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No Signal

No Signal

“No Signal” was a project I wanted to do back in 2014, but never had time to. The idea was to have a projector set up in a space with a video playing that suggested the projector could not find the input source. For anyone who has done a presentation or had to deal with a data projector, you probably know the joy of changing the inputs, waiting for the signal to sync, and even “perfecting image” messages.

It’s 2015 and we still can’t plug a computer into a projector and have it “just work”.

No Signal

Since we needed some projects for the Dark Room at Maker Faire Milwaukee, I figured this would be a good fit. I quickly edited together a video (and I was suffering from a lack of sleep when I did it) that got more ridiculous as I kept adding things. I gave my projector to Bryan Cera for his “Entertainment System” project so I ended up using an old Apple Cinema Display I had on hand. The front looks very clean and stylish…

No Signal

…and for anyone brave enough to look at the back, I wanted it to look ridiculous. Insert comments here about how Apple products are clean and beautiful on the surface while hiding the ugly shit so you can’t see it. I used a lot of zip ties to secure the Apple Power Brick™ to the back of the display, and also added a Raspberry Pi to play the video. There’s also an DVI to HDMI converter in the mix.

No Signal

This is some very sophisticated last-minute rigging right here! (Note the masking tape that secures the SD card in place.) The video is below for you to enjoy.

No Signal

No Signal

No Signal

No Signal

Disclaimer: I may have been slightly inspired by Improv Everywhere.

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The Maker Movement is about 3D Printers

Jay Silver

I’ve seen a lot of people share this post from Jay Silver titled The Maker Movement is Not About 3D Printers, which bothered me, because the Maker Movement can definitely be about 3D Printers, or Robots, or microcontrollers, or laser cutters. It can also be about sewing, and growing your own food, and building furniture, and hundreds of other things.

Why was this titled “The Maker Movement is Not About 3D Printers” instead of “The Maker Movement Is about Freedom”? Oddly enough, the second level heading is The Maker Movement Is about Freedom.

3D Printers provide freedom. They provide to individuals with a few hundred dollars the ability to design things, and make those things into real-world objects in an afternoon, at home, without having to deal with service bureaus or companies who might put restrictions on what your want to create. You can also order a bunch of parts on the Internet, get them delivered to your house, and build a robot. Was that possible 20 years ago? (At a reasonable cost, anyway?)

Maybe the jab about 3D Printers and robots was just there to create controversy, I don’t know… but it seems weird to single them out. I’ve had my ups and downs with 3D Printers, and yes, they do fail, and sometimes suck, but so do computers, and other tools, and people. Nothing is perfect… and maybe that’s a big part of the Maker Movement, recognizing that the world isn’t perfect, but realizing you can change it.

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Return of the HDPE

Recycled HDPE Plastic

It’s the return of HDPE! I was recently at IKEA and grabbed a metal baking pan. I gave up on glass after the last episode, and while people suggested Silicone, I never got around to buying a Silicone pan.

Recycled HDPE Plastic

Now, it’s important to remember this is recycled HDPE, and it’s not virgin material. Also, some foreign matter may get mixed in. The HDPE for this batch came from a few sheets I asked John McGeen to plane for me. He swept up the shreds and bagged it and returned it to me to re-melt. (The sweeping from the floor is probably why some foreign matter gets in.)

Recycled HDPE Plastic

The bottom (the part that was touching the metal pan) shows a bit more of a “burny” look to it, being yellow, and such. That may be the difference between glass and metal. I’ll experiment more to find out.

Recycled HDPE Plastic

Like the other pieces I pressed the hot HDPE between some pieces of wood. Removing the plastic from the metal pan was much easier than the glass pan. You could even consider skipping the pressing and just let it cool in the metal pan. It should shrink a little bit and pop right out.

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Raspberry Pi Mounting Plate

RPi Mounting Plate

I needed some Raspberry Pi mounting plates, and while I’ve used this 3D printed version before, I didn’t have time to print six of them (and I didn’t have a functional 3D printer at the time.)

Raspberry Pi Mounting Holes

I grabbed a hole pattern file from Raspberry Pi Spi and used to create a simple plate with holes to attach the Model 2 B+ Pi using 2.5mm x 12mm screws.

RPi Mounting Plate

RPi Mounting Plate

There are tiny spacers that go on the 2.5mm screws to prop the Pi up 3mm. As long as you’ve got a laser cutter, you may as well cut your own washers, right?

RPi Mounting Plate

The larger spacers should be placed under the plate when it is screwed into whatever you’re going to screw it into. I’ll be screwing six Raspberry Pi plates into a wooden cabinet.

RPi Mounting Plate

You can grab the files from YouMagine or Thingiverse, though neither of those sites really cater to laser cut files… oh well.

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Makerspaces and Science Centers

Learning

I attended a session at ASTC 2015 titled Are Maker Spaces Killing the Traditional Science Center? Is That a Bad Thing? and while I’m new to the museum world, I’m not new to the makerspace world, but this whole idea of “makerspace in another space” is what the session was about. This post is really just going to be a stream of my own thoughts after the session.

Hooley McLaughlin from the Ontario Science Centre was the moderator and he was anti-makerspace in the context of a science center, where (he believes) the real spark of science can be ignited in young minds. I don’t know much about science centers or the people who work there, but Hooley seems to place “science” (or perhaps just the teaching of science) in this ivory tower, and separate “Science” from other forms of exploration and discovery. The things than happen in a “tinkering” space or a “maker” space are not real science, and there isn’t true learning.

I’ve been involved with Milwaukee Makerspace for nearly five years, and before that I was part of Bucketworks, which is/was a quasi-hackerspace, and I’ve had this idea that BAMspace at Betty Brinn Children’s Museum) Makerspaces tend to be open 24 hours a day, 7 days a week, with everything available to members at any time. 6am on Sunday morning? 3pm on a weekday? Saturday night from 10pm to 4am? Those are all valid times to be at a makerspace working on things. Spaces in an institution are typically limited by staffing, just having people available to be in charge of things. And people like to go home and sleep every now and then, and not work 24 hours a day… also, when people do work, they like to get paid. So the first big disconnect is “makerspace open all the time to members who are self-serving” versus “makerspace that is available during only specific times with staff to guide things.” I’m not saying the second option can’t work, it can, but for people who know what a makerspace is as it exists outside of an institution, reconciling how they operate inside an institution may difficult.

Perhaps it’s just a matter of managing expectations. If the first exposure to a makerspace is within an institution, that can set the stage for what one is, and how it works. (There’s the issue of the term “makerspace” being co-opted or misunderstood, but I won’t get into that now.) Limited access due to hours, staffing, etc. can definitely affect the reach of a space/program, but as most of the institutional makerspaces seem to focus on kids (or families) maybe it’s a non-issue.

Ultimately, my favorite comment during the session pretty much summed things up. “We shouldn’t care how kids get interested in science, as long as they get interested.” My own take on that is, I try things, and make things, and fail, and learn, and in the end, I share those things. I share them with others, and if they get inspired, even just a small bit, than it’s a success. If someone gets interested in robotics, or looks up what an Arduino is, or asks a question about 3D printers, then that’s good enough for me. It’s a spark, and a spark is the start of something. It may not be the spark that (certain) people at science centers are hoping for, but it’s a success in my book.