Finished up deburring the 40 sized holes on the upper and lower flanges of the wing ribs today. After deburring all of the holes, each one was dimpled. I couldn’t use the DRDT-2 for the dimpling of the ribs so I used the hand squeezer. I mounted it to the workbench so I could hold the rib with one hand and dimple with the other.
So for each of 28 ribs, I have now:
- deburred the edges
- fluted the flanges to straighten the rib
- final drilled the holes in the flange (around 45 per rib)
- deburred the hole
- dimpled the hole