CRAZY LOUD 3D Printed Tornado Siren | Elegoo Mars
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- Опубликовано: 5 окт 2024
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A few videos back I turned a Noctua A12x25 fan into a siren, it worked but it was only around 70 dB, impressive for a 2000RPM fan but nowhere near real siren sound levels. You all asked me to follow up on that video and make a Tornado siren powered by my miniquad motors, so today that’s what we do
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Your power supply isn't man enough for that motor. You can see the voltage drops at full throttle so your 12v and 16.6v runs were both at the same voltage (~8v) and power (~40w). It would also be worthwhile moving your spl meter further away to get a more comparable reading to other know noisy things, I know it makes it harder to film but the standard for spl testing is usually 1m from the source of the noise. As sound level reduces by 6db every doubling in distance, it is very difficult to get consistent measurements if you're close to the source. For example, your 120db looks about 10cm away, it would be 114db at 20cm, 108 at 40, 102 at 80 and probably about 100db at 1m
Cheap way of fixing the power struggle - get a cheap 400W(or more) boost converter and connect it to a pc psu, preferably the most powerful 12v rail (take into consideration that you'll either need a) "multiple leads to that rail" or b) "one thiccc wire (awg8 or thicker)". You're likely gonna need one of those watt meters that has wires coming out of both ends for volts/amps/power, but you're gonna have a 400w (likely less due to psu limitations) variable power supply.
I was just about to say 42w is not 83w lol. I uave a feeling that power supply is only rated at 40w. So u cannot run it at 30v and 5a. Its unfortunate but u have to go by the wattage rating when buying bench top power supplys like that.
a PC power supply can be modified very easily into a bench power supply and they supply large amounts of amperage on the 12volt rail. it would at least let you get full throttle at 12 volts.
I beleave he did a video using a atx power supply to run that motor on a fan on a 120 rad and it pulled over 300w...
@@spcolsson I think you're right, he'd need a 30a+ adjustable supply, but it's hard to find one with more than a couple of volts of adjustment. He's probably better off just using 3s and 4s lipo batteries for the different voltages
If the question is "Should I get a bigger..." the answer is yes. *Always* yes.
@@ieatchickens should I get a bigger rope
...income tax?
@@ApusApus If you're asking the question, 'SHOULD I pay more income tax?' you can afford to pay a bigger share, so yes =P
Uh, the Elagoo Mars has a pretty small print volume at 4.53"x 2.56"x 5.9". So it can make the fan for a 120mm fan but not the frame. But for the power supply, yeah a chunkier one that will do 500w+ will make a difference.
I would like to see a Boat propeller either full sized or to a scale. Or a helicpter blade and the shell with a quad motor on it and I will pilot it for you.
Imagine giving someone a pc where all the fans are replaced with these.
That should give you a good idea what it was like back in the early days of overclocking when people used insanely noisy Delta fans to get massive airflow.
Subtitles: [music]
I can absolutely see someone using something like this as psychological warfare. Shit, I wish I had something like this when I was in college
"open chrome"
Fan: incoming air attack
@@coldperson8404 I can't even XD!!!! LMFAO
you maxed out at 8 volts with the power supply. the 0-30V and 0-5A ranges are the maximum limmits (regulated cc/cv) that they can put, not the max power it can provide. 16.6V@3.4A triggered CC mode and it dropped the voltage in half to keep the current...
They're also likely the "China" limits ... take those with a grain of salt. I usually cut them by 33% as a rule of thumb, because they're rarely accurate. Heck, half the time they just copy the values from the product they're cloning and don't actually test their own product. You see that on a lot of products as well.
I have no idea what this means because im tired, but I'll like it anyway
Yes he’s just another wannabe electronics RUclips hack that went to frys to get his education and now wants to make a bunch of money giving bad advice to ppl that don’t know any better
@@cedricvillani8502 whats with all the spite? did someone beat you as a child?
