Pentagon Lamp Shades

prusaprinters

<p>Got an old ceiling lamp and missing some proper design shades? You can print them!</p> <p>The design consists of 5 identical pentagon shades, which form a pentagon perimeter when completed. They can be easily modified and cut into the desired height. In case you need a larger length than your printer can produce, there is an extension part which can be glued to the base part.</p> <ul> <li>Can be used in variable configurations as a single pentagonal shade up to a configuration of five (on the photo).</li> <li>There is also an alternative shade with regular pentagonal shape especially intended for 1 or more bulbs in line.</li> <li>No supports required</li> <li>The print on the photo is with E27 7W LED light bulbs and white PLA filament</li> <li>The wall thickness of the shade is 0.6 mm which seems to be reasonably translucent (it was measured it attenuates the emitted light flux to around 1/3).</li> <li>For more heat emitting light sources, a higher temperature-resistant filament is needed</li> </ul> <p>Authors: Michal Dvorak (3D model) + Tomas Kliegr (printing)</p> <p>The 3D model was created using Autodesk Fusion 360.</p> <h3>Print instructions</h3><p><strong>Instructions for modifications</strong></p> <ul> <li>Height adjustments can be made directly in slicing software </li> <li>In PrusaSlicer: Object manipulation -&gt; Unlock Scale factors -&gt; Change Z.</li> <li>The step above will affect also the thickness of the base plate. Desired thickness can be obtained by using the "Cut" function. </li> </ul> <p><strong>Instructions for printing</strong></p> <ul> <li>Prints well using PrusaSlicer default profile 0.20mm SPEED with 0.4mm nozzle</li> <li>Prints also well using twice the speed used in the default profile (tested on Prusa MINI)</li> </ul> <p><strong>Print files</strong></p> <ul> <li>Shade-single-tall.stl : Tall single shade (21 cm) taking advantage of maximum printing height of MK3s </li> <li>Shade-single-tall_mini.stl : Tall single shade (18 cm) taking advantage of maximum printing height of PRUSA Minii </li> <li>Shade-single-short.stl (13.5 cm): Minimum height covering E27 socket (6cm) and a typical light bulb (7cm measured without socket). This file is also suitable for height adjustments (see below). The filament used to print this part is about 73g. </li> <li>Shade-extension.stl (10.6 cm incl. rim). The extension mounts to any of the Shade-single files.</li> <li>Shade-pentagon-regular.stl (18 cm). A regular pentagon shade, which can be used in other configuration with 1+ lamps.</li> </ul>