This is an update on the progress of the mirage. Enjoy:
This past week or so I’ve been consumed in building this thing… here’s a little update as to how everything is coming together:
Here are two images of the top of the mirage. It’s a container completely built with 3/8″ Acrylite (basically Plexiglas, just a different company). It’s two by three feet, with 6 inch tall sides. The joints are (hopefully) waterproof, and the main sheet of Acrylite has 128 holes laser cut into it. Here’s a closeup of the holes:
The sooty black marks, I think, are burn marks from the laser cutter. Cool, no?
The plan is that this structure will be elevated by these four booms:
*Sorry about the image quality there – this photo was taken in the poor lighting conditions of my basement, so I had to Photoshop it the best I could. What you’re looking at is four clear tubes being glued down to circles of Acrylite. The chairs and metal rods taped to the Acrylite rods are there to keep everything in place while the glue dries. Here’s a closeup image:
And what’s the plan for the falling water? I was going to build another Acrylite structure to catch all the water falling through those holes, but that turned out to be way too expensive. So, instead of hours of work on needlessly gluing and waterproofing expensive plexi, I swung by Target and bought myself a kiddie pool:
Word… Word… When I was blowing this thing up in my living room, I realized that this is a hazardously large amount of water. I had planned on doing all this in the studio on the second floor, but imagine the mess this thing would cause if it started leaking. This is why operations have moved to the basement. I think it’s a true mark of geekdom when your work forces you to work in the basement.
The water pump is in the mail, and should be arriving soon. It is a Fountain Tech FT-1300 from Fountain Mountain. I need a few more pieces of plastic from Canal Plastics to mount the top piece to the legs. Apart from that, I’m ready to roll.
So it turns out I didn’t realize how geeky I was until I found that I enjoy working with CAD. CAD, for you non-geek folk out there, is ‘computer aided design’ – or a drafting computer program. It helps me out when I want to build and play around with design ideas for the mirage.
I was forced to start CADing when I wanted to get my work done for me by a machine, rather by hand. Here are a few images of the AutoCAD file I’ve been working with:
* Full view. The rays coming out of the origin represent the rays of light coming out of the projector’s focal point.
* Up close image of the field. Every ray of light intersects one and only one dot – the dot placement was randomized by a computer – well, mostly randomized. I manually edited dot location when they landed too close to one another.
* The final pattern, with all the markup taken away. This is the pattern that I emailed Canal Plastics to get a quote.
I’m going to cut it in a 2′ x 3′ sheet of 3/8″ plexiglass. The sheet will run about $60 and the cutting $65. I didn’t get a quote on the construction, but I’d assume another $60 or so on that. So, I just gotta wait on my tax return. The end result of all of this (*knock on wood) is a 3d renderer that I can put my hand into. Sw337.
A while back, I made a prototype idea for something called the mirage. The mirage is a Wiremap, where the wires are replaced with streams of water. When I came up with it, I imagined it would be ten feet tall – the size of a small room, so that people could dance in it.
I decided instead to start small and work my way up. I’ve spent the last couple of weeks playing around with plastics – plexiglass, specifically. Fortunately, over in Chinatown, there’s this awesome little shop known as the Canal Plastics Center. They sell everything you’d ever need. They also custom build your designs, as well as provide a high precision laser cutting service.
At first, I was excited to just by the raw material and do all the work myself. But after all the testing, it turns out that I have neither the tools nor the knowledge to actually accomplish what I want to accomplish. I tried to drill holes with a drill gun, but they’re never perfectly perpendicular – I tried to joint two pieces together, but the jig saw cuts I made can’t really compare to their table saw cuts.
I sent off an email earlier today for a quote for a test hunk of plastic. I wanna see how well these cuts can perform.
Thought the Wiremap 256 was cool? Try a Wiremap 783!
Earlier today I got an email from Elliot Woods, the undergrad at Manchester University who had a couple months back expressed interest in building a mammoth Wiremap. He runs an annual not-for-profit music festival called Pangaea, where they built and shared their work:

Yeah… It’s kinda big.

They got the system up and were rendering 3d before the event – but as soon as the subwoofers came on, the projectors jiggled out of alignment, obscuring the 3d image. Instead, they just threw Milkdrop onto it (musta looked kinda like iTunes on my Wiremap 256… but much bigger, or course).
Seeing photos of a Wiremap this big really inspires me to build more work for it. Live motion capture could be projected into the Wiremap – so that you could watch a digital image of your body in 3d space. Or maybe you could play tennis. Or maybe even 3d machinima?