Quote:
Originally Posted by Shortie771
Grabbed wht I could find around the house... Fishing line, toothpicks, cardboard, super glue and some screw (used for weights). I made a mini prototype of a version of the blind style, but I changed it.
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If it turns out in practice the weights don't work as well as you would like you could also design that counter force with a spring... If the weights work good enough in practice , it might be easier to fabricate.
Quote:
Originally Posted by Shortie771
Thanks for all of the info. I am still not understanding the screen style. I guess I just can't picture it for some reason.
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For the basic flat plate version of the screen attached bellow are some quick crude pic I slapped together... Red and Blue indicate the different holes from the different screens... to Go from open to closed the front screen only has to move the size of the hole ... it can be designed to move vertically or horizontally.
For the 3D shaped version ... just think of a basic fixed angle blind ... mini size between the holes ... as the wind speed increased the force on that 3D surface increases the force on that front plate to move toward a favored design position ... which could be side to side or up down ... if side to side a spring or something might be needed to reset it when the high speed wind force is gone ... if it is up and down, the weight of the screen can pull it down as long as the slides are smooth enough.
The holes don't have to be circles , a variety of shapes could be used ... and the 3D surface doesn't have to be a flat fixed blind style a variety of 3D surfaces could be used.
Does this help picture it any?
As before ... the blind style can work fine... I'm not trying to convince you of any one method.