NTS & B Cable Stayed bridge complete

Finally completed the second suspension bridge. It was much easier to build than the traditional suspension bridge (see bottom of this post for measurements). The upper level of the helix loop is almost done, with the exception of a couple street lights and the telephone pole wires. More on that next week

Measurements:

• Holes on towers are spaced every 1/2 inch and start at 1 1/2 inch from top
• Holes are deck spaced every 2 inches and start at 1 3/4 inch from edge of tower
• Tower is 17 1/2 inch tall from top of deck, and hangs down 1 3/4 inch below deck
• Deck to bottom of cross brace between towers is 13 inches
• Deck is made of 1x8x8, and is app 12 1/2 ft long total
• Overall length of deck from first cord to last cord on 1 tower is 45 inches
• Towers are made of 2 1x2's shaved and shaped with a router.. The inside on rests on the deck, and has a grove routed in it for the all thread support rod and wires for the blinking LEDS. The cross piece is screwed to the inside pieces. The outside pieces are longer, and hang below the deck.
• The cables are made from weed eater cord, and are over 50 foot for each tower. They are knotted underneath on each end.
• If the cables are strung so tight that you can play a tune, chances are they are too tight, and will warp the ends of the bridge up. I usually park a heavy engine in the middle of the bridge to help prevent this from happening.
• Hint: If the cable says 'invisible', then you probably wont see the cables :(. Shining a light on them won't help that a bit, either.