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Nov 222011
 

We’ve had a few knitting machines rattling around the space over the years, but when fellow gadget lover Josh dropped off the lace carriage for our Toyota K747 knitting machine, I figured it was time to take it past basic stockinette stitch and explore the machine’s punch card mechanism.

Like most decades-old machines, a layer of dried oily gunk coated many of the moving parts. There are also a few broken/missing pieces. I’m in the process of cleaning / fixing the machine, and trying my best to document it as I go along. I got a hold of the K747 Service Manual, and started diving in. It’s oiled up now, and the next steps are to repair the broken needle selector and write up a program to generate punch cards for the laser.

Busted

 The picture above shows the offending broken lever. These 12 little blue levers tell the machine which needles to push out for the patterning, but lever #3 is broken so it never engages. Getting in to replace it is a bit daunting, in fact just getting to that lever in the first place was a bit of an event, I’m going to attempt to fix it with Sugru first. If that doesn’t work, then I’ll be makerbotting a replacement and praying I can get it all back together after dismantling it.

Since the machine is loud and takes up space I generally only work on it during the day when there’s more room, but if there’s sufficient interest I’d be happy to demo it at an upcoming craft night.

You can see more shots of the inside of the machine over on my blog: Knitting Machine Teardown Part 1 and Part 2.

Nov 202011
 

New Work City is a fantastic co-working at Broadway and Canal in manhattan. If you’ve never checked out a co-working space, it’s a lot like NYC Resistor, except instead of gathering in the evenings to hack on projects, it’s a place for freelancers, entrepreneurs, and anyone else who works for themselves to get stuff done.

It’s also a great source of community and connections, and as New Work City starts ramping up their own classes, we’re doing a bit of cross promotion. We think many of the classes will be interesting to the NYCR community!

Upcoming Classes at New Work City:

Check out their full class roster for dates, and sign up for their newsletter to get updates!

Nov 182011
 

Earlier this week I went to MICA in Baltimore (and last month to CDI in Winston-Salem) to meet with a diverse group of very forward thinking individuals on the topics of art, science, education, innovation and all the ancillary things that get wrapped around that, in other words: the whole universe.

Folks from the NSF, NEA, several academic institutions, hackerspaces, and industry came together to start a discussion about advocating for an educational system that reminds us art and science do not need to be taught separately; and that formal and informal educational spaces have benefits of working together and sharing their research, be it citizen scientists and tenured professors, k5 to grey, cats and dogs, and other predetermined groups that result in mass hysteria. Creativity happens everywhere, in every subject matter, as does science – this is something we’ve witnessed at NYCResistor from the amazing projects people bring in every Thursday night at craft night. Our tagline at NYCR is we learn, share, and make things – not unlike the goals and missions of academic institutions.

The group has been given legs from a joint effort from the NSF and NEA and has yet to choose a name and website to point to, but is called NSEAD (Network to support Science, Engineering, Arts and Design) under the grant proposals. I am hopeful in the initiatives we will all be able to accomplish together. Members of this group previously have founded the STEM to STEAM initiative, including Art in the STEM curriculum and held a congressional hearing along these efforts. The discussion is just starting, and is being seeded with thoughts of innovation without walls, economic development, open research, art/science mashup exhibits, and even elephants. I’m honored and excited that the DIY community and hackerspaces have a place at this table.

Stay tuned, tell me your thoughts, and hack on – whatever your day job is.

-pip

 Posted by at 2:06 am
Nov 122011
 

ATTiny10 programming

Using Darrel Tan’s Programming the ATTiny10 instructions and a SOT-23 breakout board by Raphael, I was able to flash one of these very small MCU chips. Given the small package, these programmable devices can be dropped just about anywhere on a circuit that a transistor would be used.

Unlike Tan, my FTDI breakout cable does not have DTR, so the reset pin on the chip needs to be pulled low manually to put it into programming mode, and the pinout adjusted. Full instructions after the break…
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 Posted by at 11:54 pm
Nov 052011
 

NYCR Ham party

C’mon out this Saturdaytonight at 8pm for our monthly first Saturday party. It’s our excuse to get the place cleaned up and in party shape. It’s a BYOB chill and chat extravaganza!

Update: I hear barbot may be making an appearance.

Update 2: Witness the firepower of the fully armed and operational BarBot (and other photos from the party):
Barbot returns

Hex-curious?

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Nov 032011
 

Have you ever wondered how to make sense of hexdumps?

e1a02000e5d00000 e3500000012fff1e
e3a00000e2800001 e7d23000e3530000
1afffffbe12fff1e

Or been curious to know what exactly does a bxeq lr instruction mean in assembly?
Hex curious?

If so, then you should sign up for the introduction to assembly programming and reverse engineering class. You can learn assembly programming and machine architecture using reverse engineering techniques on your own code. In this class we will write code, compile it into an executable and then disassemble it to learn about registers, stacks, branches, function calls and argument passing, structs and other common idioms.

Experience with any programming language is required; the examples in the class with be in C, with dissassembly into ARM assembly. Bring your own laptop with arm-elf-gcc and associated binutils installed to follow along.

 Posted by at 8:22 pm
Oct 312011
 

Yes there is no laser night tonight. Why? Because its HALLOWEEN!
So please go give children candy instead, and leave some for us adults too. Laser night will return next week at its regular place and time.

Oct 312011
 

Kevin Green, who is making a new Arduino compatible rapid prototyping board, approached us to see if we’d be interested in chatting about his new project. It’s essentially like an Arduino, but instead of just having rows of headers that you can plug anything into, it’s designed to accept any of a bunch of pluggable sensors and parts. It has a breadboard built in, and it dresses like a New Yorker (that is, all in black), so it looks pretty rad. I asked Kevin a few questions about the project, which you can read after the jump, or you can head straight to his kickstarter here

Who are you, and why did you start this project?
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