ALL ART BURNS

[This is going to get a bit nerdy, but don’t worry, I save the hardcore stuff for my nerd blog.]

I had an idea recently for a different way of making ground plane antennas for the 2M band. Don’t worry about what they actually are, suffice it to say that they occupy a lot of volume and are a pain to transport. Imagine a pyramid made out of four 60cm coathangers with another 60cm coathanger coming out the top of the pyramid and you’ve got a typical ground plane antenna. On the other hand, they’re cheap, easy to build and can be tuned/adjusted with the SWR meter in a decent VHF radio.

(Ok, that’s pretty much all the geek stuff out of the way. See, that wasn’t so bad, was it?)

So here’s the problem. What if you want to toss a ground plane antenna in the back of your car, carry it somewhere on your bicycle, or have it as part of an emergency “go bag”? Are you really going to cart around a delicate bit of metal sculpture that occupies a rectangle a half-meter on each side and a meter tall? No, you aren’t.

This became a problem with an interesting combination of design and fabrication: How I could make it easier to transport and store but still be easy to set up and function correctly as an antenna? The idea of making it fold up seemed like the most obvious solution, but folding means moving parts which means more chance of coming apart. However, most people use this sort of antenna in a fixed location, often inside an attic or outside resting on a flat surface. At worst it might be used outside in windy situation and I’m thinking about a second version for that sort of environment. I started my process with the traditional sketching but instead of making foamcore models I decided to fire up the MakerBot Cupcake I built last winter and start out with ABS prototypes.

Total time spent modeling and printing each iteration was about an hour, and it was easy to fit that in at night after dinner over a few nights. The first few didn’t work very well but I quickly hit one that did work and that was a relatively simple piece of plastic. (Ok, it worked better after a bit of filing and sanding, but it worked.) Within a few minutes I’d bent and cut some welding rod, soldered a stick of it to an adapter, tweaked the resonance a bit, and I had a working antenna for not very much money.

The problem quickly became “How do I share this with other amateur radio operators?” Sure, I posted the STL on Thingiverse, but you have to own or know someone with a 3D printer for that to be of any use.

I think the answer is going to be Shapeways. I’ve ordered printed items from them in the past and while they aren’t cheap, they have wonderful print quality and ship worldwide. I’ve started the process of setting up a store there and in the spirit of Amateur Radio will offer my antenna mount for minimal markup.

In a few months we’ll see how this experiment worked: Can a design concept prototyped on a hobby 3D printer be turned around and sold for a small profit by a commercial fabrication shop? What are the unexpected surprises or hidden gotchas that need to be solved for this to be more than a hobby and instead a viable business model?

I took a break from the insane day job and home remodeling to do a weekend photo workshop with Scott Church. He’s brilliant at photographing people, does everything from babies and kids to birthdays to weddings and traditional glamor/pinup. A friend of mine from design school agreed to go along as my model/collaborator and we made some art that we’re both quite proud of. She brought a lot of costumes, I brought a lot of props, and while everyone else was shooting naked/pinup/whatever we were shooting comic book panels. The full set is here.

This was two light sources — the sun and a fill flash, no Photoshop involved — Scott explained how to set this up in about an hour of live demonstration. (And yes, that really is a Gerber Mark II. :-):

Natural light from one window and not much else. And no, it’s not real. It’s a $10 prop from eBay with an edge duller than most butter knives:

One thing I really enjoyed about working with Scott is that he made us take lots of test photos, some of them came out as good as the “real” photos. Here’s one where I was trying to balance natural light from outside with light from a lamp:

Normally I don’t cross-link between my design and fun blogs, but I wrote a review of a local restaurant and their design process.

As documented earlier, complete this statement every year while limiting your answer to 15 words or less,

“I want to be a designer because …”

…I like finding and solving wicked problems, and design is full of them.

I’ve got a backlog of stuff to write about, including this really great book by Graham Pullin, “design meets disability”. Things have been hectic at The Job That Does Not Pay Me To Blog so it’s been hard finding the mental energy to be smart about non-work stuff.

Until yesterday, that is, when my partner tripped and broke several foot bones that are needed for things like walking and driving and the like. So not only are crutches involved, but we live in a two-story house with the bath upstairs, kitchen on the first floor, and laundry and storage in the basement.

We knew our 1950s house was nowhere close to ADA when we bought it, and we often joke about how ADA-hostile Pittsburgh is in general.

I guess now we’ll get some first-hand experience as to just how bad it is and what we — as designers — can do to help fix things.