Azur Jahić Posted November 18, 2012 Share Posted November 18, 2012 i make this fan using jigsaw press board and i crank it with my breast drill but i think its need more details Quote Link to comment Share on other sites More sharing options...
Rashelle Posted November 18, 2012 Share Posted November 18, 2012 Hi Azur, A couple of things I can see right off. Others may have more and better suggestions. The fan box would need to be sealed, you're losing pressure out the sides, also a closer fit with wider blades to move more air/higher volume in the space provided. A breast drill also is only giving a low revolutions, gearing to increase revolutions per crank would be more efficient. If using press board as the building material why not try something along the lines of a box bellows like the Japanese use? Seal it good and make sure it works on the push and pull should get constant air flow. It's good you are doing this. Keep us posted as to how things are going, and what you decide and do. Quote Link to comment Share on other sites More sharing options...
Azur Jahić Posted November 18, 2012 Author Share Posted November 18, 2012 i have some press board i think i will try to make a box bellows Quote Link to comment Share on other sites More sharing options...
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