We're excited and proud to launch Thingiverse Apps. Learn More about what this means to you.
Does the fan on your extruder heatsink have a broken blade? You can fix it without having to buy a new one. Using the instructions below, you can print a new blade. Although the blade is designed for this specific fan, it may also work for any 40x40x10mm fan as well. Happy printing!
Before you start taking apart the damaged fan, print the new blade. You might be wise to print a 2nd copy in case you screw up the first time.
Remove the damaged fan or move it to a workable position.
Option 1: Using pliers, gently wiggle the damaged fan blade while pulling backward until it comes off. (see picture)
Option 2: Puncture the label on the front of the fan with a push pin or small screwdriver, and push out damaged blade.
Pry out magnet using a small slotted screwdriver or pick. (see picture)
Remove bearing and axle with pliers. It will most likely break off; if it does, remove any remaining plastic fragments from the axle. (see picture)
Install magnet into new blade dark side up/silver side down by laying the blade on a hard surface and pressing it in. If you have an arbor press at your disposal, use it.
Re-drill axle hole using a 5/64" bit. Do not drill through the back of the blade. (see picture)
Install the axle/bearing assembly to the new blade. Make sure you press it in square. (see picture)
Grab the bearing with needle nose pliers and spin the blade. Adjust the axle until it doesn't wobble.
Solidoodle 40mm fan repair by kj6epl is licensed under the Creative Commons - Attribution - Share Alike license.
So what's this mean?
We're sure kj6epl would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!