I fabricated the aileron bellcranks today. After prepping everything, inserted the AN470D4-12 rivets called for in the plans. The looked way too long but I double and triple checked. Tried to squeeze the first one and it started to fold over. The second was a little bent but acceptable. The third one squeezed straight but then it sort of popped. It appears to me that the shop head cracked and slipped over. Happened on 5 of 8. Going to toss these and build new ones.
Has anyone else experienced this? Am I doing something wrong squeezing? Using a regular cup and die which works fine on shorter rivets.
Don't want the same to happen next time.
Has anyone else experienced this? Am I doing something wrong squeezing? Using a regular cup and die which works fine on shorter rivets.
Don't want the same to happen next time.