Finally figured how to make my Tortoise table a Closed Chamber

Hi All,

Over the weekend, I finally worked out how to make my tortoise table a closed chamber.

Please feel free to critic, so that I can get it right.

I found some pieces of wood in my shed that I used on the side, and I had a few Cake boards, from my childrens various birthday parties which I kept over the years. The wood has been put on the front and the cake boards have been put on top with the foil side facing into the chamber.

Then the places where there are gaps I have taped...

Finally figured how to make my Tortoise table a Closed Chamber