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Lasers to San Mateo

Road to Maker Faire

Remember my Laser Kaleidoscope project? Well, I entered into into the Road to Maker Faire contest, and now I need your vote!

Help send me (and my laser!) to the Bay Area Maker Faire. Use the big bold button below to vote for my project. (You’ll need a Facebook account, but 98.483% of people who use the Internet seem to have one.)

But why should you vote for me? I’d like to explore making this thing into a kit that would teach people about things like basic electronics, lasers, engineering, and fun. I’m hoping a visit to Maker Faire will give me the opportunity to talk to knowledgeable people and learn more about building it into an actual kit you could purchase and build yourself. That’s the plan!

So yeah, vote… vote now, not later. And then ask your friends to vote. Did you vote yet? Thanks! I appreciate it!

Vote Now!

Note: Voting is over! Thanks to everyone who voted for me… now we wait!

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It’s a Minne-Faire!

Minne-Faire

If you’re looking for me this coming weekend, don’t look in Wisconsin, because I’ll be in Minnesota at the Minneapolis Mini Maker Faire commonly known as Minne-Faire!

Since we’ve finally got Red Lotus working, we’ll bring that along for some Power Wheels fun. We’ll try to find some interesting projects from other Milwaukee Makerspace members to show off, and of course I’ve got a bunch or robots and lasers and weird things in my basement I can bring.

You should also look for Joshua of Brown Dog Gadgets, and while you’re at it, check out the Kickstarter campaign he’s running for a Folding USB Solar Cell. (I’m not sure, but it may be the most successful Milwaukee-area Kickstarter campaign yet.)

And hey, if you see me there, be sure to ask for a special prize.

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Banana Pong Time Lapse

Time Lapse

Time Lapse

I built this crazy Banana Pong thing with a MaKey MaKey for the Art Jamboree that Art Milwaukee does… here’s a time lapse video from the event…

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MaKey MaKey Banana Pong

My last MaKey MaKey project was the Apple Piano, which I created for Milwaukee Makerspace‘s participation in a previous Art Jamboree event that Art Milwaukee put on…

The Apple Piano was about sound, as that’s been something I’ve been toying with in Processing for some time. With another Art Jamboree on the horizon, I set my sights on a classic video game… and bananas.

As usual, when I need a nice piece of clip art I head to OpenClipArt.org. This time I found a sweet looking bunch of bananas. I only needed one banana so a quick edit in Inkscape got me what I needed.

Wait, but why did I need these banana images again? Because a game of pong is pretty boring… unless it’s Milwaukee Makerspace Banana Pong! Controlled by real bananas.

I found a nice one-player Pong sketch written in Processing, but it was your typical vertical paddle movement, and I needed a horizontal paddle movement. I ended up rewriting the game a bit to turn it all 90 degrees so the left/right of the banana controller would make more sense.

(Disclaimer: If you know anything about me, you know that I believe in crediting people for their work. We’ve got a problem this time. I went through so many Pong sketches that somehow I lost track of the one I started with. I’ve searched for more than an hour and could not find my starting codebase! If I do find it, I’ll update this post to point to it. On with the story!)

Banana Logo

Once I got the game working, I needed to add some fitting graphics, so what better than a take on the Milwaukee Makerspace logo with… bananas. (We’ve got a history of weird/wacky logos.)

One thing I learned was that bananas are not very tough! If you let people pound on your bananas for a while they get really mushy. I should have brought a lot more spares so I could swap them out more often.

Here’s a few photos from the event:

Banana Pong Player

Pong Player

Pong Player

Pong Player

Pong Player

Pong Player

Update: The code is available.

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Acetone Vapor Finishing

Safety First!

I decided to try my hand at this acetone vapor finishing method of making 3D printed parts smoother.

If you’ve seen 3D printed parts from a “fused filament modeling” printer, you know that there are tiny ridges in the prints. You can print at different layer heights for finer layers (and smaller ridges) but that increases your print time.

As you might be able to see in the image above, I placed a large glass jar on the print bed of my RepRap and cranked the heat up to 110° F. I had maybe 2mm of acetone in the jar. (2mm may not have been enough.) I waited until I could see the vapor cloud on the sides of the jar and then (with gloves on) placed the prints inside.

Here’s the results:

Skulls

Skulls

Skulls

You can see an untreated print on the left, and a treated print on the right. The treated print didn’t get quite enough melting to smooth everything out. (And yes, these were a challenge to photography!)

TARDIS

TARDIS

Another one… the TARDIS on the left shows the ridges while the right one is smoother. Note that the smoothing worked much better on the outer edges, and not as much on the inset parts of the print. It sure does make your parts shiny, though!

I’m sure I’ll keep experimenting with this technique, and hopefully start to improve it.

If you feel like seeing the original full-size photos, check the Skulls and TARDIS on Flickr.