Tiny, robust useless box!

prusaprinters

<p>This build uses cheap standard components; design was done from scratch with two main targets:</p> <ul> <li>robust operation =&gt; 3mm wall thickness</li> <li><p>easy, fast printing =&gt; small overall size, minimum support requirements Components needed:</p> </li> <li><p>Arduino nano 168, 5V</p> </li> <li>9g standard tower servo</li> <li>10k resistor</li> <li>on / off switch, 3A 125V, 5x8 housing</li> <li>USB cable</li> <li>some super glue to mount printed arm to servo arm</li> <li>4 nuts M3</li> <li>2x M3x12 used as a hinge for the lid</li> <li>2x M3x16 to close the box</li> <li>optional: 1000yF electrolytic capacitor (when servo moves fast, Arduino might crash without it due to high peak current requirements; in case needed, just add it in parallel to Servo power cables)</li> <li><p>about 50g of filament at 25% infill Before you ask:<br/> Schematic and Arduino code were taken from here; no need to reinvent the wheel;-)</p> <p><a href="https://www.instructables.com/id/Arduino-Most-Useless-Machine-Ever-project/">https://www.instructables.com/id/Arduino-Most-Useless-Machine-Ever-project/</a></p> <p>The box will take everything inside; takes some patience, but it works!<br/> Power is brought to the circuit by a USB cable. I cut it off an old mouse and soldered it directly to Vin of the Arduino.</p> <p>Print time in total is a little less than 4 hours on my Anet A8; only the cover will need a little support when printing for the recess of the lid.<br/> Tolerances are easily meet; I assembled mine right off the printer - no grinding or drilling.</p> <p>Little demo:<br/> <figure class="media"> <oembed url="https://youtu.be/f6OEhEwtJiM"></oembed> </figure> </p> <h3>Print Settings</h3> </li> </ul> <p><strong>Printer Brand:</strong></p> <p>Anet</p> <p><p class="detail-setting printer"><strong>Printer: </strong> <div><p>A8</p></div><strong>Rafts:</strong></p> <p>No</p> <p><p class="detail-setting supports"><strong>Supports: </strong> <div><p>Yes</p></div><strong>Resolution:</strong></p> <p>0.24</p> <p><p class="detail-setting infill"><strong>Infill: </strong> <div><p>25%</p></div><br/> <strong>Filament:</strong><br/> None PLA Black <br/> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Supports only needed for cover; touching build plate is sufficient</p></div></p> </p></p></p> Category: DIY