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Feb 092015
 

LED Cube

It’s something of a rite of passage for hackers and electronics tinkerers to put together an LED Cube. It’s a great way to build something from a relatively minimal amount of components while building knowledge of diodes and microcontrollers, as well as a test of soldering skill. It’s also something that I’d never done myself, so I set out a few weeks ago to put one together.

I found plenty of illustrated guides online; Instructables has at least two: http://www.instructables.com/id/LED-Cube-4x4x4/ and http://www.instructables.com/id/The-4x4x4-LED-cube-Arduino/ are quite good. Putting the cube itself together was a great challenge and took me a day or two. However, once that was all done I found that the software was a bit of an afterthought (and in some cases left almost entirely as an exercise to the constructor.) So this weekend I spent some time putting together a C library for Arduino (or Arduino-like) microcontrollers for controlling a 4x4x4 LED cube (although it could easily be adapted for different sizes.

You can find the code on GitHub.

Feb 092015
 

Last weekend was the awesome Art Hack Day hackathon, organized in part by Resistor member David Huerta and Resistor friend Shayna Gentiluomo. Artists from all over were invited to the awesome Pioneer Works space in Red Hook, Brooklyn, where they met, brainstormed, and executed on a wide array of ideas spanning many mediums, in less than 48 hours.

I showed up uninvited, glued a Beaglebone Black to a Pringles can, and ended up with a note on Makezine:

Built with an A-version BeagleBone Black, this WiFi Taser by Max Henstell turned a Pringles can into an antenna gun of sorts, using Python to send deauth packets to knock nearby laptops off wi-fi.

WiFi Taser by Max Henstell

arthackday-deluge_wifi-taser

Resistor member Adam Mayer and 3D artist Bradley Rothenberg put together this awesome robot utilizing a broken security camera that I rescued off the Google building after Hurricane Sandy:

Last Robot Left Alive, by Bradley Rothenberg and Adam Mayer. The installation postulated the resurrection of a broken security camera that fell to the ground, likely due to wind sheer from Hurricane Sandy.

Last Robot Left Alive by Bradley Rothenberg, Adam Mayer

Resistors Olivia Barr and Ariel Cotton were also present to whip up a cool robot, a trash-creature from the Gowanus Canal.

My silent favorite of the show wasn’t operating optimally, but I know where this one comes from. Monster Mash, by Olivia Barr and Ariel Cotton, turned upcycled junk into a creature from the Gowanus Canal, a nearby Superfund site with record levels of pollutants.

Monster Mash by Olivia Barr, Ariel Cotton

Check out the rest of the awesome projects over at the Makezine writeup of Art Hack Day: Deluge.

 Posted by at 7:01 am
Feb 022015
 

NYCR Nail art makealong

NYC Resistor members Colleen AF and Shelby recently led a workshop on nail art during the first of their 2015 Make-Along Craft class series. Many of the participants opted for laser cut stencils to jazz up their nails — it is totally safe and doesn’t involve putting your hand in the laser.

PCB Nail art

I wrote a quick Nail Art HOWTO if you’re curious how the process works. It is very surprising how much fine detail you can transfer with the right nail polish and some practice with the technique. Those traces would work for 0603 SMD parts without too much difficulty if we could find the right conductive paint and power supply.

Jan 262015
 

Wireframed dodecahedron

Sometimes I want to fabricate things that are larger than the build volume on my 3D printer or to make things that are hollow and can be covered with fabric to diffuse LEDs inside. To help out with that, I’ve written a program that will generate 3D printable versions of just the vertices — the resulting object looks like a real-world wireframe of the STL file. This also lets you use other materials for the edges, like wooden dowels, laser-cut acrylic or aluminum extrusion, and makes it easy to cover with stretchy fabric.

Wireframed dodecahedron

The wireframe program parses the STL file, finds all of the unique vertices, eliminates coplanar edges and generates connectors for the ones that remain. It isn’t very smart about some of the intersections of very acute angles, and the output OpenSCAD file needs some cleaning up before it is ready for printing, but simple low-poly shapes can be fabricated without too much effort.

Dodecahedron Connectors

More info is at trmm.net/Wireframe and the source is available. I’ve also posted the dodecahedron that you can make with regular unsharpened pencils from the office supply closet: thing:653464 on thingiverse. I hope you have fun making large-scale things!

Jan 262015
 

laserhalloween

Due to the incoming snowpocolypse there will be no laser night tonight. Instead, please enjoy this scary pumpkin. Stay safe!

Jan 142015
 

NYC Resistor and Urban Glass have joined forces to bring you some tech inspired crafty creativity. The class is scheduled for Sunday, January 18th at 10am.

