Echo | 3 tone whistle

by LetsMakeThings, published

Echo | 3 tone whistle by LetsMakeThings Dec 11, 2015

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Fusion 360

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For the loudest results, print the whistle on its side.
The Echo whistle started as an idea to create the loudest whistle for a 3D Printer and create a more compact survival whistle. This whistle is designed for the person who wants a easy, compact and loud whistle for any situation, ranging from survival to referees.

Testing this print i used 3 different filament types, Wood, PLA, ABS all working perfectly. ABS being the strongest survived any tests i ran it though, throwing it down on the ground, running it over and water. With wood filament it was a bit more brittle but still survived all the tests besides being ran over. The last of them being PLA which survived all tests with a minor amount of damage.

Below in the downloads are 2 different sizes for you to chose from, one with a lower tone and a higher tone.

For the loudest effect, i suggest you cover your ears as i did in the video and blow as hard as you can. Even though the whistle will work with less force than that.

I hope you enjoy this print as much as i did!

Interested in any of my other projects?
Check out my website at danhues.com.

Print Settings


FlashForge Dreamer


Doesn't Matter




Any layer height


15% - 25% you can print higher it may make it feel sturdier but with my experience it doesnt make that much of a difference


You can print this without a raft fine if you have a heated bed. If your printer does not have a heated bed a raft is recommended

Video Example

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Hi !
what are the differences, apart from the size, between :

  • Full-Size-129db-Whistle-No-Wings-V2
  • Full-Size-Whistle-V3
  • Micro-Size-129db-whistle-v2
  • Micro-Size-Whistle-V3


First print of Full-Size-Whistle-V3.stl using LulzBot Mini, PLA, 20% infill, standard quality (Cura LulzBot edition) was no good. Print had several holes, each outer whistle, side opposite flat side.

If I wanted to order about 100 of these can you produce them? what would the cost be? are these made out of recycled plastic? you can contact me 559-475-3932 or [email protected]

I have actually made a few of these and sold some. I made one and it was so damn loud it was like a screech from the pits of hell. it was like my own ears were bleeding let alone my friends that were next to me. I'm not so sure why people are having problems printing this. the v3 model of the full sized is the best the small one needs work. just print it flat rather than on its side. I've made about 15 of these so far and they all work great.

Please check the model because when sliced there're holes in the middle part.
I used Cura but I think it is independant by the slicer software. The wall are too small in those sections.

Comments deleted.

Strange sounds while printing ... yeah because ... it's a whistle ... ;-D

Look what I just found. I hope you're getting Royalties.

Same issue as some other users mentioned, had to scale 150% to print without holes.
Simplify3D will do it with single extrusion walls turned on, but that always leaves some seem gaps.

I just printed this, and overall it turned out well. My only complaint is that you can’t blow it softly. So you either get a really loud sound, or just an airy sound. Great survival whistle, but not good for every day use

Despues de tres intentos, el tercero ha funcionado, hay que tener en cuenta la resolucion y el relleno, ademas el que ha salido bien lo he realizado de plano.

For those of you having trouble getting this to work: The biggest problems with printing whistles is them being airtight. A lot of printer/temps won't create a watertight seal much less airtight. You can try coating it with some clear paint to see if that helps. I have to step up my temps a little sometimes to make sure the layers are really solid.

Amazing, but the middle one is very loud and the two side ones aren't as loud.

Printed 4 in various settings and none work. Well two work but it's very faint. Oh well.

I printed it with 1.25x scale and it's even louder!

Comments deleted.

Well man, It can not be printed with PRUSA I3 MK2, material: PLA, layer heights: 0.05mm (better), 0.01mm (much worse), noolze: 0.4mm. It has been printed on it's side.If you are interested in picture and details, let me know. I own smaller noozle and I can try to print it, but I think retraction has to be adjusted. So, let me know.

