Side walls are laser cut in 3mm, mat, transparent perspex acrylic. The svg and PDF can be use with most laser cutter.
The side Perspex we are using is s030 polar white and the piece should be 300*600 mm if you want to use the PDF and lasser cut. A provider in london is www.hamaracrylic.co.uk/hamar_acrylic_fabrications.aspx