Fan Duct Longer LK4 & LK4 Pro

thingiverse

NEW MODEL that stood out best in testing: https://www.thingiverse.com/thing:4242796 This is a fan duct for Longer LK4 and LK4 Pro printers to replace the original one, designed with improved airflow direction to cool the filament effectively without wasting air cooling the block. No support is necessary if you print slowly, 30 mm/s or less. Due to the curved fan's poor tolerances, it will be essential to check which spacers will work best for you. The file includes spacers of 2, 3, and 4 mm. There are also two types of ducts: one with rounded corners and another with sharp corners. --- NEW MODEL that stood out best in testing: https://www.thingiverse.com/thing:4242796 This fan duct is designed to provide better airflow to the end of the nozzle for Longer LK4 and LK4 Pro printers, replacing the original model. The improved airflow direction helps cool the filament more efficiently without wasting air on cooling the block. Printing at a slow speed, 30 mm/s or less, eliminates the need for support. However, due to the curved fan's poor tolerances, it is crucial to test different spacers to find the optimal fit. Spacers of 2, 3, and 4 mm are included in the file. Two duct types are available: one with rounded corners and another with sharp corners.