Estes BOSS Kit #7316, Build, Part 3, Fin Prepping, Gluing Dish & Priming Vanes

On the left you can see where the laser cut started in two different places down the root edge of a fin.

Sand and square up all the fins for better contact and a stronger gluing edge on the body tube. (Right picture)

The big round solar array "fin" is two halves glued together.

I glued them up with a heavy water glass for some top pressure.

You can see the open slots through the glass on one side of the disk.

It would be very difficult to fill the 12 vanes after they are glued close together around the tube.

I decided to fill them with CWF and sanding. 

Here they are taped down to a piece of cardboard for a shot of filler/primer.

Notice the root sides are butted up to keep paint off the gluing edge.