Monday, 04 September 2023 13:47


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Blow the light!

This project is a very cheap and sustainable way to generate light. The project involves the design, manufacture and assembly of the windmill itself, and the connection between the windmill, the electric motor and the light bulb

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Additional Info

  • What you will learn:
    • Engineering:
    • - Designing and assembling the parts of the proposed solution.
    • - Learn about industrial design tools.
    • - Learn how to use them and design their own windmill
    • Technology:
    • - The different forms of energy and its transformation, the use of wind as an electricity generator.
    • - Manufacturing processes in general, focused on additive manufacturing and mostly on 3D printing
    • Math:
    • - Measure and calculate different areas, surfaces or volumes in order to develop the project.
    • - Manufacturing processes in general, focused on additive manufacturing and mostly on 3D printing.
    • In general: Being able to design, manufacture and use a real object for a specific purpose
  • Expected Time:

    From 5 to 10 hours

  • Materials & Recycled Materials:
    • - PLA for 3D printers “RECYCLED”
    • - Free software (CURA and ONSHAPE)
    • - Mini electric motor (3-6V, DC) “RECYCLED”
    • - Light bulb (3V, AC, E10 base) “RECYCLED”
    • - Light bulb base (E10) “RECYCLED”
    • - A laptop with a CAD designing free software (for example, ONSHAPE) and a 3D pirnting slicer (for example, ULTIMAKER CURA)
  • Guide:
    • The project can be carried out from the beginning, designing each of the pieces, printing them and assembling the whole. However, it is also possible to download the files corresponding to the project, print them and only assemble it. The guide is designed to be done from the beginning, and the steps are as follows:
    • 1. Freehand, design the assembly. The type of windmill, the way in which the movement of the wings will be transferred to the electric motor, the assemblies between the different parts, the place where both the motor and the light bulb will be placed, etc.
    • 2. Once the basic design has been thought out, each part of the windmill will be designed by computer (in this case it has been done on the ONSHAPE platform), and once the design has been completed, each part will be exported in STL format so that they can be printed.
    • 3. Using Ultimaker Cura, Prusa slicer or any other slicer software, the mill parts will be printed (in this case, Ultimaker Cura has been used).
    • 4. Once all the pieces are printed, the assembly will be easy.
    • - 4.1. In the case of using this windmill, the trunk is built with the following parts: There will be a lower base (or lid), a hollow cylinder with holes in the surface to remove the cables, another small base to support the motor, a hollow cylinder that will go over the base (which will house the electric motor) and a final solid cylinder that will transmit the movement to the motor. This will be, on the one hand, attached to the motor and when it rotates it will also turn the motor. On the other side of the cylinder will be fitted the 4 blades, alternating vertical and horizontal, which will generate the movement.
    • - 4.2. Between the motor and the bulb the assembly is very simple, from each lower notch of the motor a cable will be connected to the notch at the base of the bulb.
    • 5. The movement of the blades must be extremely fast in order to light the bulb. If this is not achieved, a gear can be inserted to increase the rotational speed of the motor.Just download the available stl files, print each of them and assembly the windmill.
  • Further Steps:
    • After designing the solution to this project, the next step could be thinkig off a more automatic solution or make it on a larger scale so that the light achieved can have other applications
  • Software used in the project:
  • Difficulty level: Easy
  • Developed By: Politeknika Txorierri - ES


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Read 178 times Last modified on Thursday, 23 November 2023 11:59

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