Being real, ultimate geeks, [Bill] and [Mara] didn’t want to settle for plain, paper-based wedding invitations. No, they wanted something cooler, and came up with their own DIY electronic wedding invitations.
Since they would be making the invitations themselves, [Bill] and [Mara] needed a simple circuit that could be easily mass produced. They turned to the classic microcontroller-powered blinking LED circuit powered by an ATtiny13.
The first order of business was producing 50 printed circuit boards for each of the invitations. For this, [Bill] picked up an Xerox Phaser laser printer off of ebay and a few sheets of copper-clad kapton film. The etch resist was printed directly onto the kapton film and etched in a bath of ferric chloride, effectively making a flexible PCB.
These circuit boards were soldered up and laminated between the printed invitation and the card stock cutter with the help of a Silhouette Cameo paper cutter. After the cards were assembled, the battery was wired up and the cards shipped out.
The microcontroller inside the card was programmed to be asleep most of the time, waking up only every few seconds to check a light sensor to determine if the card was opened or not. If the microcontroller sensed the card was open, the lights began blinking, making it one of the most memorable wedding invitations [Bill] and [Mara]’s guests will ever receive.
You can check out a demo of the invitations after the break.
Continue reading “Really, really geeky wedding invitations”
Having an open bar usually means hiring at least one bar tender. But this hack does away with those labor costs (and someone to make sure your teenage cousins aren’t drinking) by putting a robot in charge of things. But the fun doesn’t stop there. One of the features of this bartender is that it records a 30 second video every time it dispenses a beverage. We’d image these get a bit funny as the night wears on before taking a dramatic turn into sadness.
The link above shares a ton of details on the device so make sure that you click-through the different pages in the navigation bar. The mechanical page shows off all of the effort that went into designing the machine in Solidworks. The ingredients start on the top layer in inverted bottles. Each feeds to a valve which has its own nozzle. Like a round version of the Inebriator, a glass is placed in a trolley at the bottom that pivots around the center of the machine. Once it gets back to the opening in the acrylic case you can grab your drink, give it a quick stir, and off you go.
Check out the video after the break to get a look at the user interface which includes that recorded video greeting for the happy couple.
Continue reading “Robot bar tender records wedding guests getting drunk”
[Superluminal] received an invite to his friend’s wedding. He got together with some mutual acquaintances to take up a collection as a wedding gift. But as things go, a suitable present couldn’t be found. The pooled money itself ended up being the gift, but apparently a greeting card with a money pocket inside of it wasn’t good enough. The group decided to encase the coinage in a block of sugar that doubles as a lamp.
Now as with many well-meaning projects this started out with a rendering of what the final product would look like. That image came out great, with a high-gloss dark amber cube lit from the bottom with the coins suspended throughout catching a bit of a glint. They bought 43kg (almost 100 pounds) of refined sugar, and made a base/mold combination out of sheet metal. A lot of induction cooking went into producing thick syrup that could be poured into the mold. The problem is the final product is basically opaque. Not a sign of the 300 Euros within.
But don’t feel too bad for the groom and his bride. The image above shows him trying to get at the prize. He must do some hacking himself because he has a pressure washer, jack hammer (or is that big drill?), humongous cold chisel, and sizable hatch already at his disposal.
We can’t help but wonder if a heat gun could have polished the sides of the cube and helped add translucence?
It’s a nice touch to engrave a heartfelt message on a wedding band, and my couples choose to do so. But you can say a lot more with a 20 second audio message. That’s exactly what [Luke Jerram] did by etching an audio track into this ring. He uses his custom-built hardware to playback the message, which you can see in the video after the break. The ring is an Edison Cylinder, which works just like a modern record player except that the media is on a spinning drum (the ring) instead of a rotating disk. We wonder if this would sound a bit better with a high-end cylinder player.
While you’re on [Luke’s] page you might as well take a look at his image projecting ring as well. It has a color image slide on one side and a projection lens on the other. Wacky!
Continue reading “Make the wedding ring speak to her”
For his wedding [Dave] wanted to have a photo booth but the $1k rental price was really getting him down. Instead, he decided to build his own. This cost less money and he gets to keep the booth once the festivities have concluded. He started by designing the assembly in Sketchup, taking into consideration the portability requirements that allow this to fit through doorways. What he came up with is a unit made from one sheet of plywood that folds up via piano hinges and takes about eight minutes to set up (video after the break). But where the design really shines is the all-in-one electronics module seen modeled on the right. It houses the monitor and the computer in one compact and rugged package.
If you like this you should also check out the suitcase photo booth and one other wedding-prompted build.
Continue reading “Foldaway photo booth”
[Joe Bain] built a portable photo booth for his wedding. We’ve looked in on photo booths before, both as a robust feature in your apartment and as a mobile option. But making it part of a wedding reception is the best reason we’ve found to build one. [Joe’s] electronics consist of a laptop, camera, screen, and a big pushbutton that interfaces via a serial cable and adapter. He found some software that was written for photo booths which takes care of almost everything including polling the “go” button.
The booth itself is a frame build from PVC pipe (another chance to use those fancy fittings) with fabric dividers hanging from it. This is fun for the wedding-goers and it produces a bit of nostalgia for your scrapbook.