I also have an Mk2 and it printe fine here a while ago with PETG. Have a look at your settings.

do you have the .STP of the model

thank you

Printed on its side, Turned out awesome but it doesn't work! too bad it's a nice looking whistle... into the scrap bin it goes.

have tried to print 2 different whistles but either of them work (Tevo Tarantula)

It's apparently better

Since only the center worked, I took a razor and shaved off both sides and shortened the thp to where it's solid. 1 tone but is damn loud. Looks ugly though since I cut it up.

Printed it on it's side but the first and third whistles barely make any sound. It all comes from the center.

I'm new to 3D printing...so I suspect I may have missed something...but I tried 3 times and have been unable to get it working for me.
Pity...it looks nice :)

Have you tried printing it on its side?

So, I've been having some trouble with it. I did try some debugging and I found that some of the walls are so thin that my slicer (Simplify3d) simply refuses to create them. In particular the slanted/curved surfaces on the top seem to be causing these problems. Would it be possible to make a version that has slightly thinker walls on the top and bottom?

Note I cross checked this by doubling the size of the whistle and the holes disappear. So the problem does seem related to wall thickness.

Doesn't work - should have checked the comments first...

Did you follow the instructions in the description when printing it.

I printed flat on it's back - does that make a difference?

Works fine. Despite having a little hole on the mouth piece, it annoys other people quite a bit ;-)

mine didnt work but i used supports...my bad.. i did wonder maybe printing on side would be better?

Supports clog up the insides

Def doesn't work. Major bummer

What is the difference between winged and wingless?

No luck here either. Took the small version, sliced in CURA and then printed in PLA on a i3.

Doesn't work. I mean it kinda worked but you couldn't hear it across the room or anything.

Printed it flat, on it's side, fast, slow. Doesn't work !

Printed at 60mm/s and there was no sound. I examined it and realised there was a small hole that shouldn't be there letting air out on the top layer of the print. I tryed printing again this time at 10mm/s and it did take a lot longer but it is now extremely loud and it hurts my ears when I blow on it really hard.

Sorry , but does not work, printed the two versions.

Have you printed it on its side or on the bottom? Try printing it on its side. I'm setting up a redesign to work on all angles

Пиздец как круто!!! GOOD!


not designed for 3d printing before to try to print this :)

I'm trying to find something like this to print for cub scouts (crazy to give them a whistle I know) but I would like to put their names on them if possible.

Had a bit of an experiment and found printing on it's side worked a lot better than 'flat' although this makes the keyring part a bit weak. Makes a really nice pitch and loud sound. I was using Colorfabb Woodfil at .3mm layer height, so I'd say this design is very tolerant. #NorwichHackspace

When I printed it (on standard setting, printed on a FlashForge Finder) there was a hole in the bottom so it didn't work well. Then I put a piece of tape over the hole and it worked fine. It was realy loud though.

Hi, can you make a version with a thiker ring (keyring)?
This is my favourite whistle but this is the fourth time that I broke that ring :)

Comments deleted.

I can't make it work! :-/
I printed flat at first, then read some comments and printed it on it's side. It still doesn't work.
PLA, Res 0.3, 20% Infill.

I printed the small one btw.

try printing it at 0.2

OOMMMGGGG it broke my ears the first time I tried it!! Printing tips : no support, and high retraction for bowden


Not sure why but my print doesn't seem to work. Any particular settings you used? or maybe my printer isn't calibrated, how long is it supposed to be?

The best way i have found to print it is on its side

Printed this on my Tinyboy, and it doesn't seem that loud (relatively), and actually seem to get somewhat better performance when I block the top holes. Any suggestions? I am a trumpet player, and at full force, I can only get 109dB at 6". Thanks!

Interesting, how did you print it? flat or on its side and with what layer height?

So good, extremely loud as well as a really fast print!

Very loud and fast to print. Thank you!

Hmmm... Today is Dec 11 and this Thing was posted 2 days ago. Contest deadline was Dec. 6. Hmmm...

Granted, the Contest Rules stated very explicitly that the Makerbot folks were under no obligation to be "fair."

But I hadn't expected to be glad I didn't bother before they even announced the winner.


Comments deleted.