The next item on my dusty hit list is the router table. I have a dust port in the back of the fence, but that only really gets half the mess, and depending on what kind of operation you are doing it might get none. A lot falls down below the table and gets everywhere. The router is a high speed cutter and makes a lot of fine dust. Here is what the surface below the router often looks like.
I need some kind of box to go around the router and capture most of the dust that falls below the table. They can be bought online, but for 100+ dollars I will make my own. I made a back and bottom with dust port in the back to take a 4″ hose.
I wanted all the other sides of the box to move out of the way when I am working on the router. I attached the left and right sides with hinges so they can swing closed or wide open to let you get your hands in and work.
To hold everything closed and attach a front door, I put strips of magnets on the front edges of the side walls and the front door. It just snaps into place and keeps the side walls from swinging open.
I attached the bottom of this box directly to the toolbox base that the router table sits on. There is a small gap between the top of the box and the underside of the router table, and a large gap at the front wall. These gaps help by drawing air in and pulling the dust away. If this box was completely sealed you wouldn’t pull any dust out.
The quarters are a little tight under there, but the front door just pulls off and comes out any way you want. The sides naturally swing open a little and there is all the access you could ever want to the router for adjustments.
In the back I attached a duct splitter and have one hose going to the box and the other to the fence. Hopefully the 50/50 split will always be enough to get the job done. I wanted to add blast gates to adjust which side got more flow, but didn’t have space. Maybe a 3d printed part that acts as a flow control valve is in my future!
To test it out I routed a bunch of rabbets in some random plywood. There was a little left in the bottom, but most was removed. Any left over dust is at least confined to this box instead of in the air and all over the shop.