Part 21 Build a Putt PuttPop Pop Steam Boat s18 powered test

[oo7101]

can standardd white glue or hot glue work?

[watt097]

when i did it the glue i used just melted :(

[KlassikoGratido]

Mine worked.. I made a wider one and I think it made it more speedy hehe. Please check out mine in my channel.

[sciencetoymaker]

@KlassikoGratido Good work! I saw it on your channel and you did a great job..

Slater

[888000777666]

i love your tuts mine worked

[dudabraga]

HAHA it works! it works! THKS A lot!

[techwizzy]

Woooot!!!!! Mine works!!!!!

[tomalotube]

this is pretty awesome! mine gets hot, but not hot enough to melty anything... I fixed that my using a smaller candle. My other one had an oversiezed flame.

[erikatvdriver]

AMAZING mine worked and im happy with your great, amazing tutorials...thank you :D:D:D:D:D:d great project for when your bored...hopefully if i can ill make a video on it to show you

[sciencetoymaker]

@erikatvdriver Thanks for the feedback. Yes, feel free to make a video as a "video response" so we can see it.

Slater

[manoffire11]

Awesome. Great instructions, my engine looks same as yours. It worked! I have not seen any 0,5 gallon juice or milk cartons here, so let's see if I come up with something else!

[sciencetoymaker]

@manoffire11 I liked your video response. Let us know what other ideas you come up with.

Slater

[helipro555]

thanks!!!!!!! i made this its mad

[tsenterd]

question: if you shake the enginbe too much, isnt it possible that the water would still get inside the aluminum, and that would take a long time to light up as you suggested right? or is it completely impossible for the water to get into the engine because of the air bubble...

[sciencetoymaker]

@tsenterd I don't think you can shake too much. The whole point is to splash the inside of the engine so tiny water droplets will wet the inside despite the air bubble.

Slater

[galenator123]

i recomend only spliting the candle in half or thirds, gives it longer run time

[sciencetoymaker]

@galenator123 Yes, as long as you can fit it underneath.

Slater

[jeankris972]

Men that was great fun doing it with my 4yrs old son, my 1st ever engine work straight away ( i was probably more exiting than him). I have a question is there is something as bad quality epoxy or too much heat. To help you understand i bought the epoxy glue in a cheap store (bad quality?) and i power test the engine with a lighter (too much heat?).

[sciencetoymaker]

@jeankris972 Well, I don't know about epoxy quality, but a lighter could be too much heat, especially if the engine is dry (stops popping). Always remove the heat if the engine stops popping. Butane is a very hot fuel. When the epoxy gets too hot, it doesn't seem to stick well. You might have to go back and seal leaks again. If the epoxy peels off easily, remove that part and apply epoxy again. Scuffing up the aluminum with sandpaper might help it stick better.

Slater

[amanmahirvikash]

this actually works !!!!!!!!

i tried it!=)

[KonijnKlok]

I have a question: If you make your engine using a hollow copper tube folded into a coil, will it still produce the signature popping sound? Because from what I understand (correct me if I'm wrong), the sound seems to be produced by the diaphragm engine folding inwards when the steam gets blown out and folding outwards when water gets sucked in. (Like a lung)

[sciencetoymaker]

That is correct, the diaphragm makes the sound. Copper tube ones might make a tiny sound but it's very subtle. There are lots of people on the Yahoo pop pop group who like the tube kind, though.

Slater

[sciencetoymaker]

@KonijnKlok congrats!

[ilovesteaksnscience]

Thanks for the great vid...=)

However, both my first engine and my second engine take about 45sec to 60sec to start to pop.I use birthday candles that have a nice big flame.I live in a hot country too...might that effect the engine by any chance?

( I did re-prime it but still did'nt work )

[sciencetoymaker]

Living in a hot country does not matter--I first encountered pop pop boats in Bangladesh! I suspect one or more leaks. Did you see part 22 about troubleshooting?

Slater

[ilovesteaksnscience]

No leaks...No kinks...but the engine does start popping steadily after waiting for 45sec to 60 sec.

About the part of small drops of water flashing quickly into steam, my engine seems to be water logged.Could that be the problem?

(Completely tested with any test from the troubleshooting section)

[sciencetoymaker]

So it works, but it just takes a long time to work? For reasons I don't understand, sometimes it's not enough to re-prime. You should vigorously shake out the old water, then re-prime. One other possibility: try moving the flame more forward.

Slater

[ilovesteaksnscience]

Thanks!due to your expert advice my two engines are working fine now.

[simoniaquoino]

thanks,it work realy fine,i will do a video

[azhar1295]

my straws melts

[Darwinpasta]

re- the engine working better the second time

I'd imagine that this has something to do with the heating/cooling involved. It may deform the metal a bit so that it frees the metal to move more easily, getting rid of any stress formed by slight kinks/bends. Just my two cents, love the project, I'm definately trying this. :-)

[zackatack187]

sic