40mm Fan Blade Replacements

myminifactory

These are replacement fan blades designed specifically for the Noctua A-Series NF-A4x10 FLX 40mm fans, but they can also be adapted to work with most other 40mm fans by making some minor adjustments to the inner diameter opening. The compact size of 40mm fans makes them a popular choice for 3D printer cooling systems, where they are often exposed to high temperatures and may become brittle over time. To install these replacement blades, carefully trim off all remaining blade material from the inner spindle using a utility knife or similar tool. This will ensure that the new blades fit snugly onto the spindle. Once you have removed any remaining blade fragments, press the printed blades firmly onto the spindle. They should be a secure fit without the need for additional fasteners. If necessary, use a small amount of super glue to reinforce the connection between the blade and the spindle. When printing these replacement blades, it's essential to optimize your printer settings to minimize support material usage. This will help you achieve a smooth, bubble-free finish on the fan blades. However, if some support material does remain after removing the supports, be sure to sand it off before installing the new blades. Any remaining material can negatively impact the fan's airflow and overall performance.