@@cedricvillani8502 What? He/she is correct
Ok, so that set my dogs off, and i'm wearing inner-ear headphones... Sweet, fan go REEEEEEEEEEEE!!!!!!!!!!
lol, I am listening on speakers and my dog is looking around like a lunatic.... I hope his dog has ear defenders.. :)
Ouch
Lmao it sound like that one little rolling shit in star wars
Even my cat ran off when I played this video on my laptop... Never seen him do that for any sound other than fireworks.
"5 amps should be sufficient" said no one. EVER.
more like 500 as a minimum, lead-acids rule
I bought the exact same power supply myself. First dc motor I was testing with it hit went into CC mode at around 18v... Haha
@@virtualtools_3021 no actually lead acids suck in nearly every way
I have just built a custom power supply that has 3 outputs with one that has 1-19volts with 9 amps, one output with 40-390volts with about 200ma, and one output that has 19-84volts with up to 20 amps, i still doubt if that gonna be enough lol
Takes less than 1 amp to kill someone..
It would be nice to see the performance difference between an FDM printed fan and an SLA printed fan.
I'm sure that can help to close the gap to Noctua's fan designs.
I was going to say the same thing. A smoother surface would have to produce better results.
69 likes, let’s keep it that way
I said that also few times ;) Another like for you!
I’m so happy you decided to make it better.
I'm so happy you made this comment
@@ThePancakeGuy1337 I'm so happy you made this reply
Congrats for the sponsorship, you deserve much more exposure!
Ha... wow
I always thought that the coarse printing was a limiting factor with those fan made... uhh... fans. Causing extra drag/turbulence etc. Shouldn't be a problem with resin.
Iwe always preferred those "dive dive" submarine sirens and those big ass horns that just go "ahoouuuuga"
Edit: klaxon horns
Have you seen Technology Connections video about those? It's really good. :D
I can hear the noise through the text..
@@BRUXXUS iwe seen it yes. On second thought its probably not the best siren to 3d print since it uses a metal diaphram to create the noise.
@@BRUXXUS AHOOOOGA
Ive been using simple green to wash my prints cause it was the most available option in my area especially with corona being a thing and making rubbing alcohol expensive and harder to get, oh and also dunking the parts in warm-hot water from the tap to break free supports makes a huge difference
I'm loving this. I cannot say why your channel found my feed, but I'm glad it did. Who knew 3D printing fans and shit would be so entertaining somehow.
Right? Same here. Just showed up randomly one night and now I'm a FAN...get it? Cuz you know, he makes fans...
@@Vares65 Haha
Overclocking electronics😎
You’ve got to look up some of the PhotonicInduction videos to see overclocked electronics.
14:20 - 14:50 my laptop when i play roblox
Thanks for being the only video out of 10 videos on 3d printed sirens I watched that *actually bothered* to measure the loudness!
You hit current limit unlike a lipo you only have 5 amps you need more it was only 5amps 8.5volts not the 12 or 16 that you said
i feel like the jet engine like fan should be retested with the higher rpm
Definitely. With the resin, it might also not self destruct, and he can get better taper control for the blades
The progress bar for the ad is much appreciated
The IPA can be used indefinitely. Put it in a glass container and leave it in the sun, the resin will cure and precipitate to the bottom and can be filtered.
I'll try this
I suggest a rerun of the top contending fans using the resin printer! I have a winner in mind and it's not the currect leader
Congrats on getting a sponsorship! I love your stuff! Keep it up!
*makes Tim the tool man taylor noises*
“More POWER!!!”
I'm glad you returned to this idea. I really enjoyed it the first time. This time too.
I think this has been one of the better endorsements for SLA printers I've seen. Something about it seeming more on the "you could do this" side of things rather than making a huge point of harsh chemicals and things being messy in general. Perhaps when I get closer to caught up on other stuff I'll more seriously consider getting one, although currently I don't think I've got a lot in the works that can't be done well enough with the FDM printer I've already got.
