The Simple Dust Extractor
Made from 12mm thick MDF and using a household vacuum cleaner.
An extractor is needed to take away dust or fumes from the cutting area, especially when machining MDF.
MDF is a harmful substance and a classified carcinogen, it contains among other things, formaldehyde. and is a banned substance in many European countries.
The drawing below is for the shoe. Diameter 80 fits the spindle and diameter 31 is for the vacuum tube. you may need to change this to suit your hoover tube. Reduce both diameters by 0.1mm to give a slight interference fit.
The flexible hose on the bottom closest to the cutter is corrugated flexible pond hose, which is available in various sizes from aquatic centres or Ebay.
