Filament dryer extension for Elechomes Dehydrator

prusaprinters

<p>This is an extension for the Elechomes 6 tray food dehydrator from Amazon so that filament spools can be dried without breaking the oem trays.</p> <p>I changed Haprog's Fusion360 file to shrink it to the size of my dehydrator, and parameterized it some to make it easier to adjust.</p> <p>Outer diameter of lower ring: 268mm<br/> Outer diameter of upper ring: 263mm<br/> Width of rings: 2.2mm</p> <p>I printed it with the existing lower lip height of 10mm, but bumped the upper lip to 16mm. I think I will bump lower_lip_height to 15mm if I print it again but a perfect seal isn't really required.</p> <p>Two 1KG spools fit if they are "regular" width(&lt;68mm), so there shouldn't be any problems with even the widest of spools to at least get 1 in there. The extension meshes well with the Elechomes trays, so they should stack nicely as well.</p> <p>4 identical pieces slide together to make a hoop, with a lower ring to fit into the base or tray, and a smaller top ring to lock into the lid or tray above it.</p> <p>I might be using it upside-down from its original design, but it works perfectly for the Elechomes with the smaller "ring" on top, which is also the orientation for printing.</p> <h3>Print instructions</h3><p>I also recommend printing with a brim, I used 8mm because it made a solid brim between the 4 parts. Using transparent PETG I could see some release from the print bed 1-2mm out from the ends of the part, but it stayed securely in place and was easy to clean up with a deburring tool</p> <p>You should print 2 of the test pieces to make sure your printer/filament settings let them slide together correctly, if not you can increase the "slot_clearance" parameter, but I didn't need to.</p> <p>Haprog's connector design is great, and the slide pin works fine without support, it started in mid-air but came together fine on all 4 for me without needing cleanup.</p> <p>Here are the most relevant PrusaSlicer settings that I used, but</p> <p>Layer height: 0.3 mm</p> <ul> <li>First layer height: 0.2 mm</li> <li>Perimeters: 2</li> <li>Solid layers top: 6</li> <li>Solid layers bottom: 3</li> <li>Detect thin walls: enabled</li> <li>Fill density: 15%</li> <li>Fill pattern: Retcilinear</li> <li>Skirt loops: 0</li> <li>Brim width: 8 mm</li> <li>Supports: no</li> <li>Extrusion width: 0.42 mm (all)</li> </ul><p>Speeds:</p> <ul> <li>Perimeters: 80</li> <li>Small perimeters: 25</li> <li>External perimeters: 45</li> <li>Infill: 80</li> <li>Solid infill: 80</li> <li>Top solid infill: 50</li> <li>Gap fill: 50</li> <li>Travel: 180</li> <li>First layer speed: 20</li> </ul><p>Extrusion Widths:</p> <ul> <li>0.4mm nozzle</li> <li>Default Extrusion Width: 0.5mm</li> <li>First Layer: 0.42mm</li> <li>Perimeters: 0.5mm</li> <li>External Perimeters: 0.45mm</li> <li>Infill: 0.6mm</li> <li>Infill/Perimeters Overlap: 30%</li> </ul><p>Filament Settings:</p> <ul> <li>Nozzle: 240C</li> <li>Bed: First Layer 85C, Other 90C</li> <li>Max Volumetric Speed: 6mm3/s</li> </ul>