Mini Wind Turbine || DIY or Buy 

Diy or Buy? GreatScott: Yes

Whoever designed this thing did an amazing job, the 3d printed turbine looks more commercial then the commercial one

4:45 Even FULLER BRIDGE RECTIFIER! Oops, wrong channel :D

i love how the outro becomes more and more enthusiastic

“Distance of as close as possible” 😄

Building one myself is much more exciting. So, DIY is my choice. Like you said, It's a learning process. The second and third ones will be much better than the original DIY.

your videos are usually the best thing to happen on a sunday, thank you!

DIY or BUY: Handheld vacuum cleaner.

Man, the design creativity in that 3d printed turbine is crazy! Very cool of the creator to release it. Too bad wind is nearly useless around me, but around a big lake or ocean I'd totally build my own.

Both win: cheater mode, you cannot compare the 2. The Nema motor is a big mistake. Inefficient as a generator

Comparing both wind turbines output was fine, but while you gave a cost for the commercial, we didn't get to see an estimated cost for the diy project. A cost per watt for both for both would have been very usefull, and likely a major decesion factor for many. 😊 And lastly, a better test for 2 turbines with different blade lengths is to have the same wind blow across the entire surface area of the blade. Maybe take a box fan (or four), and make wind tunnel.

It's always nice to learn from something you are making rather than just build it, in my opinion. I like the Passive Variable Pitch design shown since it could be used in higher wind conditions.

"Let me know your farts" 10:16

For small to medium wind turbines a vertical turbine is more efficient, also much easier to DIY Thanks for great content!

Verticle wind turbines can spin regardless of wind direction I recommend looking into them

I do believe in the power of a DIY project. It gives you the opportunity to experience and improve the concept. Your DIY wind turbine can be greatly improved. Don't give up!

God I love this series. And I agree with your answer of "yes" in this case

I think DIY is always the winner because LEARNING!

Can you try to build the 50W version too, please? :D

I think the DIY solution is the best one. First of all because as you explained, I teach a lot. And then, also because it can improved to fix all the issues the affect the current design.

4:13 TFW you go in with a dremel just to find threads on the other side been there XD

Excellent presentation. Thank you for sharing and stopping me from buying the commercial version.

So you know, you can add a pause into the print in PrusaSlicer (use a color change or the pause feature in the beta). That way you don't have to deal with the movement while inserting components.

Cool, gerade für uns im Norden eine Idee! Danke für das Video!

Your comparison is truly great! Also, I would defenitely recommend trying out the DIY version with a much bigger motor, or maybe even with the one from the commercial turbine!

I think there is a disc generator (Scheibenläufer) used in the commercial unit. The problem with the stepper motor is the cogging torque of the individual steps. This force is also higher with the used gearing. I recently printed a vertical wind turbine and made such experience. On the other hand you need some kind of MPPT for a wind generator. Or just make multiple load cases. A single point of measurement is not significant for comparism between both units.

Some grease on the moving parts might help regaining some lost power as electricity, i think. And the design is mechanically brilliant but, maybe keeping it simpler and finding a way to make a lighter propeller would help a lot.

With proper design DIY is the winner.

Finally!!!.... I've waited too much!!😎😎

The assembly did not go as planned because it was "Assy". :) Love the videos!

Well, screw my other ongoing projects I wanna make my own wind turbine now.

I have a large (~2-3kw) BLDC motor just... lying on a shelf in my garage. I bet the parts for that 3D printed turbine would scale right up.

Swiss German for "My Wind Turbine" 🙈 = "Mini Windturbinä" Cooles Projekt

That’s interesting, it didn’t end how i thought it would. Great video

my phone is currently charging with 18w. the probably try to sell it as an outdoor energy source but with that kind of output power you're better of packing a power bank of the same size.

This is a subject close to where I live. I am going to attempt to be building a flat pack cabin for up in the Cascades mountains and need to provide power. I will build a DIY wind turbine but from other materials. Great video and you have won 👏 an appreciation day on my calendar.

Nice comparsion. Know I want to build my own wind turbine ;) For comparsion I think you need to also test the generated energy in real environments. Cause in the average I think you get more energy from the diy genrator. And the wind from the leaf blower produce wind only on one spot. :) only some thoughts of mine :) Like your work! Gives me a lot of inspiration

Your videos are some of the few things that I appreciate in life

In this episode of DIY or BUY.... DON'T! LOL. A 10x10cm square PV panel can do about 4W, though you still need a battery for night time.

