Fume extractor for soldering iron

In my model I used an old 9 volt motor of 26 mm diameter but feel free to change the diameter of the motor mount hole via the fusion 360 file to adapt this model to your needs. Additionally, 3 M3x35 mm screws and 3 M3 screw thread inserts are required for the project. Optionally I cut a piece of an old vacuum cleaner filter to use it to filter fumes, but consider using it in your model as this will lower the suction capacity of this object quite a bit, the last component I used in this model is It was a 2-pole JST connector to connect the motor to a power supply regulated at a voltage which in my case ranged from 9 volts up to 24 volts to power this object.

This is the list of the components for this project:

• 3d printed parts
• 26 mm diameter motor (the motor can be of any length)
• 3 M3x35mm screws
• 3 M3 screw thread inserts
• Some wire 
• 1 JST connector
• 2 M3 headless screws to fix the fan to the motor
• a piece of an old filter (optional)

Assembly instructions: print all the parts with the necessary supports, I recommend printing the fan with the best possible print quality. Solder 2 cables to the motor, thread the holes at the base of the fan with a male threader for M3 screws, screw the fan to the motor pin with 2 M3 headless screws, taking care to ensure that the fan turns straight on the motor pin . Insert the fan plus motor assembly from the bottom of the fume extractor and fix the motor to the motor support using a few drops of superglue if necessary, insert the threaded inserts into the holes provided on the top of the fume extractor using a soldering iron, finally connect the JST connector to the cover using some hot glue and close the cover on the body of the fume extractor using the 3 M3 screws.

Optionally cut a piece of filter measuring 60x60 mm to insert at the base of the fume extractor, possibly choose a filter with a maximum thickness of 10mm or cut the filter to reduce its thickness in order to increase the suction capacity of the object.

ATTENTION! before completing the assembly, check that the fume extractor sucks in the smoke produced by the soldering iron, otherwise reverse the polarity of the motor to make the fan rotate in the opposite direction. If this still doesn't work, consider removing the filter from the fume extractor.

As repeated before, feel free to modify the fusion 360 file to adapt it to the dimensions of your screw motor that you may already have, etc.