Solar battery charger case

prusaprinters

<p>This is a case for a solar battery charger. It can charge from USB or the Sun, and it delivers USB power when switched on. It is based on a set of parts from Adafruit:</p> <ul> <li>USB / DC / Solar Lithium Ion/Polymer charger - v2</li> <li>Medium 6V 2W Solar panel - 2.0 Watt</li> <li>Lithium Ion Battery Pack - 3.7V 6600mAh</li> <li>PowerBoost 500 Basic - 5V USB Boost @ 500mA from 1.8V+</li> <li><p>Breadboard-friendly SPDT Slide Switch<br/> It is also held together with M3 nuts and bolts, and I had to solder a different connector on the solar panel (not to mention solder together the parts inside).<br/> I usually tuck the charger into a pocket and pin the solar panel to the outside of my bag, so that it accumulates charge while I'm out in the Sun. The button was meant to be sewn onto the bag so that the panel could be looped over the button but for the moment I'm using safety pins.</p> <p>The battery is slightly big for the device, so I print it in PETG and then the springiness of the plastic keeps the battery from moving around. Other internal components are held by pegs.</p> </li> </ul> <h3>Print instructions</h3><h3>Category: Gadgets Print Settings</h3> <p><strong>Printer Brand:</strong> Prusa</p> <p><strong>Printer:</strong> <a href="http://amzn.to/2rqZ6Uo">i3 MK3</a></p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> Yes</p> <p><strong>Resolution:</strong> 0.15 mm</p> <p><strong>Infill:</strong> default</p> <p><strong>Filament:</strong> Generic PETG Translucent<br/> <strong>Notes:</strong></p> <p>The flanges that hold it together need supports to print. The hand design is not particularly apparent.</p>