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workshops:public:nite_kites [2017/11/09 08:56]
peter [Night Kites]
workshops:public:nite_kites [2019/12/03 15:37]
Peter Musk [Instructions]
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 ==Fans== ==Fans==
  
-Computer fans were obtained from recycling e-waste (though fans with two wire worked best). Fans from power supplies and internal CPU cooling were used. After initial testing, it was found that most modern equipment used fans with motor controls that were much harder to retrofit. Increased weight was also a concern. Subsequently, this approach was rejected in favour of attaching  propeller blades directly to the shaft of the DC motor+Computer fans were obtained from recycling e-waste (though fans with two wires worked best). Fans from power supplies and internal CPU cooling were used. After initial testing, it was found that most modern equipment used fans with motor controls that were much harder to retrofit. Increased weight was also a concern. Subsequently, this approach was rejected in favour of attaching  propeller blades directly to the shaft of the DC motor.
  
 ==Membranes== ==Membranes==
 Kite membranes were made from large garbage bags (wheelie bin size for the large kites).  Kite membranes were made from large garbage bags (wheelie bin size for the large kites). 
  
-A template was developed to help participants create accurate shapes: the template was one half the kite, split vertically. - using an existing crease in the bag made this more efficient. Although black bags are more readily available, green or preferably orange bags make it easier to see the template outline after it was drawn.+A template was developed to help participants create accurate shapes: the template was one half of the kite, split vertically. - using an existing crease in the bag made this more efficient. Although black bags are more readily available, green or preferably orange bags make it easier to see the template outline after it was drawn.
  
 Because the final design required the membrane to be taped along the edge before cutting for added strength, initial cutting from the bag was about 1cm larger than the template. Because the final design required the membrane to be taped along the edge before cutting for added strength, initial cutting from the bag was about 1cm larger than the template.
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 ==Propellers== ==Propellers==
  
-Prop blades were hand cut from 18mm  black irrigation low pressure polypipe using a paper template. The template design is here: {{ :workshops:pasture:night_kite_propellor.ai |}}. The central line needs to run along the long axis of the pipe for the correct angle to result (this is important for optimal operation). Taping the template to the pipe made for easier cutting. Two perpendicular blade assemblies were attached to each motor (after punching a hole at the centre point with a sharp screw), giving a 4 bladed prop. The blades are mounted with the concave face forwards, and held in place with a dob of hot glue if required.+Propeller blades were hand cut from 18mm  black irrigation low pressure polypipe using a paper template. The template design is here: {{ :workshops:pasture:night_kite_propellor.ai |}}. The central line needs to run along the long axis of the pipe for the correct angle to result (this is important for optimal operation). Taping the template to the pipe made for easier cutting. Two perpendicular blade assemblies were attached to each motor (after punching a hole at the centre point with a sharp screw), giving a 4 bladed propeller. The blades are mounted with the concave face forwards, and held in place with a dob of hot glue if required.
  
 ==Motor support== ==Motor support==
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 Facilitators instructions are here: {{ :workshops:pasture:nite_kites_facilitator_outline.docx |}} Facilitators instructions are here: {{ :workshops:pasture:nite_kites_facilitator_outline.docx |}}
 +
 +Design files for propellers, Joule Thief circuit and 3D printed kite dihedral are in this folder:
 +{{ :workshops:woodford2017:design_files.zip |}}
  
 =====Evaluation===== =====Evaluation=====
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 Material costs are low. Material costs are low.
  
-==What Didn't==+==What Didn'Work==
  
 The workshop consistently ran overtime - at least 3- 4hrs is required. The workshop consistently ran overtime - at least 3- 4hrs is required.

We acknowledge Aboriginal and Torres Strait Islander peoples and their continuing connection to land and as custodians of stories for millennia. We are inspired by this tradition in our work to share and preserve Queensland's memory for future generations.