Estes Asteroid Hunter #3224, Build, Part 11, Trimming Up The Skins

Here's where the main body stands now - 

Note the overhang is a little longer on the back, larger end shown on the bottom. This overhang will be trimmed then sanded to the flat faces of the balsa.

Viewed from the side - 

These long side edges will also be trimmed and sanded.

Use a new, sharp single edge razor blade to cut down the overhang.

Don't cut into the balsa face!

It is very easy to veer off a straight line and cut into the flat balsa sides.

Notice there is still some card stock edge left above the blade in the picture.

With most of the overhang gone, the cardstock is now stiffer near the edge and easier to sand.

Sand the remaining cardstock down to the balsa with 220 grit and finishing with 400 grit on a block.