That fan was so loud it gave me chills down my spine
I have the elegoo mars and I use it to print my 3D sculpts, I love the detail on the prints, it’s honestly just so awesome
Hi from the Kenton area! Another great video! Just bought my first 3d printer and I haven't love/hated something so much in a long time.
Kenton area thats where I'm from
@@MajorHardware Nice!
I just had the 4,000th like, I’ve never been so satisfied seeing one of the huge numbers change when I click it.
You can clearly see in the footage that the motor wasn't running at 16V and 5A! As soon as the RPM gets too high, the PSU hits the 5A limit and drops the voltage to around 8V which in turn lowers the RPM and balances things out. You were only feeding the motor 40 watts in both 12V and 16V tests because both times the PSU couldn't output more current and dropped the voltage! I strongly recommend if you buy a bigger PSU, test the motor carefully again as the print is likely to explode at those higher RPMs, here you were saved by the massive voltage drop.
And there goes my tinnitus. And made my cat go crazy. Still extremely awesome.
I really like the idea of getting a few of those sirens and hooking them to the internet so if someone breaks in you can remotely drive them out
The fan showdown will be better with a SLA printer. The ridges you get with the standard printer causes drag which reduces the efficiency. The smoother a finish on a fan or propeller will increase air/water movement/displacement. These differences in a short-term application wont be very visible but along a more long-term constant usage such as your tower's fans which plays the most important role. The manufacturer's engineers spends weeks if not months gathering statistics and making necessary tweeks to their design. With this knowledge in hand I'd have to say that you most likely wont beat the A12 with printed parts. Not impossible to achieve this task but improbable without having proper knowledge and experience of the task as a whole. I'm very excited to continue following the Fan Showdown series because it is going to take a legend to bring down that A12.
IPA is totally fine in ultrasonic. I have been using it for over two years, the only problem I ever had with it was it evaporates quickly if the lid is open while it runs. No need for any extra precautions, just a fire extinguisher if the machine craps out but the fumes themselves won't be able to light a fire at this small scale.
Loved that build montage! And congrats on the sponsorship! Great work!
I love the SLA printers, just they often has such a small print area, and larger ones cost a fortune.
Luckily the technology keeps evolving at a high pace, so looking forward to what the future has for 3D printing.
I still want to know how well the air-raid siren A12 "fan" does for cooling. Can it beat the "Dr Evil Rocket-ship" design?
Sadly that one died in the last fans showdown
It may not be on the leader-board anymore, but it is still technically the lowest score to beat. I want to know how does the air-raid A12 do.
That's a crazy sound, reminded that old police vans hooting on the streets during the lockdown
If you're too cheap to get an ultrasonic cleaner, then the Ikea salad spinner has been working SUPER well for me. It lets you spin the salad basket in both directions, so you can get some really good agitation with your cleaning solution.
As one of the people bugging you to get an elegoo mars for fan printing. I 100% support you using it to make more accurate prints of fans. It'd be cool to compare the same fan designs printed in resin against fdm printed to see if there is any improvement of performance.
Congrats, you quite literally made a tiny tornado siren as loud as a jet engine.
My recomendation is to get another power suply, you can se at wide open throttle that the voltage drops to around 8v so both 12v and 16v runs were at the same power output. You can run multiple power supply in parallel to get more total power but they have to be set up for delivering the same current (if one gives more than the other, it can damage the one that has less amperage (so if you had one that can go to 5A and other that can go to 10A, you have to run both at 5A) for more voltage the same rule aplies but you have to conect them in series.
With your ultrasonic, you can use ziploc bags with IPA in them along with your print, the ultrasonic will go through the bag and the fumes are contained within the bag.
I use this method in my ultrasonic with IPA in a bag for greasy differentials + 3D resin prints.
This is officially the #1 video on youtube not to wear headphones while watching. Yikes.
