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Missile Silos & Control Bunker

The photograph below shows two missile silos and a launch control bunker made by Neal Crankshaw from cereal packet cardboard and foamcore.

Missile Silos & Control Bunker

The starting point for the silos was to create a pattern on the computer using Freehand. We've made it available here as an Adobe Acrobat .pdf file (3kb). The design was then printed out and glued to a sheet of 5mm foamcore prior to cutting. Note that it was Neal's intention from the start to use old CDs as the bases so the dimensions were calculated to fit on a CD.

Missile Silos & Control Bunker Missile Silos & Control Bunker Missile Silos & Control Bunker Missile Silos & Control Bunker

Each silo requires two of the patterns. The first is simply cut out with a circular hole in the center (made with an Olfa Compass Cutter as shown in the picture). The second piece is cut up as show to create the steps and the cover for the silo. Making tape was used to finish off the sides.

Missile Silos & Control BunkerThe model was sprayed with grey primer and lightly sprinkled with fine sand while the paint was still wet. The sand did not cover the whole model - just a few areas. It was then painted up using thin browns with some splashes of grey and green, drybrushed tan and light grey.

Note that the cover is not glued down. It is intended to move (or at least to look like it can move) back and forth on rails.

Channels were cut into the underside of the foamcore for the wiring. Masking tape was used to cover the channels and hold the wiring in place after the LEDs had been fitted into position. Spade connectors were used so that the wires can be connected to the bunker (which holds the batteries). When the model is being used, these connections are hidden by a little cover that looks like a motor for the hole cover.

The control bunker also started out on the computer:

Missile Silos & Control Bunker Missile Silos & Control Bunker Missile Silos & Control Bunker

Missile Silos & Control BunkerOnce again I started by doing some simple plans in Freehand (made available here as an Adobe Acrobat .pdf file (7kb)), sticking them onto a cereal box and cutting them out. I used Kellogg's Cornflakes even though Special K is supposed to be healthier. I'm just like that. The plan for the base was stuck onto foamcore and cut out. Note the notches in the base to accommodate the wiring.

The supports were also planned in Freehand, stuck onto foamcore and cut out. It was quite easy to get a snug fit - I just excavated out all the foam from the foamcore to create a hollow on the back that the corners of the bunker fit into. The outside edges were lined with masking tape.

The piece was painted in the same was as the silos and based on a CD with PVA, sand and tea leaves being used to add texture. The sand bags were made from modelling putty - I simply rolled out a snake and cut to size.

Missile Silos & Control BunkerNote that the bunker can be lifted off the base to reveal the battery compartment. When the piece is in use the wiring and connectors are hidden as shown in the first picture.

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