each other and carve through. I knew I couldn't do this on the final one because of the amount of damage it causes to the mount board. However it did work, and I have plenty of templates to use. I wanted to make sure the cuts are in the same place because they need to be able to stand as  a structure which does work.