Maker Faire Detroit 2012: Water Rockets! (@chrissalzman @dgoings @nostarch @makerfaire)

I was fortunate enough to have two excellent co-conspirators at Maker Faire Detroit this past weekend: Dylan Goings (who you’ll see in many of the pictures I’ll be posting over the next few days) and Chris Salzman (who you won’t see, since he took the pictures–although you can see him here rocking the No Starch Press temporary tattoo). A chap could not ask for two better blokes with whom to make Maker Faire.
This week I’ll post pics and anecdotes about our weekend, but in short: It was really goddamn rad! We made over 100 water rockets with kids, we spread the Gospel of Cheap Homebrew Instruments, we climbed up a big geodesic dome, we ate over-priced hotdogs, we rode crazy vehicles, we stayed hydrated, and no one got sunburned, lacerated, concussed, or contused on our watch. It was basically the 100% perfect weekend.
But, for right now, let’s talk water rockets. (All these pics are courtesy of Chris. He rules!)
Our water rockets are as simple as possible: cork, tire stem, bike pump, bottle, water, *zooooom!* (learn to build one FOR FREE!)
Here’s a little animation of a launch (that’s Dylan helping with the trajectory):

Here’s another go at it:
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
And here’s Dylan helping a kid through his first build: Drill, Ream, Insert Stem, Trim Cork, Load Bottle, Pump ‘er Up, Blast Off, *Joy!*
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
Yes! Photo: Maker Fair 2012 &emdash;
TUNE IN FOR MORE PICS TOMORROW!

A Few Quick Pics from Maker Faire Detroit Today

We had an excellent day at Maker Faire Detroit! We even got a tent this year! And remembered to take food and water breaks!
Chris Salzman, Dylan Goings, and I made nearly 100 water rockets with kids (Chris and Dylan did the yeomen’s share–they are like a two-man water-rocket education assembly line!), and we talked ourselves hoarse about simple synths, easy amps, $10 electric guitars, DIY games, and more–despite the terrible roar of this monstrous air-horn organ just a few dozen feet away.
Anyway, here are a fistful of pics from today (incidentally, I only shot the last one myself; that’s Chris rocking the No Starch Press temporary tattoo. Check out those guns!) See you makers tomorrow; I’m talking in the Drive-in Theater at 11:30am, and at my booth right outside the Automotive Hall of Fame all day. Come by and launch a rocket with us!


Liz Arum’s 2011 Workshops

I’ve meant to post this for ages, and it somehow kept slipping through the cracks. About a year ago Liz Arum (of Makerbot fame, at least for me) did a summertime DIY/making workshop with a bunch of kids and built a few projects from SnipBurn (as well as others). She posted a bunch of pics that warm the cockles of my heart:

the rest are here)
As it turns out, Liz used 30-gauge winding wire for the pickups in those $10 Electric Guitars–significantly beefier than the 42-gauge I cal for in the book, and also significantly easier to find at RadioShack. This, obviously, takes many more windings than the 42-gauge design, but she reports that the sound is good. I’ve since talked to other SnipBurn makers who’ve likewise used these much thicker gauge wires and had good results, so I’m going to start experimenting with this cheaper/easier wire as I work on projects for my next book (which is all musical instruments). Stay tuned for more details on my findings.
FYI, if you’ve built something cool based on one of the projects in SnipBurn, then totally hit me with some links to pics, audio, or video; I’m happy to add it to the gallery and share your links.

The Flyest Single-String Electric Guitar I’ve Ever Seen

This is the diddley bow that Chris Lynas built last weekend, riffing off the “$10 Electric Guitar” in Snip, Burn, Solder, Shred (Project #13)–plus a sweet lil Dirt Cheap Amp (Project #12) to go with it:

And here it is in action:

I *love* this! Such a great fit for these lil hands!
Incidentally, Chris is one of several builders who have used a thicker gauge of wire to wind their pickups and still had good results. Quoth Chris:

I used 40 gauge wire because it was what I could find. Works ok and was easy to handle with 5yo assisting. In combination with the beefy magnet it’s quite a hot pickup. Neck is ash (from past project), body from old pine shelf. Machine head and string cost about £4 total from local guitar shop. All other hardware from the bottom of the toolbox.

I.e., Chris stayed within the $10 budget, despite the strong pound sterling! Supercool!
Some folks may already be familiar with Chris Lynas from this project, where he 3D-printed new discs for an old-school Fisher-Price “record player” (which was actually technologically more of a music box):

(Worth checking out the link, as the code/CAD-based solution is pretty fascinating.)
*thx Chris!*

A Valentine’s Day Sock Cthulhu

I received this email two days ago, but decided to sit on it so as not to inadvertently spoil any Valentine’s surprises. Cirsten writes

Hi David: I found your sock Cthuhlu on ManMade and had to make it for my bf for Valentine’s Day. Now I am a very crafty girl, but have never sewed anything in my entire life (27 years) but had to do it…so I am sending you the results. This vday sock monster was created in 4 hours (had to figure out how to sew it all together and find wire for the wings, used underwire from a bra lol)
Well hope you like and I made you proud.

Yes indeed! The underwire wing reinforcement is *genius*! And I *love* this fella’s saucy little pose on the sofa:

Check out a couple other pics here (man, I *love* those wings!)
*thanks Cirsten!*

Boomerang Success Story!

Make A Simple Cardboard Boomerang | Apartment Therapy

(credit: Richard Popovic)
I remember when my brother got a foam-rubber boomerang at the circus one year. We spent hours throwing it at each other in the backyard, desperately trying to get it to come back to us with little success. I figured I just didn’t have the knack. As it turns out, it was the boomerang’s fault (I knew it!), and I can make one in a few minutes that is guaranteed to work. Sign me up!

FACT: Hearing about folks’ success with one of my projects is just *insanely* gratifying–and all the more so when it’s a boomerang success story. My introduction to boomerangs as a kid was *also* a circus souvenir, and I had *exactly* the same experience as Richard; soured me on the damn things for ~15 years.
Do you have a boomerang success story? Send it my way; we need to push back against all the terrible boomerang karma drifting around out there.

My Favorite Sock Cthulhu Yet!


ink spot: Sock Cthulhu
Dear friend Corey Johnson made several improvements when building her Sock Cthulhu, all of which I heartily endorse. I *love* these wings! Check the link for details on her mods.

If you make a sock monster–or anything else–feel free to drop me links, and I’ll add ’em to the gallery.
*Thanks Corey!*