Carded Red Max Build, Part 3, Fin Skin Folding

To emboss the leading edge fold line sometimes I use the back side of a single edge razor blade. The sharp side is taped over with layers of masking tape.
Any rough burrs are sanded off before embossing.

You might find it easier to use the tip of a dull butter knife to emboss the leading edge fold lines.

Emboss the leading edge fold before cutting out the fins.
Lightly score the center lines using a straight edge.

Cut out the fins outside of the red image area. The white edges will be cut off after the overlay skin is glued to the center core.

Notice the ink coverage one side is larger. This ensures full ink coverage on the backside of the fin when it is cut out.

Pre-fold the leading before gluing over the center core. As always, I'm using the back end of a Sharpie barrel as a burnisher.