I'm having a bit of trouble setting the rivets in the picture below. It appears that I'm not using enough air pressure in my 3X gun. Wondering if anybody remembers what they used. Currently trying to use a double offset with a 1.6 lb. tungsten bar.
Currently using 45 psi. Seems that I may need significantly more pressure. Thought I'd ask before I jack the pressure up and risk "engraving" the spar with smilies.
For those that can't quite picture what I'm working on, it's the final rivets on the HS stab for an RV-14.