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lulu109

Eolienne Wind turbine

by lulu109 Aug 24, 2018
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Inspired by but honestly I had nothing more than the 2D file you can see here.
Then there are a lot of approximations in my design.
However I am proud this design has quite a nice sucess.
New Wind turbine with waterdrop shape is coming.

It's a Nordex N 60 for those who are interested.

where you able to print the blades in a single print or are they two pieces glued together?

I printed all the blades horizontaly. That means you need support. On the CR10 you have to put one blade at a time and in diagonal to have maximum length. Then rotate the part and adjust the height to minimize the support. I think it can be printed verticaly, even in vase mode but I never tried.
You will have to sand the side of the blade which is in contact with the support.

Could you upload the CAD files for it? I'd like to make some modifications.

The blades are twisted the wrong way. The angle of the tip chord relative to the centerline should be lower than the base chord's angle because the wind relative velocity is higher at the tip. I'd like to fix that.

Looking for an answer here as I am a little bit new to 3D printing. As far as this wind turbine goes is the 1/400 the smallest one? I am trying to print one to go on a N scale train layout and I want to get it to be a reasonable size on the layout. I would appreciate any help I can get. Thanks

Hi, thank you for your interest.
The STL files are for the 1/100 . The real thing is about 100 meters high with blades diameter of 60 meters.
The stL files mean a wind turbine 1m high with blade diameter of 60 cm.
As far as I know N scale is 1:160 that means the wind turbine will be 62.5 cm high.
To get this N scale you should print the parts with a print scale factor of 0.625 and you will get this wind turbine at the N scale to fit your layout.
Hope this answer will help you. Thanks again for your interest.
Please share the final result on your layout, I will be happy to see this design on site.

Is it possible to get remix your design, want to add some components that I have.

Dear Thomas, can study if possible. what do you want to be remix ?

Hi,
first of all thanks for this great design. But are you going to do a assembly video? In my opinion there are many holes i don't know what to do with. Would be great if you would add something like this. :)

Hi Orjginal.
Thanks for your interest, I made this design according my view of assembling. possibility to replace broken parts or possibility to reuse some parts like the mast. Sometimes my first idea was not reliable enough and I finish with some glue like for the 3 blades orgininally designed to be screwed on the rotor. I didn't plan to make an assembly video yet, the turbine is in my wife classroom now I need to print a new one to make the video. Will probably do it later as this design seems to have a nice success here.

Love it! Will definitely print one (or more!)

Thanks Deebes, Appreciate.
Please share your print, Nice to see she will have some sisters

Nice design !
I plan to print the big one.
Do you remember which motor and self flashing LED you choose ?

Hi Shoune, thank you for your interrest. I am so surprised so many like it.
I have just updated the description adding the references for motors and leds.
below the part added

Following request about motors and Led :

Motor for the 1/100 one : https://www.ebay.fr/itm/Micro-20mm-Full-Metal-Gearbox-Gear-Motor-DC-3V-6V-33RPM-Slow-Speed-Robot-Car/122895314585?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
With 3V Rpm are 15 approx.

Motor for the 1/200 one : https://www.ebay.fr/itm/Micro-Speed-Reduction-Gear-Motor-with-Metal-Gearbox-Wheel-DC-6V-30RPM-N20/272520292077?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
With 3V Rpm are 15 approx.

Self flashing Led 5 mm : https://www.amazon.fr/gp/product/B00WX3284I/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1
Need a small capacitor between + & - to flash

Self flashing led 5 & 3 mm but christmas tree style : https://www.ebay.fr/itm/3mm-5mm-LED-Fast-Slow-Flash-RGB-Water-Clear-Light-Round-Top-Emitting-Diode-Lamp/263806421271?ssPageName=STRK%3AMEBIDX%3AIT&var=563126768274&_trksid=p2057872.m2749.l2649

Hope you will enjoy this prints and assembly.
You need also 2 ,x 2 AA coupling, connected in // to increase capacity and a switch to lets power going to the motor and led.
The House is made to cover the switch. magnetic switch will be nice and seenless.

Have you tried actually generating power with one of these? Are the blades true to shape?

Hi Ramjet, Absolutly not. This is a room model :) , I made it according general dimensions. Blades have a shape to look similar to the real thing. It even include a hollow profil. You put me in front of a challenge : Do this thing can generate power ?
Let me think about it. I will probably include real shape to the blade as there are already two (pure invention) , one at the bottom and one at the top. And finally connect a generator instead of the gear motor.
Next point : adding a rotation of the housing to follow wind source.
Challenge for my next hollidays because these are almost finished :(

Actually generating power should be as easy as putting on correctly shaped blades right? The motor should generate power if it is spun by the wind, would it be better to use something made as a generator?

The motor should generate power, but keep in mind that it will be alternating current. It will have to be rectified to Direct Current in order for it to be used (i.e. to charge a battery, power an LED, etc). You can build bridge rectifiers with four diodes. I made a wind powered LED lit whirlygig a few years ago. See the motor (generator) output and rectifiers here: https://www.instagram.com/p/5QtO_IM3lF

To get enough current output, the stepper motor that I was using couldn't be driven directly. I had to do a 4:1 ratio to get the motor to spin fast enough. I'd guess that the motors used here would also need to have some gearing to spin them fast enough for usable current.

Here's my pulley setup that charges a capacitor and lights two led's https://www.instagram.com/p/5gNP5CM3uL

I am kind of new to electronics, I can't wrap my head around why rotating a DC motor in a single direction would generate AC?

Actually, the motor used here looks to be a brushed motor, which I believe will output DC. I was using a brushless stepper motor for my project which produces a sine wave whose polarity (positive or negative) changes each half cycle.