Detail Design

During the Detail Design week we determined the exact details that were left unfinished during the specifications process. For example, we created size and weight estimates: The device will be 20cm by 12 cm by 10 cm, enough to hold 4 rows of 5 tubes each, each tube 20cm tall and capable of holding 10 cubic 2cm boxes in a stack. This was the ideal set of dimensions for minimizing size while setting aside enough space for the pills and taking into consideration the limits of the constant force spring's extension. In this manner, we also determined in detail all other aspects of the device, like weight and cost.

We finalized the reloading mechanism as well. It was decided that magnets below each constant force spring and an electromagnet that could be turned on and off could be used for reloading. When the physician presses the reload button and enters the necessary code, the electromagnet will activate, attracting all the bar magnets to unwind all the springs. The physician can then unlock, open, and reload the device. When done, the physician can again press the reload button to deactivate the electromagnet.

Since last week, we changed our minds about the cell-phone like sliding technology due to the size and bulk of the device.