Month: October 2009

How-To: Make chemiluminescent soap bubbles

No photos yet. That’s a homework assignment for the bubble chemists in the audience. But I couldn’t resist sharing my excitement over this paragraph from US patent 5246631 for glowing soap bubbles:

An example of practice of the present invention involves using a liquid dish such as LEMON JOY available from Procter & Gamble Company (Cincinnati, Ohio). Although the LEMON JOY may be diluted with varying amounts of water, it is preferred that the dishwashing liquid be used at full strength. Approximately 9 milliliters of CYALUME solution made in accordance with the manufacturers instructions are added to approximately 120 milliliters of the dishwashing liquid. Although this particular mixture may be used to produce adequate self-illuminated bubbles, it is preferred that 3 to 4 drops of glycerin be added to the solution as a bubble hardener. The solution is then ready for use to form self-illuminated bubbles.

I’ve never actually measured how much Cyalume (wikipedia) is in a standard glow-stick, but I’m betting you could come up with 9 mL of the stuff by cutting open two or three at most.

Lego foosball!

Lego foosball!

Stretta managed to build a fully functional (and apparently quite fun) foosball table from LEGO parts – My son is really attracted to foosball tables, and, if I’m honest, I’d have to say I am too. I considered the idea of buying a small, tabletop unit, but I was unsure how much use it’d see. […]

Drill-powered “fort” speakers

Drill-powered “fort” speakers

MAKE subscriber John Kelbley was doing some expansion/improvements on his kids’ “fort” and wanted to deliver music to the (unpowered) space. His solution was to use the rechargeable powerpack from an an old 12 volt Ryobi drill and use the drill body as a stand for two outdoor speakers he found on clearance. Amplification is […]

Octoplex polychromic LED pumpkin display

Octoplex polychromic LED pumpkin display

The boys from MaceTech cooked up an impressive yard display with eight RGB LED modules in eight different pumpkins around the yard. Garrett explains:

We made a control board for eight pumpkins, using eight ShiftBars, 50mm cables, a Seeeduino, a ShiftBrite Shield, and a 12V power supply. The ShiftBar potentiometers were adjusted to deliver about 100mA to each of the 24 LED channels. We wired the LED array boards to the control board using cheap 4-wire telephone station cable from Home Depot.

Read more about it here.

Making Football Hero

We never do the same thing twice, and the projects can be pretty stressful as we’re always taking a risk and sticking our necks out, often doing things that have never been done before. We also work with relatively small budgets. Luckily it’s almost always worth the hard work though.

The Maker scene and the general explosion in low cost high technology have been a huge inspiration to us. Many of the things we do would have been pretty much inconceivable ten years ago. It’s also important that we try to work with technologies that the world and his dog aren’t all trying to innovate with. So for example we’ve stayed away from augmented reality as pretty much everyone is trying to create something with those tools.