Custom Solar Explorer Build Part 10 Fin Priming

In this picture, the CWF has already been sanded down with 400 grit on a block.
All the flat surfaces and edges were sanded flat.

Here I'm just "kissing off" the rough corners of the leading and trailing edges at a 45 degree angle.
Sometimes the squared edges will be rough, that will show up when the color coats are applied.
This is a very light pass of the sanding block, not
enough to lose the sharp edges.



The two fin pieces are glued together in a "T" shape.
I've been filling the balsa before gluing it all together. It'd be very hard to get filler into all the inside corners if the model were all built up.

Before priming, the center strip (the gluing area to the main, large fins) square of the rectangular outside fins will have to be masked.

Use a ruler to find the center and draw the line with a pencil.

Here's all the fin pieces flat side up ready for the primer.
One side will be sprayed and let dry. The fin pieces will be flipped over and stuck down again to prime the other side.

Look close at the long rectangular pieces. Down the center line is a strip of masking tape to keep the primer off the gluing line for the outside edge of the main fins.