I bought some attachment parts from Rockler and they fit the Fletcher DC perfectly. All I did was cut a hole in the clear cover plate and the first peice fits snugly right on the wooden DC and then I close the cover and the threaded dust collector attachment fits right over the first one and even helps to keep the cover closed. I also have a coper wire screwed into one of the screws holdong the DC on the machine. I also put a sock in one side of the DC to get more air flow on the Touchpad side of the machine. I'm telling you I have hardly any dust left in the machine at all.
Alan