The first step in welding was to first weld the two pistons together crossed across each other. to keep the piston heads from moving about the rods, the heads were also tack welded in a couple places to keep them from moving. Once the pistons were welded together, they were propped in place on the rotor and then tack welded to the rotor. Once I was sure they were in a good position, I went over the tack welds and fully welded the pistons to the rotor.

After letting the assembly cool off, I used a combination of chisel, oscillating multi-tool sander, hand sanding, Dremel, and wire brush to clean the slag from welding, metal spatter, and the welds themselves so that the rotor and pistons look clean. Photos from this process can be seen below.