MK4 Hotend Fan Shield - eliminates turbulence / drafts at the nozzle caused by the hotend fan - Fan shroud - REMIX of the Remix -> V4 3D model thumbnail

MK4 Hotend Fan Shield - eliminates turbulence / drafts at the nozzle caused by the hotend fan - Fan shroud - REMIX of the Remix -> V4

by daytrader · via Printables
FormatSTL
CategoryArt
LicenseCC BY-NC-SA
Triangles4.3k
UploadedMar 15, 2024
⬇ 175 downloads ❤ 37 likes 👁 1.0k views

Description

Final V4 slim design: Clip-on mounting Shroud No airflow restriction Easy on / off without removing screws No supports needed Smooth bottom outer 0.2 skirt for better bed adhesion same angle as MK4 fan holder only 2.8g / light weight For my warping tests this model was used: https://www.printables.com/de/model/568748-asa-warping-test-for-mk4/files in combination with my Extruder Fan Duct: https://www.printables.com/de/model/692672-mk4-extruder-fan-duct-tweaked-version Filament was extrudr ASA DuraPro (245 / 110 degrees) → Warping was reduced and dimension deviation was also lower Installation: Simply slip over the fan. Please push until the Fanduct Frame is flush with the fan housing. (See also photos of other makes) (Make sure you snap it all the way into place. It may seem like it's seated, but make sure it is all the way in. Mine made a nice click when it fully seated.) Printed on a MK4 in PETG with 0.6 nozzle / 0.15 or 0.2 Quality / no supports MK4 part cooling is inconsistent - this Shroud prevents this. This Fan Shield / Cover has noticeable positive affect when printing materials and geometries that are sensitive to overcooling. Also this modification ensures that the hotend fan gets cooler air. Description from Davids Original Design: “When dialing in my MK4 printer to match the print quality of my Mk3S+'s, I noticed that the MK4 part cooling was inconsistent. Upon further examination, it became clear that the positioning of the MK4 hotend fan was creating turbulence/drafts at the nozzle and affecting part cooling. ” Discussion in the PRUSA Forum: https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-general-discussion-announcements-and-releases/heatbreak-fan-might-be-causing-asa-abs-warping/ Also a neat design upgrade for your MK4 :-)
AI Analysis: This is a component designed for printers, specifically to shield the hotend fan and reduce air turbulence near the nozzle. It helps improve quality by preventing inconsistent airflow that can cause defects. The part features a fan housing and a shroud structure to direct airflow away from the nozzle area.

Originally published on Printables