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Two Square Feet of Art

M

Our story of the M begins when my friend Tiffany from While You Were Out Pet Sitting Service mentioned she was doing a charity event called Red, White & Black: 100 Square Feet of Art. If you remember the old “250 Square Feet of Art” event the Eisner used to hold (and I took part in) it’s like that. Artists create 12″x12″ boards, and they get auctioned off. So I volunteered.

I started with this letter M, in the typeface Umbra BT. I liked the 3D quality of it, and since I also love using the laser cutter at Milwaukee Makerspace, I had a plan.

M

The Photoshop mock-up was just an idea, so I re-created the letter M in Inkscape to prepare it to be laser cut. You’ll notice right now that the M in the first image and second image don’t match exactly. (I wish I had noticed at the time!)

I cut the shapes out of 1/8″ Baltic Birch plywood. My plan was to cut one board like this, and I’d the use the pieces to attach to another board, and the template piece as an assembly guide. Good idea, right? Right.

M

My next thought was, “Why waste full boards to get more pieces?” and I arranged the pieces to minimize waste. This works well for general assembly of things, but for art, maybe not so much. The pieces cut fine, but I did have to deal with kerfs, some scorching, the grain of the wood, etc. None of those things were huge deals, but they’re things to be aware of in the future.

M

At this point it was just a matter of assembly. A bit of glue, and bit of wood stain, what could go wrong?

M

There was a lot of time spent with the glue and the clamps. Well, most of the time was spent waiting for glue to dry. I obviously need another 20 spring clamps. Just for fun, this is about the time I got sick and had a work overload, so I started getting really concerned about completing this on time. (It gets worse.)

M

Here it is done! I call it “M1” by the way. An “M” for “Milwaukee” or “Mike” or “Mary” or whatever you like… or you could flip it over and make it a “W” for “Wisconsin”, etc.

I also had a nightmare time with the wood stain, though I managed to recover that by changing the piece. I learned everything I’d forgotten about staining wood in the 20 years since I’ve last done it.

M

Here’s a side view of M1 showing the dimensionality of the piece. The M is about 3/8″ thick.

M

But wait, what’s that? I still have that leftover piece that I used as an assembly template! Hmmm…

M

Yeah, here’s “M2” as it were. I figured that a perfectly nice piece of laser cut wood should not go to waste, so I came up with another idea. I reversed the color scheme of the stains on the two pieces of wood, attached the front piece to a back piece, and blammo! Another wonderful(?) piece of laser cut art.

M

I think I may actually like M2 better than M1, maybe just because of the process that created it, but hey, you be the judge, or the critic, or the bidder, or whatever. Cheers!

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Snowflakey

Tennis Man

Here’s a thing I’m calling (for lack of a better name) “Snowflakey”. The idea came from the Kimotion Arts store on Shapeways.

Kimotion Arts

Kimotion Arts has these neat 3D printed ornaments with an object arranged in a circle to make a snowflake-like thing. I dig it, so I decided to dig into it.

Bad Man

The first thing I did was fire up Inkscape and draw a really simple figure. It’s terrible, really, but I did it in less time than it took Inkscape to launch on Mac OS X. I created an SVG file, and then exported it as a DXF file, making sure I converted all the line segments into straight lines first. (Of course there were no curves in this drawing, but if there were, I’d convert them!)

Bad Man Flake

Once I had my DXF file, it was easy to pull that into OpenSCAD, and place six of them in a circle with the following code.


objheight = 4;
objcenterspacing = 20;
objrotate = -70;

for (i = [0:5]) {
  rotate(i*360/6, [0,0,1])
    translate([0, objcenterspacing, 0])
      rotate([0, 0, objrotate]) 
        linear_extrude(height = objheight, center = true) 
          import( "figure.dxf" );
}

The code is not the greatest… in fact there is probably much room for improvement, but it’s the first thing I got working, so I ran with it. My idea for the 3 variables at the top were so you could easily tweak them for different art. Sadly, as you change objcenterspacing and objrotate, they affect each other, so it’s a lot of back and forth between those two values. I also could not find a way to assign a filename to a variable, so your DXF will need to be named “figure.dxf” or you’ll need to edit the import line.

