Bottle Opener- Udjat

prusaprinters

<p>This is a tool to help open PET-bottles. It was developed for a group school project at KTH Royal Institute of Technology in Stockholm, Sweden.</p><p>The name comes from the resemblance of the Egyptian hieroglyph, Udjat(Horus eye).</p><p>Print in two pieces for best results.</p><h3>Print Settings</h3><p><strong>Rafts:&nbsp;</strong></p><p>No</p><p><strong>Supports:</strong></p><p>No<br>&nbsp;</p><p><strong>Notes:&nbsp;</strong></p><p><strong>If you have flexible filament, print the model in two pieces.</strong> If you print in one filament hard plastic the bottle cap will probably slip.</p><p><strong>Print either:</strong></p><ul><li>Body_opener.stl - In hard plastic</li><li>Insert_opener.stl - In flexible plastic<br>Assemble <strong>or</strong></li><li>Openeronepiece.stl - In hard plastic</li></ul><h3>Design process</h3><p><strong>Background</strong></p><p>Many people may ask 'Why would anyone need help to open pet bottles?'.</p><p>It turns out that grip strength doesn't peak before your mid thirties. This means that the average female 20 year old has similar grip strength to that of a 80 year old male or a 55 year old female.</p><p><a href="http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0113637">Link to the study</a></p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/95618/rich_content/fcddbc3e-a6aa-4738-95df-451c390df935/image.png#%7B%22uuid%22%3A%228bddb8e3-d5da-48e9-b52e-c435c1bc89af%22%2C%22w%22%3A1521%2C%22h%22%3A862%7D"></figure><p>Graph from "Grip Strength across the Life Course: Normative Data from Twelve British Studies showing grip strength depending of age and sex".</p>