Forward Fuselage - custom rear seat channel attempt #2

04-05NOV2023
     
Tom 3D printed taller bottom dies for me so that I could bend new channels with wider flanges.  The dies worked out great and I spent quite a bit of time bending new channels.  I was trying to get the angles as close to 90 and 78 as I could, so ended up making a few pieces and used the best ones.
    
To make the channels, I cut out a 57mm x 478mm piece.  I marked the bend line 20mm from the edge and bent the 90 degree angle first.  Then I marked the other bend line 20mm from the other edge and bent to 78 degrees.  I didn't hit these angles exactly, but I'm within 1-2 degrees which I think is fine.  These measurements shortened the rear channel to approximately 20mm tall vs the supplied channel that was about 30mm tall.
  
After match drilling the bottom holes, I clecoed the channels in and already I could tell that this fits way better.  It lines up much nicer with the side angle. 
  
Then I trimmed the left seat base, match drilled the seat base to rear channel, and march drilled the seat base to the baggage floor.  The seat bases are no longer bowing and they are not interfering with any other parts; this looks like a much nicer fit.
  
Seat Bases Clecoed


Left Seat Base


Right Seat Base


Custom rear seat channel - lines up with side angle


Template I used to mark bend lines


Dies for bending rear channel
(Bottom 3D printed, Top welded bar and round stock)




Build Time:  6 hours 45 minutes