Just the video I needed for my project "Windmill" Thanks Scott.

4:45 even fuller bridge rectifiaahhh

your level of knowledge, and your ability to explain it to us is amazing and appreciated!

Fantastic work, dude! Really well done! 😃 I bet you could make a few tweaks in the model and use a better motor. Who knows. 😊

the most impressive documentation I ever saw on a thingiverse download!

Actually, I have been waiting my for PCB assembly from JLC for maybe a month now. That's how long they have delayed my project. Not to mention, they had to cancel one of my projects

JLCPCB part literally blew my mind. Nice script :)

Would've been interesting to know how much he spent on filament and other parts.

Scot, the passive variable pitch system is a break to prevent the blades destroying themselves in high wind; looks like your leaf blower put the brakes on and limited your result

I recently bought a hand cranked emergency USB charger. You could do an episode on that

Germany has those free Hardware stores out front of every second house ;) You can get tons of BLDC motors from your neighbors scrap. At the end of the summer I picked up a bunch of fan motors. An old car alternator will work too.

"Their products are healthy" -GreatScott 2020

For the record, I ordered a stack of PCBs from JLCPCB and the same exact stack from a US based manufacturer. The JLCPCB boards arrived today. No word on the status of the US manufacturer. All said and done, the JLCPCB order took 9 days to arrive.

I'm going to do a DIY RBMK 100 nuclear reactor. Makes plutonium as a bonus.

The efficiency was highly reduced by the forward voltage of the Diodes. It was not mentioned if they are shockey ones or not. But lets assume 1.2v for two Diodes. In the buy option an output voltage of around 1.5v can be seen. In this case the loss is a bit less than 50%. At the div option a voltage of about 0.75v can be seen, witch results in about 60% loss.

Someone probably: There wont be enough airflow to make it turn. Also it doesent work in every weather! German Weather: UNLIMITED POWER!

Build one of your own ,you need 2 stator discs 1 for magnets 1 for coil assembly and 1 for rotor magnets.You will need axle and 2 ball bearings and make a housing. Take one of the permanent magnets used in the rotor, and measuring the distance at which that magnet just begins to lift one end of a 32 mm (1.25 inch) paper clip off the table. The optimum length of each coil from end to end is exactly the same as the distance at which the paper clip starts to lift. As of width of the coil its 1.5 times the measured distance.Smaller the magnet more thinner wire you need-thinner wire = less amperage you can use. More coils and stronger magnets you use = less speed you need . People build wind turbines like this by using drum brakes and wheels of a car.You can use round magnets or square,it doesnt matter ,they need to be N/S/N/S polarity.You can experiment and put a core inside a coil to boost effectivnes,but you will create drag-making it harder to spin propeller-which can be adressed by using transmission like pulley for example. Its cheap if you use a old wire from dead appliances like angle grinder for example ,just make sure wire is good to use,you can laminate it again by using spray paint and a rag.if there is a few spots damaged. Cordless drill and a bolt with washer welded makes a good coil winding jig.On other end use a nut with welded washer on it. Hope these guidelines help you ! Happy recycling and windmill building everyone!!!

4:45 *FULLEST BRIDGE RECTIFIAAHHH!!!*

1:50 Good to know they force their workers to keep working during an epidemic, will definitely take that into consideration next time I order pcb's.

MyDealz, i see you are a man of culture as well ;)

When i do my own projects i always watch your videos first

Adding the nut while printing? Sounds like a broken printer / failed print wanting to happen.

Thanks for your time Involving this video. I'm glad I found you by accident. I'm a noobie & don't know anything but I'm eager to learn. This was an eye opener to everything I'm going to need & want. Right now I have very little but I'll find a way to get it as I learn. Thank for the reality check. Lol

9:47 The marker smearing the ink ahhhhhh o_O

Diy or buy Subtitle : DIY OPPAI RU-vid man of culture

Would you make video about cocroft-walton voltage multipliers?

I was waiting for a diy wind turbine for a long time... But was hopping for a bigger one... And a real diy route... Not piy ( print it yourself ) go bigger... Maybe see what it takes to make a car alternator produce some real power... ! I do love your videos but on this one i was hopping for a bit more, knowing that you got the skills!😁 Excuse my grammar! Keep it up 😁

You bought yourself? From whom? 😂

Es macht wirklich spaß zu zuschauen.

