Enclosure

All the pieces of the enclosure were made using a CNC machine. The materials used are foam insulation, plywood, and wire mesh. The enclosure is made of three parts: the core, the shell, and the frame.

*Note: All dimensions in inches 

Core: Foam Insulation

3/4" Foam insulation was used to make the core of the environment box. A double rabbet joint was used to minimize the amount of air that passes through the edges of the material. Dedicated spaces for the sensor, HOBO, and acrylic viewport were carved out of the foam. Three holes were on the back piece to create pressure differential for the second part of the experiment.

Plywood

The shell is made out of plywood. Its purpose is to protect the foam. A space for the acrylic viewport was carved out. 

*Note: The three holes were drilled afterwards but could be incorporated in the original CNC file

Desiccant Frame

The frame that holds the desiccant for the second part of the experiment was made using three layers of foam. The outermost and middle layers are the same. The innermost layer is cut so that it can be inserted into the opening to enclose the box. 
The wire mesh is sandwiched between the middle layer and the outer layers. The desiccant sits inside the opening of the middle layer.