After the prototyping stage of the concept, I have begun to make my hard drives for real. This will involve five weeks of good 'ol hard work, but I'm sure the results will be great! I've set up another blog on the subject of a step by step guide on how to make them - this is not only a required element of the module, but it will help future students with certain manufacturing processes.
The link is:
p.s. since it is the start of the process, there's not much on it, but I'll keep adding to it over the weeks.