Even on speakers it was rough enough I had to turn it waaaaaaay down. Super cool though!
real men wear headphones
Here you go xD Matthias Wandel made an air raid siren out of wood :D ruclips.net/video/2Tr6hCZAVhI/видео.html&ab_channel=MatthiasWandel
i was unlucky to have exactly wrong frequency headphones i think.. in like 10yrs of using them this is the first time something damaged my ears to the point of pain. im serious. fk..its like 10minutes and i still hear beeep in my ears.. please do a warrning in vid description.
Your neighbours must love you xD
Video Suggestion ...
One video you may want to do in the future is a cost (cost-per-print, maintenance, benefits to each, time-to-print [with cleanup], etc.) breakdown of printing the same model in FDM vs. Resin. Most of the ones I've seen don't do a thorough examination and I think you're just the person to nail the details on such a video.
Wow it looks like a Model ASC RM 130 siren
Neat! That's built like an American Signal RM-130 siren!
Dude, u really a a hidden gem. I like ur stuff!
Definitely would like to see future fan blades printed with this!
Can you 3d print a fishing rod and reel? I think the rod would be the difficult part but...a 3d printed fishing rod that breaks down to 9-16 inches and assembles into a 8 foot rod and reel would be awesome!
You could try some ducted fans of a similar size. Perhaps seeing how much thrust they put out. They might be useful in some other projects? That Elegoo Mars does a great job.
everything is flammable if you get it hot enough and have the correct oxidizer
The rotor spins CW, seems like it is built for CCW.
Depending on the fdm material it can be far stronger than resin. FDM can also have many more types of material such as flexible, conductive, and then just the straight up sturdy ones.
Just food for thought, a true air raid siren makes 2 separate tones. You should do that.
This is a good time to bring up a point I've been wanting to make for a long, some of the fans you tested had a low dB, but could possibly perform better if LCD was the sound level.
Absolutely retest in resin!
Hey man, love your channel! You found a pretty cool niche :)
Considered doing a re-print of your best performing fans with longer times or whatever can make them better? Is this resin printer better for the best performing models, and do top 10 runner ups or bad prints need a re-run?
Your cooling tower video is so cool. I want to do this, but would mist instead of drip...
I'm no expert but I recently got the Elegoo Mars, mainly for printing minis but I also like to make functional things (spare parts for my kids toys or a tabletop vice etc). I had some issues to start and got some advice from a bunch of people, so some of the following is regurgitated advice and I'm sure you've probably looked at this stuff anyway. For functional parts I can highly recommend getting some Siraya Tech Blu resin, it's so much stronger than normal stuff. Also, if you're finding stuff is sticking to your FEP, you might want to check your bottom layer exposure time, somewhere between 60 - 80s should do you. Also depending on the resin, you may need to adjust your standard exposure time, for example, for normal Elegoo grey, I use 70s/8s but for Siraya Tech Blu I use 60s/11s
You need the dual tones! It would have been so easy to do a dual tone stator. Oh well
Yes! Resin print! Retest!
i would love to see a complete pc case fan resin printed using that motor and see what that does for cooling possibly for both watercooling and non
You should try elegoo’s water washable resin
Anycubic Photon is also an EXCELLENT resin printer.
Make a laminar flow smoke machine for your tests. You can probably get away with like a 40mm fan blowing into a atomizer for a vape and 120mm fan for general airflow all in a box that uses a stack of straws to remove turbulence from the airflow. You may need to use some open cell foam in front of the straws to further straighten the airflow. Or all resin print it. But it would be a cool gadget to make for various testing
if you are looking for a different power supply then look for the "DPM8624" 60V + 24A is enough power and it has a wireless controller with a 2.4-inch LCD display, so you can control everything without being nearby
For static tests like this an old computer powers supply will leave your bench power supply in the dust for current output at 12v. You can get breakout boards pretty cheap online if you want the supply to be unmodded. It won't be a true variable voltage but for 12v work they are heard to beat.
More yeeting to me means more beer...but more voltage works too.
