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SUNLU Filament Dryer S1 Plus – built-in circulation fan, 3D printer filament dryer box

SUNLU ★ 3.8/5 · ItemOracle Score Budget

$38 USD
Price subject to change
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SUNLU Official Filament Dryer S1 Plus, Built-in Circulation Fan, Filament Dryer Box Storage Box for 3D Printer Filament 1.75 2.85 3.00, S1 Plus Blue Grey

SUNLU S1 Plus filament dryer box with built-in circulation fan. Helps reduce moisture in hygroscopic filaments to improve print quality. One customer notes effective moisture removal with visible humidity drop, though temperature control is limited

Highlights

  • circulation drying for filaments
  • moisture reduction with humidity awareness
  • compact filament storage integration

Pros

  • built-in circulation fan
  • moisture reduction for hygroscopic filaments
  • simple to use
  • includes storage box for filaments

Cons

  • temperature may only reach ~35 degrees
  • timer limits default to 6 hours
  • mixed feedback on value for money

Best For

  • drying PLA filaments
  • preparing hygroscopic filaments before printing
  • reducing moisture impact on prints
  • storing filament after drying
  • monitoring humidity during drying
  • using with flexible filaments

Features

  • Drying enclosure reduces moisture to prevent printing failures
  • Built-in circulation fan supports consistent drying for filaments
  • No assembly required; two-button operation for simple use
  • Enclosure aims to improve print quality and surface finish
  • Designed to handle 1.75, 2.85, and 3.00 mm filament sizes

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