I meant to post this earlier, when I started on my first wing. Those that are just starting, or still building their wings may get some value (or you may just tell me that everyone knew this but me).
When I started riveting the center ribs on, I just wasn't happy with how the tops of the rivets just didn't pull up tight against the ribs. No matter how hard I pushed, the manual rivet puller, or my big air puller just couldn't get into the tight fitting area. So, I remembered an EAA video where they were using a small wedge to put between the puller and the rivet. I made my own, except it is not a tiny wedge, rather a more substantial piece of steel that holds the rivet straight, holds the rib tight against the spar, and lets you pull the rivet from the side of the rib where you have plenty of room. Below is a picture for any that want to build their own.
For mine, I used 1/2" square cold roll steel that I had laying around (this could be thinner) that has been milled on the top at a 12 degree angle, and a hole to go over the rivet stem. The bottom held against the rivet is flat to hold it tight. The end is rounded and 1/4" thick. You can grind or use a cutoff wheel to make the top angle if you don't have access to a milling machine.
Tony
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