Use the Easel file "Dust collection support arm for table saw" to cut out the parts. Plywood dimensions are 28" x 20" x 3/4"
Estimated time: 90 minutes
Glue two hose brackets together, resulting in 2 total wide brackets. Also glue the main bracket together.
Install threaded insert by drilling a hole and screwing the insert into place.
Attach hose mounts to support arm.
Attach support arm to main bracket with threaded knob.
Project complete