Estes Klingon Battle Cruiser, #1274, Build Part 13, Access Boom Detail Piece

The small access boom detail piece fits over the lower BT-50 tube.
I was surprised the instructions didn't mention sanding the bottom to fit the tube curve.
There is a curve in the piece after it is rough cut from the plastic sheet but it can be contour sanded for a better fit.

Roll some 220 grit around the BT-50 and sand the bottom of the vacu-form piece.

At the front you can see some very thin plastic hanging on to the edge. Instead of sanding more off the bottom, roll the edge under the piece and slightly sand to take it off.

Follow up with a little smooth sanding with 400 grit around the tube.
The picture shows the final dry fit.





Going back to the drive engines - 
There was still some small gaps where the the edges didn't meet up.
I set some beads of medium super glue over the gaps to act as a filler.