Tennis Man

Since my drawing was so terrible I wanted to try something else, so what better than Land recreation symbols 27, better known as “Tennis Man” by most people.

Tennis Man Flake

A few quick edits and I had this nice Tennis Man Snowflake for that special ball smasher on your list… (Notice the canvas size of 25mm wide by 35mm high. You can do what you want, but the OpenSCAD code will be expecting something close to that. Otherwise you’ll just have to tweak the numbers even more.)

Blobby Man Flake

I decided to try once again to draw something. This one took a little longer than a minute, but turned out just as terrible as the first one I did. Still, maybe you like “Blobby Man” as a snowflake.

Ant Flake

How about ants? This one is interesting. Maybe spiders would have been a better choice. (And yes, I know I could probably do the entire “6 items rotated” thing right in Inkscape, but that wasn’t the goal here.)

Horse Flake

What about the old nag? No, I’m not taking about your mother-in-law (kidding!) but this fine old horse from OpenClipArt.org, where I get many of the SVG files I use. Export this as an STL file and you’re ready to print it on your RepRap!

If you’ve got an improvement to this OpenSCAD code, by all means, let me know. I’m still very much in the learning phase with OpenSCAD, so I do these things to learn, and because of that I’m open to any suggestions.

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Laser-Etching Tweaks

Laser-etched name badges

I made these laser-etched badges at Milwaukee Makerspace recently, and if you’ve see our logo before, you may have noticed it has some thin lines in it. Thin lines are great, except when they aren’t, and when etching with the laser, they might not be.

the photo above shows my three attempts, with the first being on the bottom, and the third being on the top. You can see the difference by comparing the helmet in each badge.

Logos

The image above shows our standard helmet logo on the left, and you can see the line widths, which work fine for graphics we use online, or printed materials like flyers and stickers, but for laser etching, the lines are just too thin. The middle logo shows how I tried to fatten up the lines to allow the etching around them to leave a bit more material (in this case 3mm Baltic Birch plywood.) Match the middle logo up with the middle badge in the photo above… it’s better, but still not great.

The logo on the right side shows the lines around the eyes and nose thickened up even more, and this is what worked the best, as seen in the final (top) badge in the top photo. (And yes, these were done using the 60 watt Laser Cutter at Milwaukee Makerspace.)

Example #1

Here’s a poor macro shot of the second attempt, where you can see that not enough material was left for the eyes and nose, even after the first attempt at fattening up the lines. (I didn’t bother to photograph the first attempt, as I sized up the logo on this, the second attempt, and then maintained the new larger size on the third attempt as well.)

Example #2

Here’s a poor macro shot of the third attempt, the one with the fattest lines. This one worked out quite well, especially for the eyes and nose. The detail in the solder iron were completely lost, which is fine, as it’s extremely fine detail, and we’re etching it at a small size.

I’m pretty happy with the final result, and I’ll keep in mind that thin lines may need to be fattened up in the future. (There’s always the issue of altering someone’s logo or artwork, but in cases like this it’s necessary if you want good results.) I don’t think there’s any hard and fast rules on this, as things will vary depending on size of artwork, material being etch, and other variables, but it’s a nice reminder that tweaking is needed for this type of thing to work well.

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Laser Kaleidoscope

Laser Kaleidoscope

We managed to get Milwaukee Makerspace invited to another gallery night, and this time we’re taking part in Bay View Gallery Night at Alterra, so I figured I needed a new project. And hey, what’s better than a deadline to get a project done? (It’s like college all over again… in a good way!)

Interociter

When I was at Maker Faire Detroit back in July I saw this laser spinner thingy called “The Interociter” and decided I had to have one. And by “have one” I mean “make one”… so I did.

(There’s some debate over whether it should be called a “Laser Kaleidoscope” or “Laser Spirograph” or “Laser Spinner Thingy” and while I do like “Laser Spinner Thingy” I also get sick of people thinking all my projects are Spirograph-inspired, so I went with Laser Kaleidoscope. Deal with it.)

