Summary

A perfect Christmas gift for Raspberry Pi and Renewable Energy lowers.This complex design is an interactive Renewable Energy demonstrationRaspberry Pi (RPI) case with a process diagram about the wind solar hybridelectricity generation. It contains a lot of recycled element. This design hasa fully functional and adjustable (reversed direction to use like a fan) windturbine, and photovoltaic cell which can recharge the power bank. It hasalso a red LED on the top of the wind turbine which is blinking and another blue LED which operates as a street lamp. Both of them areprogramable from the RPI. The RPI can be used as a server and in this caseit is a server cabinet.

You can customize this case with your own side walls.

Watch my short demonstration video:https://youtu.be/2rNdK6mnyPs https://www.youtube.com/watch?v=YhQLmHbD7sI

Gadgets > Computers

windturbine renewableenergy raspberrypi photovoltaic

Dombi3D

Renewable EnergyDemonstrationRaspberry PiCabinet

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updated 18. 12. 2019 | published 14. 12. 2019

3D M

ODEL

ONLY

Category: DIY Print Settings

Notes:

Walls:Infill: 100%Layer hight 0.1mm

The smaller side walls are made with the so called Lithophane technology.You can make your own picture with the help of this app from this site:http://www.thingiverse.com/apps/customizer/run?

The front panel diagram is made in Solidworks.If you have a 0.2mm nozzle than I could recommend to use it for the bestquaility.

Base:Infill: 30%Layer hight 0.2mmIMPORTANT:Do not let the slicer to make support material inside the cable tubes fromthe lamp and the wind turbine. The long rectengular shape in the middlecould get support because it is easy to take off.The Base part should get around 100°C (I used PLA) or even higher bedtemperature to avoid the Warping effect.

Turbine blade:Infill: 100%Layer hight 0.1mm

Lamp + Lamp cap, Turbine parts, Display Frame:Infill: 100%Layer hight: 0.2mm

How I Designed This

The hardest to design geometry from the model is the wind turbine blade.I used these instructions to make my own blade profile.

http://blogs.solidworks.com/tech/2015/08/create-wind-turbine-blade-using-surface-lofts.html

You can find profiles from here:http://wind.nrel.gov/airfoils/shapes/S809\_Shape.html

I also made an adjustable angle turbine blade concept, check it out.

RPI sizes:https://www.raspberrypi.org/documentation/hardware/raspberrypi/mechanical/RPI-3B-V1\_2.pdf

Custom Side Pictures

For your own side walls the recomended picture sizes:88mm x 54mm x 0.8mm base plate and 78mm x 50mm picture area(5mm frame at the sides and 2mm from the top and bottum) which hasnormaly 2mm additional thickness but it is up to you.

Costumizable side picture recommended sizes

Wiring

I have built in a reset switch for the RPI to make it more confortable.It has a slide switch for the wind turbine.Every cable runs inside the modell so be carefull how do you print it out.(see the print settings).For the LED-s I used 220 ohm resistors between the RPI GPIO pins and theLEDs.For the Reset button, you need to connect it to the RUN pins, that arelocated on the board. You need to solder some connector pins on it if youdo not want to solder the cables directly to the board.

Street Lamp wiring:The positive side of the LED is connected to the GPIO17 pin (which isnotionally the first user GPIO pin. It’s physical location is pin 11 on theGPIO connector), the negative side is connected to one of the ground pins.(pin 9 is handy for this purpose)

Lamp LED wire path

Reset button wire path

USB to slide Switch to DC-DC converter wire path

DC-DC converter out to DC-motor wire path (The red LED is goingthrough in the same way just it is connected to the RPI)

Wire connections: reset switch (Blue, White), Red LED (Red.White), Blue LED (Green, White), Cooling fan (Red, Black)

Raspberry Pi setup

The red LED on the top of the wind turbine is connected as an ACT LED onthe RPI so it is always flashing when the RPI working.

