To better fit the skin of the parachute cover, ribs 3 and 2 need to have a bunch of holes dimpled. For dimpling we use the DRDT-2 from ExperimentalAero. We dimpled the parts prior to cleaning and priming to have a better fitting of the primer. After some more cleaning and priming, the parts came together quite nicley. We did not have any issues with rib 3 but with rib 2 as the construction manual shows 4x 3....
During the last days, we took quite some time to prepare, prime and rivet the next bunch of ribs. Starting with rib 6 which includes some parts sliding through a slot of other parts. Besides the construction manual only showing 7 rivets to connect the parts 1 and 4 after sliding the parts together, we shot rivets in all 9 holes. The next step would be to combine the first set of ribs together....
Today, I took the time to clean, prime and cleco the first two ribs together. As the parts for rib 9 are still on backorder, I started with ribs 8 and 7. I use 3M Scotch-Brite Pads (red) to prepare the surface for priming. Once the surface is a brushed, I use Aceton to clean of any grease traces. As soon as the parts are dry and the Aceton is vaporized, I apply FINIXA Etch Primer to the parts....