When I was a teenager I wanted a “real camera” so so much — I built a pinhole camera from the instructions in a 4-H booklet, and I shot rolls of 110 with it and also a crappy little camera I bought at a department store with money from my library job. What I really wanted was a 35mm camera, though — a Real Camera.

I never got that real camera, although over the years I shot plenty of rolls of 35mm film in various random point-and-shoots. I always found it kind of dissatisfying, though. But five or six years ago I got a digital point-and-shoot and it was wonderful! I took so many pictures, and learned so much, and last year I jumped in with both feet and bought a Nikon D70 and a couple of lenses — in my heart, this was my first Real Camera. I got even more excited about taking photos with my first real camera and this has inspired me to go on with my love for photography. Now, I’ve got more inspiration to preserve them through online photo book makers like PrintedMemories.

Tenzing! cc-licensed by yarnivore

This month, though, I’ve made a 180-degree turn. Instead of pursuing fancier and more expensive digital technology, I’m exploring 35mm film rangefinder photography. In 2009!

Yashica Electro 35 G – photo by Suviko – cc-licensed

I’ve been thrilled to discover that there are so many wonderful people, all over the web, still using these cameras. Better yet, they not only post their photos, but belong to super-active communities where they discuss the gory technical details. The didactic generosity I’ve seen already is wonderful — people really take the time to share their knowledge.

Electro 35 test shot – cc-licensed by Geopelia

I’ve cleaned up my new/old Electro 35 G (it’s got a 45mm f/1.7 Yashinon lens) as well as an Agfa Silette (Apotar 45mm f/3.5 in a Prontor-S shutter). I’m in the middle of shooting my test rolls, and I can’t wait to see the shots!

Turns out I’m not the only person at the Resistor who likes cameras and film — so we’re going to be playing with developing here. Of course, there are groups on Flickr for that, too.

It’s taken over 20 years for me to get back to the idea of shooting 35mm (and soon, 120) film. I’m perfectly happy with how this has turned out, though. If Malcom Gladwell is right, and you really do need 10,000 hours of practice to succeed, then I’ve just been putting in my time, shooting lots of frames and getting more comfortable with my tools.

I had a great idea for a new, drastically simplified extruder design for RepRap. I decided to spend a day on it, and if it proved fruitful, then I’d pursue it more. Thank god for the laser cutter at NYCR, because I had a working prototype made up in an hour. After that, it was fairly simple to design a nice layered housing for it and make it into a reliable little beast.

There is a much more detailed post on the RepRap blog, you can look at my flickr set, or check out the design on Thingiverse.

We’ve been using GM3 gearmotors for our RepRap extruder motors, but they have a few problems (most notably being underpowered and having cheap plastic gears) so I decided to shop around and try to find a motor that I could be proud of. I stumbled onto the site kysanelectronics.com and ordered a bunch of their 12v DC gear motors. I got about 10 different motors with various gear ratios, sizes, etc. I decided to sacrifice one and take it apart. Turns out I was actually (miraculously?) able to piece it back together again, in working order too!

Here is a flickr set with the teardown.

Anyway, here are a few observations about these motors:

* they are all-metal construction (gears, housing, shafts, etc) the only plastic was an insulator on the terminals
* they are very powerful (my test is attaching vice grips and letting them rotate the vice grips, then trying to stop the rotating pliers with my hands. all could easily move the pliers, and most took a decent amount of force to stop)
* they are pretty cheap! for a single motor, they are $9.07 for a single unit and at volumes of 100+ they drop to $7.34. Not as cheap as the GM3, but they have dramatically higher strength, etc.

I think I may just have to place an order for a hundred of them. =)

Sometimes I blow out transistors.  Sometimes they smoke.  Sometimes they fizzle.  And sometimes, like today, they fail so catastrophically that they blow the face of their encasing epoxy across the room:

(The transistor behind it merely cracked in two.)

As part of my talk for 25c3, I spent some time talking about weaving looms. Looms are a lot like giant physical graphics processors. They’re also considered to be the first machines to really make use of punch cards.

At the Deutsches Technikmuseum in Berlin they have a ton of old industrial textile equipment, including a beautiful Jacquard loom. And next to it, a fantastic model which shows you just how a Jacquard head works. It was so great I had to snap a video of this new tech I was witnessing. If you business is in the need of new technology just like this shop, then consider using this messaging service for business to notice the improvements. 

You can see photos and video of the loom itself over on my blog, Kellbot!

More awesome textile tech was a punchtape driven embroidery machine which was completely mechanical. I couldn’t find much information about it, so if anyone knows about these machines let me know!

Of course there’s a ton of other stuff at the Tech museum… planes, trains, automobiles, math… we spent about 5 hours there and still didn’t see all of it. If you’re in Berlin you should set aside half a day to go see it.