Resistor’s new cutting laser will be put to use to etch designs in glass through a masking tape resist. Amazingly, the masking tape holds up well against 60 psi of flying sand. Maybe we should all make masking tape ponchos for next year’s Burning Man.

card_lasered_masking_LRbicycle_back_etched_LR

The designs are taken to Urban Glass to sand blast the etch a little deeper to accommodate enamel.

sand_blasting_card_LR

Then, enamel is painted into the sand blasted recesses.

painted_card_masked_LRaction_shot_bicycle_card_LR

The lasered masking tape is removed, and the glass is ready for firing overnight with a long ramp up and a long cool down cycle.

Bicycle_card_painted_LR card_before_firing_LR

The fired pieces will look very similar to this. The enamels don’t change color much in firing unlike some ceramic glazes.

Taprats, an iterative design tool, was used to simulate an Islamic tile pattern. The lower half pattern is the negative of the upper half.

Islamic_tiles_enamel Islamic_tiles_enamel_2Islamic_tiles_enamel_3

We’re also experimenting with halftoned images. More images to come!

This is the first in a series of exploratory classes combining the creative power of two great Brooklyn spaces. Come join us on Sunday. The class sign-up is here.

 Posted by at 12:12 am
Jan 132015
 

codelib

We’re excited to announce that Code Liberation will be guest-hosting an intro class for women next Wednesday evening on programming button- and LED-based games. No programming experience? No problem. They’ll walk through setting up the hardware, connecting everything to your laptop, and coding a simple game to get you started.

Tickets here on eventbrite, more info below. Continue reading »

 Posted by at 1:14 pm
Jan 122015
 

screenshot20140527at2.54.08pm dscn0072

Announcing the 2015 Make-Along series at NYCResistor and our brand new MAKE-ALONG CLUB pass! Get a full 12 months worth of craft classes for the price of a single class elsewhere! (Pass starts whenever you buy it, so if you buy it May 2015 it’s good til May 2016. Woo!) Our main goal at Resistor is to get more people making things and feeding their creative brains. Come be creative with us!

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Join us this Sat for NAIL ART! Learn tons of nail art techniques including how use lasers to make your own custom nail stamps. Seriously guys. LASER NAILS. Can you get any cooler.

2015 MAKE-ALONG CLASSES ($10 – $15 each class OR a full year pass for $85! Taught by Colleen AF Venable (hey that’s me!) and Shelby Arnold.
January 17, 1-4pm – Nail Art
February 8 , 4-7pm- Paper Electronics (please note later time slot)
March 8, 1-4pm – Crochet & Amigurumi
April 12, 1-4pm – Book Binding
May 10 , 1-4pm- Terrariums
June 14, 1-4pm – Print Making / Screenprinting
July 12 , 1-4pm- Plushies
August 9, 1-4pm – Washi Tape
September 13, 1-4pm – Soft Circuits
Oct 4, 1-4pm – Dioramas
Oct 11, 1-4pm- Costumes
Oct 18, 1-4pm – Bento Box
Oct 25 , 1-4pm- Pumpkin Hacking
November 8 , 1-4pm- Pop-Ups
December 13 , 1-4pm- Holiday Crafts

Come be crafty with us!

concertina6 SAMSUNG

Jan 122015
 

Max and I pleased to announce a new project we’re working on for this years Burning Man called the Temple of the Unticketed. We recently passed the first hurdle of getting a grant from Burning Man Arts and are working on submitting a full proposal now.

The Temple of the Unticketed brings people together, even if they can’t make it to Burning Man. The installation encourages participants both on and off playa to contribute four frame photo vignettes which are displayed on 512 backlit LCD screens attached to eight freestanding structures.

We’re using a BeagleBone Black to drive blocks of 16 screens, which was a real challenge using the onboard PRUs. Max figured out a way to hack the GPMC to jam data, he’ll post more on that later.

We’ll keep posting updates to the NYC Resistor blog. You can find out more at templeoftheunticketed.net and check the source on our GitHub

Jan 112015
 

We’ve added a new information screen at NYC Resistor on the new wall that we built next to the new laser cutter. It has a Raspberry Pi connected to the local ethernet and boots into a full-screen kiosk display based on the instructions. To do this we modified the /etc/rc.local to invoke Chromium in “application” mode, which has no GUI chrome or user-interface elements:

 chromium --app="$URL"

Right now it shows us current tweets about @nycresistor, although the plan is to add video feeds for a front-door camera, Laser-vision and other stats about the space. Have any idea how to make this display more awesome? Let us know!