Prusa Mini VOC/Carbon Filter Attachment

Filter attachment to reduce PLA/PETG smell
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updated February 16, 2025

Description

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  • The filter holder attaches to the blower fan on the Prusa Mini
  • Noticeably reduces odors from printing by recirculating the air through the filter
    • (My printer is inside a small space, not sure about bigger rooms)
  • Airflow doesn't seem to suffer (printed another filter holder with one attached and the bridges worked just as well)

 

Parts needed:

Print instructions:

  • Print oriented as in the STL
  • Supports only required on the build plate
    • Bridges seem to come out better when they are oriented in line with the airflow from the part cooler
    • Optionally the front and back bridge can be supported with painted support
  • PETG (recommended) and PLA should be fine

Installation/Assembly:

  • Slide filter into holder
  • Click the top cover into place
  • Insert the holder rotated at 45° with the mounting peg into the empty hole on the blower fan housing
  • Rotate in place and attach the optional M3 screw (hand tightening should be enough)

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