Social Wind: development of the yellow motor holder
February 9, 2015
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The 3D printer allows to make a nice connecting shape between the textile and the electronic hardware. For “Social Wind” i have chosen 3 phase motors:
The problem (in the old days) was how to sew the motors inside the jacket. Nowadays this is not really easy using the 3D printer, because you have to print quite a lot of tests, but you arrive at a nice holder of the same color as the fabric – or the color you need.
The cooling effect comes from ventilators, not for example Peltier elements. The ventilators provide a gentle cooling effect and are at the same time a nice moving shape. The Peltier elements would be inserted in the fabric and not even visible. This leaves absolute freedom for the design, but hides the functioning.
The development of the shapes to hold the motor in this jacket can be seen in this picture of all the shapes printed for these 5 motors which will be sewn in the jacket:
First I tried to print the whole ventilator as one piece. No doubt with an expensive 3D printer this could be done, but with my terrible ROBO printer a better option was to print the axis and the blades seperately.
Because the five ventilators will be running close to each other, the ventilators rotate against each other. This has to be tested first:
Later on the axis were made higher and lower, so the ventilators could run close together.
All the five attached to the microcontroller:
The motors run at 5V which is probably too low. So the power of the motors is big enough for small blades, but these blades are to big if you start right away at a fairly high speed. The solution was to start slowly and build ip momentum. Then the motor can rotate these 5 blades without a problem.
The STL files will be available soon.