Print all parts. Use Supports. Use a higher infill . 75 MAX.
Remove support material from printed parts. Use Needle Nose Pliers and Exacto Knife
You can pick up some clear vinyl from your local hardware store and cut it to fit in the slot on the bottom of the dust shoe to act as your bristles. Cut the Vinyl to be 20" long. Use small screws to screw the vinyl into place. You can use pan-head screws for all except the back. Use a countersink screw for the back so that it does not hit the Z rod.
Insert the button extension into the Threaded Ring. Thread the ring onto the spindle. It works best if you start with the button extension aligned with the button to begin threading it on. Go slow and don’t force it. May take some wiggling to keep the ring properly aligned in the beginning. Make sure the router is lowered so you don’t hit the Z rod. It takes only one revolution to line the button extension up with the button.
Attach the dust shoe by lining up the teeth on the threaded ring and the dust shoe. Push up and then slide over to lock into place.
You can add black electrical tape to make the attachment tighter, or carefully file areas to make it looser.