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The Maker Movement (Audio)

Web414 Matt Gauger and I talked about the The Maker Movement at the February 2011 Web414 Meeting. Here’s the audio in case you missed it.

Besides the history of the maker movement, and the modern-day rise of it, we talked about Hackerspaces and Makerspaces, how they may be similar or different, as well as some of the things that go on at a makerspace, and what type of people (and things) you might find at one. We also talked about our own place here in town, the Milwaukee Makerspace.

We really didn’t do a lot of planning for this talk, as we were filling in for someone with another topic who couldn’t make it, but I think that’s fine, and just goes to show that you really don’t need to prepare that much to speak at Web414, as long as you know the subject, and can speak intelligently about it (or fake it like we did) you’re good to go.

You can find the audio at Ourmedia or the Internet Archive, and you can download an MP3 of this talk.

Also, if you want to get all of the audio I publish automagically downloaded podcasting style, subscribe to the feed.

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Milwaukee Makerspace

Milwaukee Makerspace

I stopped by the Milwaukee Makerspace for a few hours last weekend, and I was pretty impressed with the progress they’ve been making.

If you’re not familiar with a Makerspace (also sometimes referred to as a Hackerspace) check out hackerspaces.org where you’ll learn that they are: community-operated physical places, where people can meet and work on their projects.

CNC Mill (In Progress)

At the Milwaukee Makerspace you’ll meet people who know how to build robots, hack Arduinos, weld, cut, drill and use every power tool/hand tool you can imagine. These guys have built electric cars, furniture, camera control systems, and even gained some recognition in the PowerWheel Racing series at the Detroit Maker Faire.

What was going on Saturday? Brant was working on building shelving space for projects, Matt was planning his guitar repair, Ron brought his keychain video camera (and I played with it a bit) and Royce repaired the access control system. There’s still much to do before the open house on April 9th, 2011.

Makerbot

So even though the Makerspace has drills and saws and tools and welders and electronics testing equipment, and they’re building a CNC mill, and repairing a laser cutter… you might wonder why you would really want to be a member… and the reason is: community.

The guys at the Makerspace are passionate about making things, but they want to do it around other people, not in their basement or garage, but in a space where collaboration takes center stage. And these guys are pretty smart, so if you’re trying to do something but don’t know how… chances are there’s a Milwaukee Makerspace member who knows how to do it, and can help you.

"If you can hack it, you can have it"

This might be my favorite photo of the Makerspace, and it’s a great motto: “If you can hack it, you can have it.” :)

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Friday Night Drawbot

Drawbot
Arduino-Powered Drawbot

Friday night turned into Robotics/Art night at the 2XL Makerspace. I remembered seeing this Drawbot Project, and while you can modify normal servos to be continuous rotation servos, I already had some continuous rotation servos on-hand, so we got to work. (Or play, if you prefer.)

Drawbot parts
Drawbot parts

The Drawbot consists of just a handful of parts. Here’s a list of the items we used:

All of these pieces are available from our friends at Adafruit Industries. You can probably find the parts elsewhere as well, and you don’t need a Boarduino specifically, as any Arduino board will work. I just used the Boarduino because it’s small.

Sharpies and Corrugated Cardboard
A Pack of Sharpie Markers

Oh, you’ll also need some Sharpie markers (I recommend a nice 8-pack of various colors) and a 9 volt battery, a platform, and something to hold it all together.

Servos taped together
Servo motors held together with some tape

The building of the Drawbot was pretty simple. I started by using a bit of tape to stick the servos together with the wheels facing out. This gave me the width of the “platform” I would need. (It had to fit between the wheels.) I used corrugated plastic because it was handy. It’s very lightweight, easy to cut, and pretty strong. You could certainly use cardboard or something like a plastic CD case, but I’m telling you now… corrugated plastic is awesome. (I’m already using it in my next project!)

Once I had the servos secured to the platform with some rubber bands, I put the battery and the breadboard on top of the platform. The placement may be a little tricky, as you need to determine the correct balance. I wanted it to be a bit heavier on the side that would hold the marker, but didn’t want too much weight on that side. Rubber bands make it really easy to move things around.

Close-up of Drawbot
Close-up of Drawbot

With most of the pieces in place, I added the jumper wires between the servos and the breadboard. That’s it for the wiring.

At this point I wanted to test it out. I was impatient and just wanted to find some continuous rotation servo code. A quick search led me to the post Controlling a Parallax (Futaba) Continuous Rotation Servo with Arduino. I ended up simplifying my code even more. Right now the Drawbot just goes in a circle. Yeah, it’s simple, but that’s the way I like to start things. Get the simplest thing working first, and then go from there. (Code is at the bottom of the post.)

Marker holders
Marker holders made out of corrugated plastic

So we now had a robot that went in circles. At this point we figured it was time to draw something! Back to the corrugated plastic. This is another place where the plastic shines. I cut a small piece, and then cut a hole with an X-Acto knife where the marker was going to go. I cut the hole a bit small, and when i slide the marker it, it held it nice and tight. I’m glad I didn’t use cardboard, as it just doesn’t have the strength of the plastic.

Drawbot on it's first run
Drawbot on it’s first run

With the marker in, it was time to test it. We put it down in the center of a 24″ x 18″ drawing pad and turned it on. It spun around drawing circles. Success! We managed to build a robot that can create artwork. :)


Artwork by Drawbot

Since things were all loosey goosey, meaning, our marker holder could shift around, the pad was on an uneven floor, the servos were probably not perfectly matched, etc. We got a circle, and another circle, and another one, all overlapping. In a perfect world I’d suppose you’d just get a circle with every other circle drawn directly on top of it. I think it turned out better our way.

Drawbot making overlapping circles
Drawbot making overlapping circles

We figured that two markers would be better than one, so we tried that next. The results were pretty good. Here you can see how the circles start to overlap. We’re hoping to try with some bigger paper to see what happens when it doesn’t run out of room.

Here’s our code…

/*
 * Drawbot.pde
 */

int servoPinL = 9;
int servoPinR = 10;

void setup() {
  pinMode(servoPinL,OUTPUT);
  pinMode(servoPinR,OUTPUT);
}

void loop() {
    digitalWrite(servoPinL,HIGH);
    digitalWrite(servoPinR,HIGH);
    delayMicroseconds(1500);
    digitalWrite(servoPinL,LOW);
    digitalWrite(servoPinR,LOW);
    delay(50);
}

Again, this code is really simple. All you’ll get is a circle, or, a bunch of circles. But now that we’ve got the Drawbot working, we can start playing around with modifying the code to change it up a bit. We look forward to more robot-created artwork in the future!

Note: Check the project page for more info.

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Holiday Make-a-thon (Time Lapse)

As we often do here at RasterWeb!/2XL Networks, we made a time lapse video… this one is from the Holiday Make-a-thon that was held at Bucketworks recently…

Some of thing things that were made: LED ornaments, handmade wrapping paper, recycled bags, popsicle stick ornaments, and lots and lots of art… Oh there was also knitting, and at least one maker worked on a YBox. There’s probably a lot I missed, but then I was busy making things as well. It was great to see kids and adults working side by side creating things, hopefully we can do it again.

Thanks to Bucketworks for hosting the event, as well as sponsors Milwaukee Makerspace, and UberDorkCafe.

Oh, and if you missed it, don’t worry, I hear they may be planning another one soon

You can also see this video at blip.tv or view an MP4 version.