Bosch RA1171 Router Table Dust Port Adapter
thingiverse
My solution to enable a single vacuum hose connection to both dust ports of my Bosch RA1171 router table. The adapter mounts over the existing dust port hole in the router table cabinet and is secured with six M6x40mm flat head (countersunk) screws with nyloc nuts on the inside of the cabinet. I used some 2mm thick neoprene to make a gasket that mounts between the adapter and the cabinet. The adapter accepts standard Shop-Vac brand 2-1/2" hose ends (58mm OD). As designed, the dust ports are a tight fit for these hose ends; you may need to sand the inside of the dust ports slightly for a looser fit. I uploaded the Fusion 360 file if you want to edit the adapter to suit your needs.
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