My router throws dust and chips like nobody’s business. So I came up with this attachment to collect them close to the source.
It utilizes the edge guide rods that come with most routers and a couple of springs to hold it in position as I work. The dimensions shown here fit a Bosch router, but you can easily modify them to fit yours. All the parts are glued and screwed together. You can drill holes for the rods and vacuum hose connection to suit your router and hose. You’ll want a nice, tight friction fit on the vacuum hose. To assemble the hood, place the rods in the holes, then the springs and finally the stop collars.
I made the box from plywood cutting rabbets for the hardboard top and bottom. The collection hood allows you to position the vacuum hose as close as possible to the bit without a lot of unnecessary fiddling with adjustments.