Quick release tension wire system: Difference between revisions

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[[Category:Projects]]
[[Category:Projects]]
[[Category:Production Projects]]


This page documents the solution by [[Kirsty Campbell]] to the production challenge of rigging a quick release tension wire system for the production of [[The Seagull]] in the New Athenaeum Theatre , November 2009.
This page documents the solution by [[Kirsty Campbell]] to the production challenge of rigging a quick release tension wire system for the production of [[The Seagull]] in the New Athenaeum Theatre , November 2009.


Initial attempts at constructing this included using a [http://www.highgearsales.com/TIRFOR1.jpg Tirfor] which as expected turned out to be far too loud to de-rig during a short scene change. After much deliberation, it was decided that the most effective method involved using an automation motor to create the desired effect.  
Initial attempts at constructing this included using a [http://www.highgearsales.com/TIRFOR1.jpg Tirfor] which as expected turned out to be far too loud to de-rig during a short scene change. After much deliberation, it was decided that the most effective method involved using an automation winch to create the desired effect.  


Having moved a motor to the desired position, we then lowered the line to meet a 15metre wire drift and attached the two with wedge sockets and shackles. we also added a karabiner between the two lines in order to make the release time quicker and simpler. At a lower point in the line (the  same height as the top of the curtain a snatch block was used to divert the direction of the line. A ratchet strap was attached to the snatch block and anchored to a scaff bar at a 45 degree angle which would maintain the horizontal position of the line.  
Having moved a winch to the desired position, we then lowered the line to meet a 15metre wire drift and attached the two with wedge sockets and shackles. we also added a karabiner between the two lines in order to make the release time quicker and simpler. At a lower point in the line (the  same height as the top of the curtain a snatch block was used to divert the direction of the line. A ratchet strap was attached to the snatch block and anchored to a scaff bar at a 45 degree angle which would maintain the horizontal position of the line.  


[[Image:tension wire picture.png]]
[[Image:tension wire picture.png]]

Latest revision as of 13:23, 7 December 2012


This page documents the solution by Kirsty Campbell to the production challenge of rigging a quick release tension wire system for the production of The Seagull in the New Athenaeum Theatre , November 2009.

Initial attempts at constructing this included using a Tirfor which as expected turned out to be far too loud to de-rig during a short scene change. After much deliberation, it was decided that the most effective method involved using an automation winch to create the desired effect.

Having moved a winch to the desired position, we then lowered the line to meet a 15metre wire drift and attached the two with wedge sockets and shackles. we also added a karabiner between the two lines in order to make the release time quicker and simpler. At a lower point in the line (the same height as the top of the curtain a snatch block was used to divert the direction of the line. A ratchet strap was attached to the snatch block and anchored to a scaff bar at a 45 degree angle which would maintain the horizontal position of the line.