Instructables

Phono Horn. Free Sound Dock for your Smart Phone to Download and Make.

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Picture of Phono Horn. Free Sound Dock for your Smart Phone to Download and Make.

Phono-Horn. A paper sound dock for your smart phone! Play your phone through the Phono Horn and the sound output is richer and clearer with improved bass response. There are two base templates included, one for iPhone 4S and one for Samsung Galaxy S2 and S4. It should be easy to adapt the kit to suit most phones. It is simply a matter of ensuring that the loudspeaker on the phone is positioned over the horn inlet hole.
This model was originally published on robives.com a website full of paper animations to download and make. 

NEW: Base for Galaxy S3, free download.

You can follow Rob Ives on twitter @robives  and facebook at robivescom
 
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Step 1: Print out the parts

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The model works well printed onto coloured card. (230 micron / 67lb) I used a selection of colours from these cards I bought from a local stationer.
Print out the horn parts sheet (page two) twice on complementary colours. Print out page three on another colour and then either page four or five depending on whether you are making the iPhone or Galaxy version. The final page is the project label and should be printed onto white paper.
Score along all the dotted and dashed lines before carefully cutting out the parts.

Step 2: Making the Horn

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Fold round and glue down the wide ends of the horn pieces to make triangular tubes. These keep the end of the horn rigid.

Step 3:

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Glue together two of the horn pieces with tabs on the end. Line up the parts as accurately as possible.

Step 4:

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Glue the next two pieces into place this time using two pieces without tabs.

Step 5:

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Alternate two with tabs the two without for the remaining horn pieces.

Step 6:

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Roll round and glue the end into a circle.

Step 7:

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Work your way along the horn gluing one row at a time...

Step 8:

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...right up to the end of the horn.

Step 9:

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Glue together the four sided end pipe.

Step 10:

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Glue the end pipe to the horn.

Step 11: Making a base for iPhone 4S

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Assemble the two main base pieces as shown.

Step 12:

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Glue together the two cross pieces.

Step 13:

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Fold round and glue up the triangular shaped lower front.
jorishuizinga made it!2 months ago

just finished the horn, now making the dock!

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robives (author)  jorishuizinga2 months ago
Excellent! I hope the base goes well as well!
DUO00377 months ago
awesome!
Vadinhotpj7 months ago
very nice!
legoman7868 months ago
Just built this using only printer paper and scotch tape for work. I will be building another using 67lb paper! Rock on, dude!
patlink729 months ago
Made one today cool design -but my Samsung S3 isn't any louder with it
robives (author)  patlink729 months ago
I've made a new base for the S3 - not tested as I don't have an S3 myself but I have high hopes for it. It is a free download here. If you do make it I'd be grateful if you could tell me if it works!
http://www.robives.com/blog/s3base
yapoyo robives8 months ago
I made the S3 base and it works great!
robives (author)  patlink729 months ago
@yapoyo says the S3 works if you put it on upside down. If I can get the accurate dimensions for the speaker placement and size of the phone I'll have a go at making as specific S3 stand. The volume isn't much louder on mine but the bass response is much better and the sound is richer.
mbraglia8 months ago
is it possible for the iPhone 5 to fit in it?
robives (author)  mbraglia8 months ago
It should be fairly easy to adapt for most phones. All you need is for the speaker to be lined up with an inlet hole. I'm afraid I don't have the dimensions for an iphone 5 to check
yapoyo robives8 months ago
The iPhone 5 is just as wide as the iPhone 4s, so the speaker should be in the same place. You can really use the iPhone 4S dock for any iPhone ever made, since the speakers are pretty much in the same place.
puppetmaker779 months ago
I just finished mine! It turned out pretty well, if I do say so myself. I was building mine for my iPod Touch 4gen, so I had to move the hole over to the other side. The iPod's edge with the speaker was on a bit of a slant, so it doesn't quite capture the sound with a flawless seal like it does with an iPhone, but it still works quite well.

You failed to mention in the instructions that once finished, the Phono Horn isn't balanced and doesn't stay standing unless it has a device ON it, due to the horn part, but oh well. Just a minor gripe. Overall, quite nice. BRAVO.
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robives (author)  puppetmaker779 months ago
Nice work PuppetMaker!
I tried adding extra pieces to the base to make it balance but it looked better without. When I'm not using mine I store the horn inverted over the base.
12203madman9 months ago
im going to modify it to fit my nexus 7
Toshio19019 months ago
Thanks
patlink729 months ago
Thanks downloaded will try it out
Saitu9 months ago
BRILLIANT!!! making this as soon as I get my new nexus 4 in about 2 weeks. Voted!
FrodoandSam9 months ago
Wow! Just made this. It worked EVEN THOUGH I'll admit to using regular printer paper and construction paper, invisible tape, hot glue, and duct tape! Amazing and very impressive, I'll bet if I did it correctly it'd work even better. I'd really like to see someone try to make this and some other projects on your website out of cardboard. Really nice job, keep up the cool projects!
robives (author)  FrodoandSam9 months ago
Thanks :-) Sounds like you used loads of different materials!
GeekCrafter9 months ago
I love this!! I'm a fan of origami and papercraft, and I'm going to try this with my kids. Thanks for sharing!
robives (author)  GeekCrafter9 months ago
Have fun!
phoenyxashe9 months ago
Very nice! I've got a Galaxy Tablet that I used to listen to audiobooks on frequently, and while the speakers are okay, this could improve on them considerably. I've downloaded the PDF, and think I can make it work...
robives (author)  phoenyxashe9 months ago
Post a picture if you create a mode for your tab!
alzie9 months ago
Cool design / project!
Its amazing that after 100yrs we ve come full circle
to using acoustic horns to reinforce small transducers again!
robives (author)  alzie9 months ago
Marvelous isn't it!
wthit569 months ago
Looks awesome! Would love a video to show the sound quality and such.
robives (author)  wthit569 months ago
I'll give it a go
McMeel269 months ago
Super cool! have you done any tests to see the difference in volume?
robives (author)  McMeel269 months ago
I'm going to try making a video in the morning when everyone is out and the house is quiet.
foobear9 months ago
Are you related to Cabaret Mechanical Theater in some way?
robives (author)  foobear9 months ago
On;y in the sense that I know some of the people involved and am a fan of their work.
SteveDonie9 months ago
Rob is a paper-crafting master. Definitely check out his other works at robives.com

I've built a couple of his animated kits and they are great, fun projects to do with kids. (or without kids, if you don't have any!) I especially like his 'logic goats' and the Mexican Peck.
robives (author)  SteveDonie9 months ago
Thanks for the kind words Steve
fish_dude9 months ago
very good ible i built one and it works great
robives (author)  fish_dude9 months ago
Thanks - glad you liked it!
yapoyo9 months ago
Wow. So I have the Galaxy S3 which has the speaker up at the top, so would I just move the horn holder further up?
robives (author)  yapoyo9 months ago
Should be possible. Or put the phone upside down on the stand.
fish_dude robives9 months ago
upside down works for the gs3
robives (author)  fish_dude9 months ago
Excellent! Thanks for letting me know.
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