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Falcon Depot Portcullis and Drawbridge
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Some people have been asking for details on the making of the operational drawbridge and portcullis of the Falcon Depot. So, as I tore it down, I documented their inner-workings. The drawbridge pivots at the base and is wenched to its upright position with a chain that is anchored on one side and wound around a bar on the other. The portcullis is actually modeled after historical drawings of how real portcullises operated. A chain on each top side of the portcullis is drawn around a pully and centered and wrapped around the bar turned by the crank. On both cranks (portcullis and drawbridge) there is a stop mechanism to prevent the crank from reversing itself during turning. This allows the poor soul doing the cranking to only have to fight gravity for little bits at a time.
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Comments

 I like it 
  June 30, 2010
This is very clever :) and reminds me of a diagram of a counter weight portcullis on wikipedia! But the crank is way cooler!
 I like it 
  December 17, 2008
This took some thinking, but it makes the castle That Much Better! Very very nice.
 I like it 
  October 7, 2008
Very cool, I this reminded me to make a drawbridge on my castle. Check it out. Nathan
 I like it 
  July 30, 2008
Very nice. Check out my MOCs if you have time. Once again... wait, I didn't say this before... It's awesome!
 
By Dave Myers
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Added July 9, 2008
 


LEGO models my own creation MOCpages toys shop Falcon Depot Portcullis and DrawbridgeFortresses and castles


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