While I was working on the fence I was also finishing off the table.
To mount the router to the table, I needed to cut a hole in table
to fit router. I used a piece of 1/4 inch plexiglass to hold the
router so a depression in round the router hole must also be cut.
I did not cut this exactly to depth, instead I set my router to just short
of the depth of the plexiglass and used sand paper to bring it to final
depth. After that was done I drilled holes for mounting screws and
finish whole table off with 3 coats poly-acrilic. I sanded with 600 grit
between coats and did a final sand with steel wool.
 
Finishing
 
     
Adjusting placement of router on bottom of top.
It should be neard back for most table area in front.
 
I used my router to cut out a groove around hole.
You could also drill holes and use a chisel, or a jig saw. The boards
are set up to provide a guide for cutting.
 
Cutting finished, now I need to clean it up.
 
Hole now cleaned up with chisel and file to be
nice and straight.
 
Top set up to route a 3/4 inch wide trought. This
should be set just a bit shorter then the depth of the plexiglass, the
final flush fit can be made with sandpaper.
 
All cut and cleaned up. Ready to fit plexiglass
router support.
 
Plexiglass fitted in place. I had to sand the ledge
down so the top of plexiglass was flush with top of table. Don't want
to snag on anything.
 
Close up of the top showing how the plexiglass router
mount is held down. The outer screws are #10-32 1inch machine screws, that
are held underneath with nuts and star washers. All holes are countersunk,
to give smooth surface. The router mounts are #8-32 by 1/2inch (use what
ever your router uses). Also I recommend drilling the plexiglass with a
bit and brace instead of a power drill. I cracked my plate in a few places
becuase of this.