Downscale A-20 Demon Build Part 4 Fins

White Glue has been applied and smoothed out on the underside of the printed area.

Here the fin is placed over the straight edge of the cereal box cardboard.

You should set down the leading edge fold first, making sure the entire length of the fold is on the edge of the cardboard. Follow by smoothing the sides of the printed overlay.

Once again I'm using the Sharpie pen to smooth out the surface.

TIP: Lay a piece of clean paper over any printed area before burnishing. This way there is no chance of rubbing off of the print or transferring any dirt from the burnishing tool on your work.

Watch for any glue that may be pushed out the sides and wipe clean.

Lay the glued fins in a fold of wax paper and set in a heavy book for drying. Let them dry overnight.

TIP: If you are pushed for time, you can use an iron set on "Cotton" - "Dry" (no steam) and iron over the fins to dry-set them quicker. Use a clean piece of paper over the fins when ironing.

Only one side of the fin has a "hairline" cut guideline and the words "Root Edge". Cut the fins from this side. The other side of the fin is printed oversize to insure color coverage.

Cut out the fins using a sharp razor blade and straightedge, cutting through all three layers of the ply.

Apply white glue (not yellow glue, white glue dries clear) along all the outside edges of the cut out fin. After it dries, lightly sand over the glued edges with 400 grit sandpaper. Be careful and don't sand off any of the printed sides. Re-glue, let dry and sand again.

Here the Sharpie pen is used to (slightly) round over the outside and trailing (cut) sides of the fins. Don't do this on the root edge, you'll want that edge square and sharp.

This style of carded fin will have a rounded leading edge, square root edge and slightly rounded outside and trailing edges.