Thanks, Richard. Your rivet set doesn't appear to be a "back rivet" set. (No spring-loaded nylon cover) That's the only kind I have that's long enough. It will do, but do you remember where you found yours?If you can get to them with the squeezer and longeron yoke and keep it straight then all good. If not then the backrivet in the C frame is also a perfectly acceptable way to go. Once the C frame and whatever you use to keep the ribs flat are set up you can probably knock out all 6 ribs and hangars in one session pretty quickly.
I can’t remember which way I went but I found these two photos taken on the same day so I’m guessing I used the C frame.
View attachment 54526
View attachment 54527
My records showed that I was able to get to them with the longeron yoke. Have you tried through the lightening hole as well as around the edges?What is the best method of riveting the 470AD4-7 rivets here?
Good question! From memory it just came with the c frame. But that’s a 30yo tool now so I can’t really be sure.Thanks, Richard. Your rivet set doesn't appear to be a "back rivet" set. (No spring-loaded nylon cover) That's the only kind I have that's long enough. It will do, but do you remember where you found yours?
I have and I think I just don't have the entire piece secure enough and in the right position to get at them.My records showed that I was able to get to them with the longeron yoke. Have you tried through the lightening hole as well as around the edges?
Yeah, it looks it. If I can't get the squeezer set up right, I'll just use my backrivet set. I have a 3x gun I use with, as you said, elevated pressure. I prefer the squeezer, though, and will continue messing with it for a while. Thanks.Good question! From memory it just came with the c frame. But that’s a 30yo tool now so I can’t really be sure.
If your 12” backrivet set fits the C frame which I think it should (1/2” diameter) - then that would be fine too.
If you haven’t tried this already then give it a practice on some similar scrap parts first.
The stack up of 2 ribs and 1/8 plate plus a long rivet set means you will need quite a bit more pressure than you think.
It’s not like backriveting skins and stiffeners.
Good to know. Thanks.I just did those recently, and i was able to get them all with the longeron yoke
I was wondering how cushion the piece in the vice and I see you used what looks like some pipe insulation or packing material. I'll try that on the next one. Yeah, that "springiness" is a problem. Hard to get a good surface to surface contact on the web. Thanks.These were a little springy due to the thick flap hinges and thin areas. I was comfortable to do them with a normal gun and tungsten bar once they were held securely:View attachment 54774