Finally, success at setting a 470AD4 rivet. 3 in a row.
Yesterday's session was miserable. I couldn't set a 470AD4 rivet for anything. Tried driving with my 3x gun at different air flows. Have the import brass flow control on the gun, so I'm not sure what my pressure is, but tried several different settings. Think I'm a little low now as it takes 2-3 seconds for an 470AD4-6. My big problem was smileys, both on the rivet and on the piece I was shooting. I suspect that I don't have enough experience and am not keeping adequate pressure on the gun. Not sure how secure things need to be, so I may not have my piece clamped well enough and it is possibly moving slightly.
I quit building and went out flying instead. Same result when I came home, so I quit early.
Using a squeezer eliminated smileys on the rivet, but was getting them on the spar doubler that I was riveting. Figured out that as I was squeezing I was slightly dropping the handle, causing the set to mar the piece. Looking at the shop head confirmed it. It was not truly flat, but raised on one side slightly.
Tried again this morning. By concentrating on not dropping the handle of the squeezer I was able to squeeze 3 acceptable, safe and good looking rivets in a row.
BTW, I read a thread last night about shooting 470 rivets several times over so I know I'm not the only one with this malady. Now, back to the shop.
Yesterday's session was miserable. I couldn't set a 470AD4 rivet for anything. Tried driving with my 3x gun at different air flows. Have the import brass flow control on the gun, so I'm not sure what my pressure is, but tried several different settings. Think I'm a little low now as it takes 2-3 seconds for an 470AD4-6. My big problem was smileys, both on the rivet and on the piece I was shooting. I suspect that I don't have enough experience and am not keeping adequate pressure on the gun. Not sure how secure things need to be, so I may not have my piece clamped well enough and it is possibly moving slightly.
I quit building and went out flying instead. Same result when I came home, so I quit early.
Using a squeezer eliminated smileys on the rivet, but was getting them on the spar doubler that I was riveting. Figured out that as I was squeezing I was slightly dropping the handle, causing the set to mar the piece. Looking at the shop head confirmed it. It was not truly flat, but raised on one side slightly.
Tried again this morning. By concentrating on not dropping the handle of the squeezer I was able to squeeze 3 acceptable, safe and good looking rivets in a row.
BTW, I read a thread last night about shooting 470 rivets several times over so I know I'm not the only one with this malady. Now, back to the shop.