3D Printed Pop Pop Boat

by YosemiteSam, published

3D Printed Pop Pop Boat by YosemiteSam Jul 6, 2015

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Thing Info

43618Views 5631Downloads Found in Engineering
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Video presentation: https://youtu.be/iqzEAgVLHtQ

Short GIF animation: http://shrani.si/f/31/10X/vUkJr1K/pop.gif

3DPrint.com article: http://3dprint.com/79580/3d-printed-pop-pop-boat/

The boat is powered by steam, using a candle to boil water in a “boiler.” The water boils, thus expanding into steam, and this expanded steam pushes water that is in the exhaust (plastic straws), causing the boat to move about the water. Then when the water cools down, it creates a vacuum which sucks more water into the exhaust, thus creating a cycle that repeats itself. While this process is occurring there is a very clear popping sound created, thus the name “Pop Pop Boat” is quite fitting.

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43618Views 5631Downloads Found in Engineering
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Hahaha!! i need to try this experience, It's really fun. i like it!

Very good project.Thanks

Of course you need to prime the engine with water, otherwise there is nothing that can boil and therefore there is nothing that goes out in the strawers..

Anyone get this to work with PLA? I tried and had no movement in a couple of minutes and the engine bottom kind of melted.

Do you need to prime the engine by getting water in it first?

May 10, 2016 - Modified May 10, 2016

Are there any instructions on how to put this together? The instructions are kind of hard to follow

This is awesome. Thanks for sharing!

There is something really adorable about the pfftpfftpfftpff sound it makes =)

Wow! I love this design!

Very nice work.
Definitely something to do with the kids.
Maybe it would be a good idea to add adjustable rudder so you can make it go in circles by itself.

Nice! Would this work with PLA? I really want to print it but I'm worried the heat will melt the lower temp PLA

Thin aluminium from a (bbq) tray works great. Glued it with a slight dent and it can only be in two positions, dome or bowl. I think this is what you need to make it work


3D Printed Pop Pop Boat
by dolpin

I went to a party supply store, and bought 5mm straws. It works great, and is fun to watch!

My bench straws are a mm thicker than the holes which causes nasty bunching. Maybe a version with 6mm holes?

knetic - in reply to cymon

I had the same problem. I ended up widening the holes, remixed under http://www.thingiverse.com/thing:1571508

3D Printed Pop Pop Boat (6mm straw holes)
by knetic

I should test the engine with 6mm straws before I upload it, but I can upload STEP file which you can modify yourself.

I would appreciate if you could load the STEP files up so I can mod the engine. Thanks

I just imported the STL into Tinkercad, threw a few 6mm cylinders on the workplane, and lined them up with the original holes and used them to cut larger holes. Downloaded the new version and printed perfectly. Took 5 minutes.

Had the same idea but failed miserably. I know how hard it is to mix a flame and 3D printed material. You're a genius

This is easily in my top 5 coolest things I've seen come off of a print bed. I can't believe it didn't win.

Thanks a lot for sharing, it was fun to make, I have a suggestion for a slight modification though. Rather than the 4 circular tabs being flat on the top, if there could be some more material added to make a slight slope up to the top of the engine, it might make printing a bit easy on some printers, as the overhang would be less severe.

Jul 25, 2015 - Modified Jul 25, 2015

Nice Vid, Sam! ;-) I wanna like this twice, great model. Too bad you didn't win.

HI HI, I printed one and lighting the candle for over 15 mins,,,but it do not move ~_~ Could you help? Thanks.

Jul 21, 2015 - Modified Jul 21, 2015
YosemiteSam - in reply to Qubea

It is important to have an appropriate tea candle with a bigger flame.

Bad vs. Good one: http://shrani.si/f/22/gd/2NC3Yuqs/p7212769-medium.jpg

Oh, I think I got a bad candle~~~ I will try again! Thx

could I use aluminium from a soda can instead of foil?

Aluminium foil from soda can is to thick.

I just printed it. The boat floats perfectly and I used Nickles to balance it out. I need to find better straws, but it worked great! THANK YOU!

Glad to hear that it works. What problem do you have with straws?

Mine are too big and too flimsy :(

Tanks for this post. I print-it!! But can you give more information about metal sheet and the mastic?

Buy aluminium foil in a local supermarket, but don't choose the cheapest/thinnest one.

You can find high temperature silicone adhesive in almost any store with building supplies.

I really like this!! It's great! My son will love it

This is great! I've wanted to make one of these for a while and I had assumed that printed plastic wouldn't be up to the job. Thanks!

Thanks so much for posting this. I somehow missed these pop-pop boats as a child. But thanks to my grandson, I can now act like a child again and make a fleet of these :)

Excellent design! :)

So nice ! Great work ! It only misses a servo mount for direction and a camera/arduino mount ;)

very thin walls. It was breaking twice. Better make thicker.

Jul 9, 2015 - Modified Jul 9, 2015
YosemiteSam - in reply to vsigal

Walls are 1.7 mm thick. Which filament did you use? I made it from Z-ABS which very durable and flexible material.

ILove it! This is a great 3d item. I'm waiting on my printer and will try this as one of my first items - for the grand kids of course (& maybe one for me).
Thanks heaps. Ian

Thanks, sir. :)

What printer did you use?

Zortrax M200.

I might have missed it in the video, but do you prime the tubes with water first?

Yes, the engine must be filled with water. I forgot to mention that in the video.

Thanks a lot Sam... Now I have to make one of these.. lol Great Job!!!

Jul 6, 2015 - Modified Jul 6, 2015
YosemiteSam - in reply to BbrnKyle

Thank you, sir. ;)