Sunlu Filadryer S1 ventilator&dessicant holder mod for narrow spolls or full-full spools

prusaprinters

<p>After studing and testing various ventilator solutions for Sunlu S1 I settled to Cobra Di by <strong>Hemi345</strong>, as it provided a nice integration of a silent ventilator and an integrated dessicant holder. &nbsp;I initially modified its dessicant entry hole allow a bit easier use of dessicant bags in addition to loose grains. &nbsp;Only when in use, I found out that the dessicant holder interfered with narrow 200m spools and very full wide spools (e.g. Amazon spools), particularly when running my spring autorewinder, that raises the spoll a bit. &nbsp;This is a problem for me as the specialty filaments needing the drybox the most come often in narrower spools.&nbsp;</p><p>So, I modified the holder to allow unrestricted space for 200mm spools. At the same time I changed the dessicant bag loading arrangement from a small hole to a wide lid that opens the whole bottom perimeter of the dessicant compartment. &nbsp;The lid is a thin version of original bottom. The orinal size dessicant box lid is still available as an option. The lid is locked in place with a piece of filament pushed through the hole at the top.</p><p>This mod design is a a bit fast and dirty, meaning that the print of the body requires supports, consuming 7..8g of extra filament, but it worked relatively well for me. &nbsp;Printed in clear PETG by Amazon, using 0.4 mm nozzle and 0.3 mm layers with 2 walls and very low supports density.</p><p>.3mf files included as an indication of the supports and the Mickey mouse ears that I used as an insurance of a good adherence to the printing bed.&nbsp;</p><p>This mod requires the attachment bracket and wire guiding clip from the original model</p><p>I used <strong>flackenstein</strong>’s solution <a href="https://www.printables.com/model/73014-sunlu-filament-dryer-mod">https://www.printables.com/model/73014-sunlu-filament-dryer-mod</a> to tap to the S1 controller board to control the fan rather than using an additional temperature switch.&nbsp;</p><p>&nbsp;</p><p>&nbsp;</p>