This week we started on a new prototype of our product, the Accordio solar powered radio. The accordion itself is now constructed of a more rigid material, and we are using a new flexible tape to attach its segments. The assembly has more spring and holds its own weight with ease.
On the new prototype, we have also run copper tape to connect our solar cells to the electronics. This week we prepared, tested and installed our radio electronics–so the radio portion of our product is now functioning.
The majority of the prototype has already been assembled. Before we put all the parts together we plan to 3D print parts to use a new volume known, and the frequency slider assembly. The slider assembly will help us translate the sliding motion of a knob to adjust the rotation frequency dial (on the electronics board).
SolidWorks modelling is underway, and we will be submitted our parts for printing shortly.
Acrylic Sheet, 0.08″
Volume Control (Also On/Off):
Acrylic sheet, 0.08“
Same as Volume Control
Cardboard (~3/4 mm) (NOT corrugated board)
Protective Glossy Finish: Blair Clear Finish Spray – Matte and Gloss
“Creates clear matte and gloss finish. Super hard permanent barrier. Protects against stains, moisture, and environmental pollutants. Use on paper, photographs, wood, ceramics, plaster and leather. 11.75 oz. spray can.“ – $11
OR an elastomeric roof coating painted on to the cardboard
Glossy protective coating
New drawings that incorporate our design changes (accordion is no longer hinged on one side).
We found that the body materials and construction are working well. For our updated physical prototype, we have added a slider to select frequency (users can use a pencil to write names of stations along it), inset the accordion so that it fits inside the case when closed, and attached fasteners that hold the radio closed when it is not charging.
Our final prototype will look very similar to this medium fidelity iteration. Next steps include mounting solar panels on the accordion and implementing the radio technology.