My son is building a beer pong/corn hole set. Basically this:
http://www.curvesatbethany.com/wp-content/uploads/2015/08/1.png
I need to begin by saying that he already bought 1/2" plywood and cut it to=
size *before* he=20
called me about cutting the ledged holes. =20
So here's what I'm going to suggest:
1 - Glue a piece of 1/4" tempered hardboard to the topside of the plywood.=
=20
2 - Use a circle cutting jig and an up-cut spiral bit to cut the circular h=
oles through the now=20
3/4" panel. (He's planning on making a circle cutting jig for his router)
3 - Use a slot cutting bit, with the bearing riding on the plywood to creat=
e the ledge by cutting=20
away the hardboard top.
A quick look shows that Amana makes a slot cutter that will cut a 1/4 inch =
"slot" (in this case,
the ledge) to a depth of 3/8=E2=80=9D. I'm sure there are other slot cuttin=
gs bits that will work.
4 - Cut the insert disks from 1/4=E2=80=9D hardboard.
Does that sound like a workable plan? Have I chosen the right router bits f=
or the task?