Etui - Spectacle Case | living hinge | folding 3D-Print

Model Overview & Print Notes

Summary Super intuitive spectacle-cases This model doesn't need springs, active hinges, or magnets to work. Neither is it printed with flexible materials - just regular brittle PLA. Attention: Very easy to print To achieve this behavior, I applied an common engineering technique from wood-design. The "Living-Hinge" Cut Pattern. And it worked out like a charm. Print Settings Printer: Tiertime - Cetus3D <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div></p> <p class="detail-setting supports"><strong>Supports: </strong> <div><p>No</p></div></p> <p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0.3mm</p></div></p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>5-12%</p></div></p> <strong>Filament:</strong> www.dasfilament.de PLA Matt-White / Red / Ice-Blue <br> <p class="detail-setting notes"><strong>Notes: </strong> </p><div><p>Print one of each file.</p></div> Post-Printing Assembly <div><p>Just snap-fit the sides onto the intended slots on the wall. Secure where needed with some extra super-glue.</p><p>Closing mechanism is self-explanatory</p></div> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/15/c9/4b/55/d6/both.jpg"></p> How I Designed This Sheet-Metal and Bend-Stretching <div><p>I used Fusion360's Sheet-Metal Feature to model the case.</p><p>With the first protoypes, I realised, that PLA tends to extend its length by 10% when bend by 45deg using my living-hinge Design. This, of course, is reliant on my very own hinge cut layout-dimensions.</p><p>So I lowered the height of the bending-sections off the wall to be 90% of the original extend.</p></div>