Last night I got started riveting the first parts of the horizontal stabilizer together. I used the pneumatic squeezer for most of it but had to use the rivet gun for some of the rivets. The rivets I did with the gun are not perfect, but I think they turned out fairly good. At the end of the night I had an assembly that looked like this:
In the weeks before this I spent a lot of time countersinking all of the holes in the spars and stringers and then priming everything. The single flute cutter I ordered worked really well right up until it broke so I switched back to the 3-flute cutter I had been using. A common issue people have with the 3-flute cutter is that it chatters in the hole and creates a bunch of small ridges in the countersink. I found that using my electric drill on the slow speed setting seemed to prevent this from happening, and also helped me avoid having the bit cut sideways through the hole.
I broke up the priming into two sessions. I primed the skins during the first session and everything else on second. The second session turned out do be my longest priming session to date. Even with Meggin’s help prepping the parts for primer it was close to a 6 hour session. I wasn’t sure we removed all of the residue from etching the parts so we decided to go back and clean everything again so that added a lot of time, plus I was using a new spray gun that I had to learn how to use first.