Sunday, October 11, 2020

Deburring parts and made a countersink test piece - 5 hours

 Nice long day on the build today. I managed to debur all of the fuselage "pieces". I use a combination of deburing tools and maroon scotchbrite on the dremel.


One thing that was bugging me....I'm doubting that my information on countersinks might be incorrect. So I decided to go to work on building test pieces out of scrap to figure out if the info I have is correct or not.

Basically what I did was to cut three different thicknesses of dimpled pieces (0.025", 0.032" and 0.040") and then went to work on determining proper countersinks for those dimpled pieces. After much testing, I found the that proper countersink diameters for me, were ever so slightly smaller than the data I originally had.  Now I have an actual standard for proper countersink diameters.


I then went back and double checked my longerons and I am perfect!