Making your own bubble machine is a really easy and fun project. It can be made from almost anything, glued and screwed together with an end result which will keep kids (and adults!) amused for hours.

With basic electronics of just a fan and a motor, a bubble machine is also a really easy first electronics project. This one I threw together with spare minutes here and there across the period of a week. The longest part was waiting for the centrifugal fan to arrive from Amazon, the best part was making a lot of mess in the Instructables office before realising that the shower would be a better place to blow bubbles while testing.

My bubble machine was made to keep my friends' toddler amused. She loves bubbles but is at an age where blowing them herself is rather hit or miss (not to mention messy). She spent a VERY happy 15 minutes running through and around them in the street outside, afterwhich the adults stepped in to play with heating the bubbles to see if they'd go higher, or experimenting with different bubble mixes to see if any where noticably better.

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Step 1: Tools & Materials

These are the tools and materials that I used for my bubble machine. Yours will differ greatly depending on what you have available. This is a great project to do with scraps, and odds and ends all hacked together. It doesn't have to look amazing to be a lot of fun, it just has to work.

To make it easier for others to reproduce this, I've done away with my normal format of exactly what to use and instead broken it down into the five main components the machine's made from. The 5 steps after this talk about what alternatives you could use and what each has to do to make a great bubble machine. I then give details on how to assemble it if you did it exactly like mine.

Trough: To hold the bubble solution. It needs to be waterproof and not too shallow, that's it.

Bubble Ring: A ring of holes that will spin slowly through the trough picking up the bubble solution. As it lifts out of the trough the holes pass before a blower to form the bubbles.

Motion: A slowly moving motor to spin the bubble ring. A continuous servo is perfect for this.

Blower: Something with a bit of puff. Will force the bubble liquid out of the holes in the ring, forming BUBBLES! I used this 12V centrifugal server fan from Amazon.

Power: A power source or two for the blower and spinner.

You'll also need nuts, bolts, hot glue or superglue to hold everything together.

The files I used for laser cutting are included in this step.
csherry says: May 28, 2013. 11:25 PM
could u plz list your sources for the materials you used..... i would love to make something like this with my nephew. thanks
agis68 says: Mar 24, 2013. 12:03 PM
pretty cool...amazing fun. thanks for sharing
rlarios says: Feb 26, 2013. 9:38 PM
Hi Jayefuu, nice idea. How did you come up with the idea?

By the way, thanks for the following.
Jayefuu (author) in reply to rlariosFeb 27, 2013. 3:34 AM
If I remember rightly, when I stayed in San Francisco, Christy and Eric's daughter loved bubbles and kept asking us to blow them for her. So I made a machine to do it for us rather than go out and buy a machine.
rimar2000 says: May 30, 2012. 6:20 AM
That beautiful girl/child in step 8, is yours?
canida in reply to rimar2000May 31, 2012. 11:55 AM
That one's mine. Thank you! :)
Jayefuu (author) in reply to rimar2000May 31, 2012. 11:48 AM
Afraid not! That's Eric and Christy's kid, Corvidae.

J
msaleiro says: May 29, 2012. 11:02 AM
Really cool project! :) I've been slowly helping my girlfriend doing something similar but it's not finished yet. Yours looks really clean and simple! Congrats!
AntzyP says: Apr 13, 2012. 11:48 PM
I'm making one but I don't have a laser cutter. I'm cutting the circles out of about 1mm thick sheet of plastic. The problem is I'm using a cutter and even the most careful cutting sometimes leaves miniscule sharp points. This doesnt let the bubble form.
Anyone got any ideas how to cut out perfect circles sans a laser cutter?
Samuel Bernier says: Apr 8, 2012. 9:22 PM
This little girl is more present on internet than Lady Gaga!
alitia says: Apr 8, 2012. 7:58 AM
Has anyone seen the "bubble mobile" at Madison, Wisconsin's Willy St Fair?

