25 Dec 2014: Second revision 3D printed prototype casework

After creating a first revision that could be made from laminates a more complex version that could be directly assembled as a 3D printed case was started. To save plastic a first revision 25mm by 25mm version was made:

These three parts are designed to capture the touch panel and then interlock to complete the case:

On the interior of the bottom part are small indentations that fit into recesses of the inner part. However when a larger version was attempted it was discovered that the inner part bends and doesn't catch. Some interior clips were therefore added into which the inner part slots and keeps the two halves close together. Experimentation continues - and may need self-tapping screws - as the 3D printed plastic is being kept very thin (only 2 layers the wall is turning out to be 1mm thickness)