To set up this, you need to add the following line to /boot/config.txtYou can type into the terminal that:

sudo nano /boot/config.txt

Than add: (I used it on GPIO26)

dtoverlay=pi3-act-led,gpio=26

ctr +x,yEnterAfter reboot, it should work.

Street Lamp setup:In terminal simply type:gpio mode 0 out (this means that we set up the pin for output)gpio write 0 1 (here we turn it on)

if you want to turn it off you can type:gpio write 0 0

If you want to write a program for this you can follow the instructions fromthis link:https://thepihut.com/blogs/raspberry-pi-tutorials/27968772-turning-on-an-led-with-your-raspberry-pis-gpio-pins

List of Materials

I used a lot of recycled parts but I searched on the internet some similiarones which are fit to my modell.My DC motor and slide switch is from a broken RC helicopter,The cables and LED-s are from an old PC case that somebody thrown out.The cooling fan is from an old graphic card.

Display:https://www.youtube.com/watch?v=dr9YGyOCWbM

DC motor:http://www.ebay.de/itm/3-7V-25000RPM-18-x-12-x-10mm-Body-Micro-DC-Motor-for-Airplane-Model-/192057583914?hash=item2cb786292a:g:t4sAAOSwZQRYV~gA

DC-DC Converter:http://www.ebay.de/itm/301588715679?\_trksid=p2057872.m2749.l2648&ssPageName=STRK%3AMEBIDX%3AIT

Model Files (.stl, .3mf, .obj, .amf) DOWNLOAD ALL FILES

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LED-s:http://www.ebay.de/itm/Transparente-High-Quality-LEDs-Leucht-Dioden-in-verschiedenen-Grosen-und-Farben-/171370401875?var=&hash=item27e678d053:m:myDHtgaZcdvr4vHanhSXiCA

Switch button:http://www.ebay.de/itm/10pcs-SS12F44G4-1P2T-3-Pin-DIP-2-Position-SPDT-Vertical-Slide-Switch-for-PCB-/262234663122?hash=item3d0e6768d2:g:Z5oAAOSwT6pVkQP6

Reset button:http://www.ebay.de/itm/10pcs-8-5-x-8-5mm-x-18mm-Momentary-Tactile-Tact-Push-Button-Switch-DIP-Black-Cap-/291580828727?hash=item43e3925c37:g:IAUAAOSwdvpWENhQ

PowerBank:http://www.ebay.de/itm/222312659492?\_trksid=p2060353.m2749.l2648&var=521156094361&ssPageName=STRK%3AMEBIDX%3AIT

Fan is from this board, but it is better if you search for a 5V small fan it hasenough space to built in up to 60mm fans:https://www.asus.com/Graphics-Cards/EN7300GSHTD\_Series/

Keyboard:http://www.ebay.de/itm/Rii-Mini-K12-Bluetooth-3-0-Tastatur-mit-Touchpad-aus-Metall-Retoure-/332075562031?hash=item4d513ef42f:g:mk4AAOSw44BYZOLt

lamp_cap.stl

lamp.stl

turbine_engine_house_holder.stl

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turbine_blade_holder_cap_adjustable_angle.stl

side_picture_with_sun_pv_windturbine.stl

dc_motor_shaft_adapter_1mm_to_4mm.stl

generator_house_cap.stl

front_side_process_diagram.stl

turbine_stand.stl

side_picture_of_the_3d_modell.stl

turbine_engine_house.stl

base.stl

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Find source .stl files on Thingiverse.com

The Author has not uploaded any print files.Try to search in User print files section or generate and upload yourown.

batterypack_pin_back.stl

top.stl

turbine_blade_adjustable_angle.stl

turbine_rotor.stl

batterypack_pin_front.stl

turbine_blade_holder_adjustable_angle.stl

License

This work is licensed under a Creative Commons (4.0 International License)

Attribution-NonCommercial

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