http://www.sparkpeople.com/mypage_public_journal_individual.asp?blog_id=3673067

The guy made it just for this one day every year, and does it just to make people happy.
We love the bubble guy!
swodzins says: Apr 2, 2012. 10:27 AM
What kind of laser cutter do you own?
Jayefuu (author) in reply to swodzinsApr 3, 2012. 8:26 PM
This particular project was cut on an Epilog 75W laser cutter.
sourabh882008 says: Mar 31, 2012. 10:27 AM
Very nice :-D
Loved it :-D
&
Thanks :-D
BytePilot says: Mar 25, 2012. 11:48 AM
I've made one passing similar using something out of my junk box.
A centrifugal fan driven bya motor with a back spindle to which a gearbox was attached.
Laser cut disk much the same as yours, but I extended the crinkle cut edges with engraved slots to hold even more bubble mix.

At 6volts It eats through 3.4 of a pot of bubble mixture in 10 minutes....
Nom nom nom...
IMAG0168.jpgIMAG0175.jpg
Jayefuu (author) in reply to BytePilotMar 25, 2012. 12:00 PM
Nice! How long did that take you, and when did you make it?
BytePilot in reply to JayefuuMar 25, 2012. 12:31 PM
Oops, sorry, missed a bit. Made it about 2pm today.
BytePilot in reply to JayefuuMar 25, 2012. 12:30 PM
Thank you. It works rather well...
Took about (thinx) an hour to prep DXF files, half an hour cutting and assembling, and another hour for glue to set.

Alas it's back in the workshop right at this moment, getting another round of epoxy resin. Wee Lad was so exited he dragged it off the table and cracked the box off the mounting.

I've attached the DXF files here, they may not be a lot of use to anyone else alas, since they were made to fit the junk fan I had available.

ilpug says: Mar 22, 2012. 2:34 PM
I like it! I really need to get some time on a laser cutter... I like how this is a finished design build. Most things like this on the site are a bit cobbled together, but this is fully realized! That said, it could also be easily reverse engineered with some pretty basic materials.
Jayefuu (author) in reply to ilpugMar 22, 2012. 2:36 PM
Thanks. If I made another I'd design in a mount for the fan so that I didn't need any hot glue at all. It'd make an ideal kit then.
ilpug in reply to JayefuuMar 22, 2012. 3:46 PM
Yeah, that could be done. If I ever make one of these it will probably be a very rigged one.
dreamberry says: Mar 22, 2012. 3:16 PM
Hero status for you, sir.
hertzgamma says: Mar 22, 2012. 2:21 PM
Amazing!
Lindie says: Mar 22, 2012. 9:31 AM
Love it! Please tell Randy to make me one! Thanks. :-)
Jayefuu (author) in reply to LindieMar 22, 2012. 10:01 AM
Ok mom!
Lindie in reply to JayefuuMar 22, 2012. 11:03 AM
Thanks!
bllwdcrvr says: Mar 22, 2012. 9:40 AM
I have seen something similar at an old engine show..wouldnt that be neat to have a bubble machine powered from a sterling engine???..not a lot of torque but steady and slow...
ljdarten says: Mar 22, 2012. 9:13 AM
Looks great. Was thinking of making my own soon. We've bought a couple in the past for our daughter and it really seems like the designers of the store bought ones just don't know how physics work. they always stop working.
ljdarten in reply to ljdartenMar 22, 2012. 9:15 AM
by stop working i mean the bubbles always end up getting stuck in such a way you have to clean off the excess solution and start over to make it work again. then repeat.
canucksgirl says: Mar 20, 2012. 11:45 AM
Great job! I see you had fun with the "head of product testing" or was it the other way around... ;)
Jayefuu (author) in reply to canucksgirlMar 21, 2012. 3:25 PM
Yuh, she liked it :D
bajablue in reply to canucksgirlMar 20, 2012. 11:11 PM
+1 ;-D
stephenniall says: Mar 20, 2012. 11:30 AM
Very Cool !
alaskanbychoice says: Mar 20, 2012. 8:37 AM
Very nice.
rimar2000 says: Mar 20, 2012. 4:57 AM
Nice!
Jayefuu (author) in reply to rimar2000Mar 20, 2012. 8:01 AM
Thanks O!
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