A desktop fume extractor that uses a 120mm computer fan.
I made these files for a 38mm thick fan, but other thicknesses should work with a little modification.
Supports only needed on the main body to support the pivot pegs.
the stand needs to have enough shells to allow tapping the holes
Print 2 of "fanclip"
If you want the duct, print "duct" and "filter grill for duct", if not only print "filter grill"
I included a .stl of the fan grill nested in the base to save space on the print bed
he holes in the stand need to be tapped to 1/4"-20 or M6, as do all the mounting holes in the fan. Then everything just screws together. It may be a good idea to sand the surfaces of the pivots so it turns nicely.
Required hardware (I used 1/4"-20):
4x 1/4"-20x1/2" flat head screws to attach the fan to the housing and grill
4x 1/4"-20x1" flat head screws to attach the clips to the stand
4x 1/4"-20x3/4" flat head screws to attach the filter grill if not using the duct
4x 1/4"-20x1 1/2" flat head screws to attach the filter grill if using the duct
4x M6x12mm flat head screws to attach the fan to the grill
4x M6x25mm flat head screws to attach the clips to the stand
4x M6x20mm flat head screws to attach the filter grill if not using the duct
4x M6x35mm flat head screws to attach the filter grill if using the duct
Cut a rectangle of carbon filter and put it in the filter grill part.
there is also an optional duct that can be attached to help collect more fumes.
Obligatory disclaimer: don't use a 120/240V fan unless you are comfortable wiring it up, I am not liable for any injuries that may occur from messing with mains power.