Im so high i can only focus on his inhale after finishing every sentence....

The system in the propeller is sensible to the speed of the propeller, because when the speed increses, the swashplate will get away and will give more angle to the blades, and the wind turbine will be more efficient. It is quite normal that by activating one, the other blades don't move, because it is only there to standardize the mouvement, to give to every blade more or less the same angle, but the activator, to give angle is the wind, and not the swashplate. (Well, that's my opinion, I do not rule out the possibility that I am wrong) Other than that, good video, as usual, and good luck !

1:43 LOL!!!

Pvc pipes used into the industry (based on thickness) you could find them in pecialized shops or ordering them.

I love that people can just go "this part does not exist, let's print it". Everyone should be a cogboy, or know someone who is. The more stuff we can make on our own the better.

Seems both designs need a conductive slip ring so the turbine can freely point into the wind without getting bound up. As they are now, wind that shifts direction a lot would cause problems.

Germans are great people. Builders, workers, perfectionists and organized.

You can use Hoverboard motor for wind turbine... Which gives more pawer.

Very informative video. Back to the turbines, I think both are useless for any kind of project. DIY takes ages to build and has poor efficiency. Ready made one is also useless because its price is just prohibitive and power output is also not so great. I think that the best part of DIY one is that you really can learn a lot! Thanks for the video :)

JLPCB didn't have to roast their competition like this !

I've been developing my own plans to use a car alternator instead of the stepper. With larger blades, because POWA!!!

DIY or BUY: Generator with internal combustion engine. With Maximum Power Point-Tracking. I've built one with a Nitro-Engine, a DC-Motor for the starter and a BLDC-Motor as the generator. Looking forward to the test next weekend - Certainly more fun than grabbing a cheap generator from ebay. :)

I was looking at printing the 50 watt turbine but ultimately abandoned it as no one seems to have actually got anything useful out of it, making another video for you :) Great video as usual.

If you have some experience with wind turbines, DIY is definitly the winner. But you need to build at least 3 to 4 turbines to get a good working one.

Peak voltages of motors make diode drop material. Smooth voltage from generators makes active regulation safe.

This is the first video I watched from your channel and it made me subscribe. Great stuff. Look forward to seeing more such content! 🤩

You need a HDD motor and low drop off schotkey diodes with voltage drop of 0.2-0.3 v and then an energy harvesting circuit

Yor have put a lot effort in video, Salute you sir.

I love jlcpcb. I just ordered 3 new designs.

For me a combination would win: Waterturbine on strings, Handcrank and maybe Windpowered...

great scott, i know its a bit off putting but you should always grease the gears because if you want to last it for longer (It is literally plastic while introducing minimal if not barely any friction). The turbine spits out pretty high RPM that would wear down your device pretty fast. just keep it in mind, i live that your going back to power generators. I found them the most fun videoes

I want that marker 3:50 Nice video.

I like to see you build Wind turbines from only the parts you can find in a junkyard.

I simply took a radiator fan from a car, attached it to brushless motor from a laser printer and got average power of 10w (enough to charge phone overnight) and at Apsolute peak I got 50w For something I slapped together in one night it was pretty good wind turbine

I’ve downloaded this guys stl.’s also deeply impressed with his work. Thorough!

I was waiting such a video like that. Ty for this diy or buy video.

The variable pitch is really important to it's start up and running, go back to it at some point and give it another go, maybe sort a better generator for the printed one? Great video keep them coming 👍

The DIY looks like the more fun option. It would also be customisable, in that you could use a better motor as your generator.

I never noticed all your inhale sounds till now. Now i can never un-notice it AAAAAAAAAAaaAAAaa

In a class at college that I am a teachers assistant in we have the students build a wind turbine, and then have a raspberry pi to output the stats of the turbine to a screen such as power, voltage, and rpm, we also have them make variable loads for the turbine. Next year we will have them build a drawbridge.

minimizing friction losses decreasing flywheel weight while increasing sail surface area and of course light lubrication should improve the design I'd be shooting for 3000mw or 3amp at 5v for design specs that'd allow for charging a battery pack and the parasitic drain of a device running on the battery pack as long as the wind blows also thank you for sharing the content ❤

Ive been dying for something like this. I bet it could be improved upon. I'd love to see this and the diy crank cell phone generator become the same project so you could passively charge with wind power and then plug your phone in when you would need that power