Glasses Arm Repair Brace

prusaprinters

<p>I'd snapped one arm of my favorite sunglasses, but I had both pieces. The entire arm looked too finicky for me to attempt printing a replacement, so I just designed and printed a brace to hold the broken piece to the rest.</p> <p>The brace is basically a box, chamfered for comfort, thinnest on the side toward my face,</p> <p>I measured the width and height of the broken piece at the break, and guessed at a reasonable length.</p> <p>Issued under Gnu license v3 since the subroutine to make a chamfered cube, quoted in the OpenSCAD source code, was issued under that license.</p> <p>To use: set the width and height of the plastic cross section of your broken glasses arm in the Sunglasses Repair Brace.scad file.</p> <h3>Print instructions</h3><h3>Category: Replacement Parts 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> No</p> <p><strong>Resolution:</strong> 0.15mm. Standard 0.4mm nozzle</p> <p><strong>Infill:</strong> 100%</p> <p><strong>Filament:</strong> Monoprice PLA Black<br/> <strong>Notes:</strong></p> <p>Since layers are 0.15mm, but walls are 0.4 mm thick, I oriented the brace so the thin side, the side next to my face, is down for slicing.</p> <p>Print time was 7 minutes.</p> <h3> Post-Printing</h3> <p>Since I hadn't allowed any clearance when I entered the width and height, the brace was initially too tight for me to be able to insert the sunglasses arm pieces.</p> <p>I partially inserted one end, then used it as handle to rest the pla brace on the printer bed as I heated the bed to 100°.</p> <p>This made the PLA of the brace soft enough that I could insert both pieces of the sunglasses arm.</p> <p>I finished off with a drop of superglue at each end of the brace to bond everything together.</p>