Welding smoke extractor - Extracteur de fumée de soudure

Here's a completely 3D-printed welding smoke extractor, complete with computer fan and activated carbon filter. It's important to protect your health when soldering. This DIY welding fume extractor will help you do just that with its activated carbon filter.

It is made up of 4 parts: 

• Body = The smoke extractor frame
• Electrical box cover 
• Grid = The honeycomb finishing grid
• Stand = Extractor base

You can print the extractor either with the .gcode files already set or with the .stl file.

All 3D printed parts were produced in PLA, 0.4mm nozzle with a Prusa MK3S+.

Here's the list of components you'll need to assemble the extractor (Component links are at the end of the description) : 

• 1 Fan 90x90x25mm 12V DC
• 1 ON/OFF switch
• 1 Activated carbon filter 130x130x10 mm 
• 1 Quick connector Hole diameter 10 mm 
• 1 Power-supply 12 V DC 
• 8 Round magnets 8x1 mm 
• 4 Screws
• 4 heatable threaded inserts M5
• Wires
• A little DIY magic powder ;)

Assembly manual :

The extractor is very easy to assemble. You need to take the body, install heatable threaded inserts in the holes provided on the inside of the body (see next figure). 

These will be used to secure the computer fan inside the chassis. You'll need M5 inserts. To fix the fan, you can use 30mm M5 screws. Pay attention to the fan suction direction. 

Once the fan is installed, you can place the activated charcoal filter right in front of it (it fits perfectly into its housing, as shown in the photos). 

Then, you can then install the first 4 magnets on the body. Glue them in place. 

Then take the grid and attach the other 4 magnets. Make sure the magnets are facing each other. The grid is held in place by the magnetic force of these 8 magnets.

Insert On/Off button into electrical box cover. Insert the quick connector into the hole in the body.
You can now solder the various wires to connect the components. 

The electrical circuit is simple to make. You have the positive and negative terminals of your power supply. Connect the positive terminal to the button. Then from the button to the fan's positive terminal. Then connect the negative terminal of the power supply directly to the negative terminal of the fan. Make sure your power supply and fan voltages match.

Finally, you can secure the extractor base with glue. There's a little play in the measurements. You can choose the angle you wish to give to the foot.

The assembly is now complete. You can now weld with this beautiful extractor.
Have fun in the world of DIY.

A new version of the extractor will soon come with a part for attaching a hose to the extractor outlet.

Links : 

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