I started with a couple of pieces of scrap steel (remnants of the adjustable rudder pedal project). On one of them I welded two pieces of steel rod (the cheaper stuff from the hardware store) and on the other piece I welded one rod in the center.

This is how I mounted them on my vice for use (electrical tape works great).

This is how it looks as the forming progresses. I had some 4 foot pieces of steel 1 1/2" wide bent to a 90 degree angle to start. Then I put marks every inch to mark the locations of the flutes. To get more of a curve you clamp the vice down harder and make the flute deeper. To make a gentler curve you do the opposite.

Here is what the edge of the former looks like after fluting.

This is a view from the back side. If I needed to make any adjustments to make the piece more curved I just went back and put a little more flute into every other flute. To remove curvature I just laid it flat on my work bench and, holding each end, spread it apart a little. It is trial and error but you can duplicate each piece pretty accurately.

This is the most aft side former on the left side (I am only taking the sheet metal back to the back of the front cockpit). The little tabs that go between the upright to support the former are actually the supports that will support the front end of the stringers. For this reason the tops of them coincided to the level I want each stringer.

This is the right aft former after welding. You can also see the former in front of it. There isn't really any way you can support it from an upright that I can see so let's hope it is stiff enough after the sheet metal is screwed down.

I started the bottom formers by tack welding the most fore and aft formers in place. I then used some aluminum angle clamped between them to make sure the formers in between these two were level with them so the sheet metal will lie flat.

Here are the bottom formers installed but not completely welded. You can see I have added two between the front and aft former. I have four supports on the aft former because I plan on having four stringers along the bottom. The front end of each stringer will be secured to each of these four supports.

This is the first clamshell door being set up and clamped for tack welding. There really isn't anything in the plans about any of this so I just had to make it up as I went. I think the main things are to make sure you have even spacing, make sure they aren't so close that they interfere with each other or the fixed formers and that they are stiff enough to take some pretty good wind for just after landing or just prior to takeoff. They should be stiff enough to keep the sheet metal closed when the landing gear are off of the ground too. If they were slightly in more than the other formers that would probably be OK as it would keep the door edges pressed flat.

One side welded and the other side clamped up for tack welding. The only bad thing I can say about this is the really thin metal is a little harder to weld and make it look good. These pieces are welded onto the landing gear leg itself so it is important that the landing gear be in the position they will be in when in flight to get correct alignment.

About all I have left to do in this department is to make the former for in front of the front cockpit. I will have to wait awhile before doing it because I will have to be able to set a straight line from the nosebowl to this former and make sure I clear the fuel tank and line up with the fire wall. I'm not sure yet if I need any formers around the fuel tank so I will have to research that. I also plan to make my side panels with the ability to be opened to get to the rudder panels and other things inside without having to stand on my head in the cockpit. I will add the steps I take to do this when I get to it.