Laser Kaleidoscope

Laser Kaleidoscope

So where were we? Oh yes, the project! It’s really simple: a laser is pointed at a mirror, and that reflects the laser onto another mirror, and that one reflects it onto another mirror, and then it shows up on the wall. You can make the motors spin by turning them on with a pushbutton, and then adjust the speed by turning the knobs. There are 3 motors (an earlier prototype had 4) and by setting them all to different speeds, you can get some crazy patterns going.

So how does it work? The laser hits the first spinning mirror, and creates what appears to be a circle. It’s really a single dot, but it’s spinning around so fast it looks like a circle. Add a second (and third) mirror, and since they all wobble just a little bit, you get much more than a simple circle.

Here’s a shopping list:

I say “shopping list” because those are the parts I (mostly) bought… Of these parts I’ll note that with the laser I leaned towards the “safe” side, but it can be difficult to see in well-lit rooms, so I may upgrade to this one at some point. The round craft mirrors came in a variety pack with different sizes. I may experiment with larger mirrors in the future.

Laser Kaleidoscope

Laser Kaleidoscope

There are a bunch more parts involved, one being the piece of wood everything is attached to, and the other parts were all designed and 3D printed by me. (OK, I had a little help with the knobs.)

The printed parts are:

  • (1) Laser mount
  • (3) Motor mounts
  • (3) Mirror mounts
  • (3) Knobs

(I also considered printing some small U-shaped things to hold the wires in place, but haven’t bothered with that yet.)

And yeah, this is why I have a 3D printer. The ability to digitally design something, rapidly create it, tweak it a bit and print a new one… that’s what I love.

My original plan was to make up a nice laser-cut case for this (I thought that would be appropriate) but with the lasers down for repair, I didn’t get that done in time. That’s actually fine, as I’ll probably end up redesigning things a bit before I’m totally done with it. So far though, I’m happy with the progress.

The video was quick & dirty, and really doesn’t do it justice, which is why you’ll need to come see it in person I guess. I figured I couldn’t write this post without including some sort of proof that it actually works. :)

Lasers! They’re awesome!

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Instructables + Laser = ????

VOTE!

So here’s the deal friends… Ben Nelson, fellow maker, DIY enthusiast, and Milwaukee Makerspace member, has won his fair share of contests over at Instructables, and it’s prompted me to give it a try as well, so I present to you my first Instructable: Creating Random Art for Puzzles.

And I’ll be totally honest, the main reason for me publishing it was to enter this contest to win a laser cutter from Hurricane Lasers. (I have no shame in telling you that!)

Ever since the Makerspace got a laser cutter, I’ve fallen in love, and it’s become my favorite tool, possibly even surpassing the RepRap. (Shhh, don’t tell the RepRaster 5000 that!) You’ve probably seen a few of my posts about things I’ve laser cut. Of course lately the laser cutter seem to break down every other week, so getting time to go to the space when it’s working is tough. Luckily, my friends at Lovesick Robot Studios helped me out with this project.

Laser-cut puzzle coasters

When I started on this project, I wasn’t even sure where it would go, but I wanted to explore the concept of introducing random elements into my art and see where it would take me. Well… this is the first stop: puzzles created with random art.

Puzzle: Solved!

Of course if you know me, you know I also love making coasters… so I made puzzle coasters with random art in addition to a normal puzzle. (The “normal” puzzle was made with a printer, some board, and an X-ACTO knife. All the details are in the Instructable.)

Puzzle? Coasters? Both!

So here’s the deal friends… I’d really appreciate if you vote for me in the contest, because if I win, I’ll get my own laser cutter… but rest assured, I won’t just keep it to myself. If you need something etched or cut, well, I may be able to help you out. I mean, if I win this contest. So yeah, I’d appreciate your vote.

So go to the page to vote. See the image at the top of this post which shows where the “VOTE” button is.) Also, since I took my sweet time, we’ve only got two days…. Voting ends the 20th, so don’t put it off… vote now! Don’t see the vote button? Make sure you log in. Don’t have an account? Create one!

Thanks!

Update: As of 2012-09-28 I have not been chosen as a finalist. Oh well.