Have you thought about printing an insane water pump fan/impellar and RC motor, with high pressure lines for liquid cooling 😎
3D printed resin cleaning Tip: Put print into zip lock bag with alcohol, then put bag into ultrasonic cleaner with water. Safer and less waste.
Was the "back to the show" after the sponsor clip a donut reference?
I wondered the same thing...
Yes Tim the Toolman, get the bigger power supply!!!
I'm genuinely amazed that you only have 78k subscribers mate, this is such a great channel!
Weird idea, but how about adding a blow-off valve to a system? I'm drunk
Resin printers do in fact over pressure if the crown sheet is over the resin level. (Kidding)
I heard if you fill the ultrasonic cleaner with water, then put the IPA in a plastic (zip-lock) bag with the print, you don't have to worry about the "explosion" part lol. I am sure it makes cleanup a lot easier as well.
I still want to see an OS 46AX powered computer fan! Also, re-test this siren on a power supply that can feed the voracious appetite of a redbottom; as so many other commenters have said your PSU went into constant current mode when it hit 5 amps and you never got anywhere close to full power out of that motor.
You should make one that has gear reduction and a shaft on the back to power it with an electric dril. Now thats something i could use. And might be cool for many job sites
The fan part of a siren is not a "turbine." Turbines are driven. In siren terms, that part that I think you're calling a "turbine" is actually the chopper.
All americans ever: "Loud is good. Loud is freedom. Loud is power. And Loud.. loud is America"
With tears in eyes "god bless murica"
Loud n' proud, baby
For a really proper air raid siren, you want two sets of relatively prime choppers--one with six and one with seven vanes, for example--on one shaft. Makes a truly awful racket.
Resin printer will do wonders for the surface finish on fan blades, reduce drag and improve performance. Can also add some more subtle aerodynamic features. Just the build plate size might be an issue?
Have you tried running the siren without that front duct? With the duct your impeller input and output are coaxial so you will be getting interference effects which may be constructive or destructive. Most commercial sirens don't have this duct, with the siren output coming straight out of the stator in a radial direction.
A yellow ad bar, very nice
"clock up the voltage" - my ears
yes finally a resin printer, you can do an episode when you compare the same fans printed on fdm and sla
Make more! All corners of the house and just blast it at say 3am. 😂 Not too long to where people know where it came from but just long enough.
Gotta keep it at the right sound also to scare the 💩 out of people thinking there's a tornado coming
You should definitely restart the fan challenge using the resin printer. I imagine the higher accuracy would lead to less air resistance and turbulence. Maybe that #1 fan will finally beat the Noctua.
My bearded dragon had no idea what that noise was and was clealry confused and im wearing headphones... nice
You’re power limited on your PSU. You can see it derating at the end, I imagine your PSU is rated for a max of 40ish watts
Would enjoy seeing quadcopter props printed and stress tested, maybe on a 3d printed quad frame.
That would make a good server fan, as we all know the louder it is, the better! /s
I would like to know the settings you used for your print. I have one of these printers and i think im doing something wrong.
Loads of experience with commercial and custom sla printers here.
My biggest tip is careful how you position your parts in respect to flat surfaces. Try and not have them printing completely flat onto the print bed. More likely to stick that way and you'll get better results with a slight angle as well.
If you get into it you should try experimenting with some homemade resins!
9:00 the emerald green is beautiful, it looks like glass green. (no not green glass)
Print some earplugs for Yoda. 🙃 Nice work! 👍
If you had a 3d scan of your ears, and a resin printer with the right resin, you could 3d resin print ear plugs, no problem. That's how companies like ultimate ears do it, more or less.
How about half the number of cavities to reduce the pitch?
Becoming the 3D Printing Nerd
Power supplies are awesome. You might find that a car battery is a better choice for high amp draw.
Maybe double or triple your turbine in height and increase your stator accordingly to gain surface area and air flow. More spl comes from surface area moving air. You could vary the number of chopper veins to add secondary and tertiary tones to make it more effective. The larger versions vary the chopper veins to produce two times that create a louder overtone for effectiveness.