Alfawise U20 Precise Fan Duct

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The standard ventilation duct provided by the Alfawise u30, u20, and u10 delivers an insufficient and scattered air flow. With this ventilation duct, it's possible to increase airflow and focus it on a point very close to the extrusion zone. To prevent the air outlet hole from touching the bed due to printing tolerances, it may be necessary to lightly sand the top and/or bottom of the moving part of the fan duct. As an added value, the air outlet can be adjusted in height and rotated to achieve an optimal result. This is achieved with two pieces: the first piece that is fixed where the old pipe was (AU20_DUCT_V1_2OF2.STL) and the second moving part that can be moved vertically and radially (AU20_DUCT_V1_1OF2.STL). If it's required to increase the area of impact of the air flow, the air outlet can be trimmed to make the largest hole. Due to printing tolerances, the following adjustments may have to be made to the joining of both parts: - If it's hard to fit them: it's recommended to oil the parts that make contact with each other, to facilitate their movement without breaking them (since they've been printed with thin thicknesses to make them as light as possible). - If they're very loose: it's recommended to place insulating tape around the perimeter so that the joint is sufficiently tight. - For the same reason, the screw holes are M3 but may have to be enlarged. Design: https://www.youtube.com/watch?v=aTw2WTuHUCY Work: https://www.youtube.com/watch?v=-kVkKolXyxc