Filament dryer extension for SilverCrest dehydrator

prusaprinters

<p>This is an extension piece for SilverCrest food dehydrator (SDA 350 A2) bought from Lidl Finland in 2019. Apparently this also works with a similar looking 2020 dehydrator model from Aldi Süd (Germany) according to <a href="https://www.prusaprinters.org/prints/31900-filament-dryer-extension-for-silvercrest-dehydrato/comments#comment-33836">a comment</a>.</p> <p>I made this so that I don't need to break the trays that were included with the unit to be able to fit a filament spool inside.</p> <p>This extends the vertical space available in the dehydrator for about 9.5 cm which should be enough space for even the widest 1 kg spools that I've seen. These should be stackable (but I've printed only one so far). The total Z height of the piece is 101 mm.</p> <p>The extension consists of 4 identical pieces that slide together. This is my own design but the connection mechanism was inspired by <a href="https://www.thingiverse.com/thing:3027142">https://www.thingiverse.com/thing:3027142</a> ("Filament Dryer Dehydrator Extension - Easy Print" by alexwhittemore).</p> <p>With my settings based on Pretty PLA v3 (<a href="https://prusaslicerprofiles.com/pretty-pla/">https://prusaslicerprofiles.com/pretty-pla/</a>) profile with small adjustments, one piece takes less than 4 hours to print on a MK3S with 0.4 mm nozzle using a layer height of 0.3 mm so it takes maybe 15-16 hours in total to print all 4 pieces. I printed them one by one to minimize risk but I didn't have any issues and you could fit all of the pieces at once on the build plate of MK3/MK3S.</p> <p>The model is designed to print upside down without any supports needed.</p> <h3>Print instructions</h3><p>I would recommend printing with a brim (I used 9 mm) since otherwise the touch area to the bed is very small and might not stick well enough.</p> <p>Please first print 2 of the test pieces (small model) to check that the connection mechanism is not too tight so you can slide the pieces together. Otherwise you might waste a lot of time and filament if you can't fit the big pieces together after printing. I can upload variations with bigger clearance in the connection mechanism if somebody needs it.</p> <p>Here are the most relevant PrusaSlicer settings that I used:</p> <ul> <li><strong>Layer height</strong>: 0.3 mm</li> <li><strong>First layer height</strong>: 0.2 mm</li> <li><strong>Perimeters</strong>: 3</li> <li><strong>Solid layers top</strong>: 6</li> <li><strong>Solid layers bottom</strong>: 3</li> <li><strong>Detect thin walls</strong>: enabled</li> <li><strong>Fill density</strong>: 10%</li> <li><strong>Fill pattern</strong>: Gyroid</li> <li><strong>Skirt loops</strong>: 0</li> <li><strong>Brim width</strong>: 9 mm</li> <li><strong>Supports</strong>: no</li> <li><strong>Extrusion width</strong>: 0.42 mm (all)</li> </ul> <p>Speeds:</p> <ul> <li><strong>Perimeters</strong>: 80</li> <li><strong>Small perimeters</strong>: 20</li> <li><strong>External perimeters</strong>: 40</li> <li><strong>Infill</strong>: 100</li> <li><strong>Solid infill</strong>: 79</li> <li><strong>Top solid infill</strong>: 40</li> <li><strong>Gap fill</strong>: 49</li> <li><strong>Travel</strong>: 120</li> <li><strong>First layer speed</strong>: 20</li> </ul>