I finished cleaning up the fog lights today and got started on the underside bevel. Since I plan on making a skid plate to protect the radiator anyway, I wanted a recessed slot for the plate to sit in, so that it would sit flush to the bumper. This was an easy matter of overlapping two plates. After taking some measurements and checking where things were already protected, I decided on a 24" wide skid plate, and made the initial slot to match. Since these pieces were across the front of the bumper, they were nearly straight, so I went with the easiest method and just bought some 1.5" and 2" steel bar to create the overlap, finishing up with a piece 3" wide and a 1.5" lip left to bolt the skid plate to. This piece got welded to the underside of the bumper at a 45-degree angle, and sets the angle for the rest of the bevel as I finish it up.
While I had the bumper off, I got some templates drawn of the curve needed for the rest of the pieces. I plan on keeping the bevel 3" wide all the way around the underside, however it will be vertical on the sides, and rolled to 45 degrees across the front. Since working with these compound curves is such a pain, I decided to build the bevel in 5 separate pieces (2 on each side of the center section). These pieces will get cut out of the scrap of 3/16 I still have left over, and should make a huge difference in the effective strength of the bumper.
I did run into an issue while wrapping up today. My receiver is set to slide right under the cross-pipe between the front frame rails. This was initially positioned about 1/4" below the cross-pipe, but as I've added more pieces, the angle has changed just enough that today I had a lot of trouble getting the bumper back onto the truck. Next time I have it off, I'll use a clamp to try and push the receiver back where it belongs so I can get the vertical supports welded in place and keep the receiver from sitting directly against that pipe.
Oh, and I also got the side 'guides' cut off today, finally. They had in fact started to bend the fender pins just from diving around on the streets, so I can imagine those pins getting ripped off if I had tried going off-road. Problem solved now, but next time I have a moment, I still need to grind smooth the area where I had welded those brackets inside the bumper. Nothing shows, but there's still bits of sharp fresh-cut steel poking out, just looking for a hand to mangle...
Not much else to show until I get the bevel pieces cut out and start welding them in place... hopefully in the next couple days.