PCB with Lasered Paint Resist and Fast Sponge Etching

TomG shows how he etches PCB boards using paint, a 25W laser cutter, Muratic Acid, 30% H2O2 and a sponge. Much frothing ensues.

The technique is a neat one, given the presence of a laser cutter, because it can take you from copper clad to etched board in a pretty quick amount of time.

One note, the Muratic Acid is actually from a pool supply store, not Home Depot. It is, of course, dangerous. Wear safety goggles, use gloves, use in a well ventilated area. (The acid smells like a punch to the nose, don’t inhale it)

Kenilworth Open Studios

Frankie Flood's Workspace

On Saturday April, 21st, 2012 a few of our members visited the UWM Kenilworth Open Studios, and got a look at some of the work produced by the Peck School of the Arts faculty and students.

My only complaint is that the event only lasted 3 hours! :)

Seriously, we could have spent twice that long seeing the work, the workspaces, the tools, and the people.

Printmaking

We had a great tie talking to Frankie Flood about his work, RepRaps, tools, the Makerspace, and just making in general. Check out his handverker blog for a great behind the scenes look at some of the things he’s working on.

Cake!

There were plenty of other things of interest to our members, including printmaking, photography, screen printing, music, film, CNC machines and 3D printers… and a personal favorite… Cake!

If you missed it, put it on the calendar for 2013. They only open up like this once a year, and it’s definitely worth seeing.

And if you don’t feel like waiting that long, there’s some great Summer Workshops in Jewelry & Metalsmithing that at least a few of our members may be taking part in.

Space Apps Challenge

International Space Apps Challenge

If you don’t have enough to do this weekend (or you really love space and consider yourself a citizen scientist) you might want to join the International Space Apps Challenge.

On Saturday, April 21st, and Sunday, April 22nd, 2012 hacker and makers around the world will be joining together to work on software, hardware, data visualizations, and other projects to solve current challenges relevant to both space exploration and social need. Even the folks on the International Space Station will be taking part!

Learn more about it here, browse the list of challenges, and if you want to get involved, register!

Maker Faire Detroit is coming up!

Maker Faire Detroit 2012
Maker Faire Detroit 2012 is rapidly approaching. If you haven’t been to one, you need to go. Maker Faires are amazing gatherings of some of the most interesting and creative makers around. To-scale fire breathing dragon sculptures, colossal sized Mouse Trap games, micro jet engines, super fast Power Wheels racers, ferro-fluids, and so, so much more. And then of course there is the Henry Ford Museum with it amazing collection of automotive technology.

On April 17th, 2012 at 7PM we’ll have Suzanne Fischer, Associate Curator of Technology at the Henry Ford Museum here at the space to talk to us about the Maker Faire Detroit. Come on by and learn more about it! As always, Tuesday evenings are free and open to the public!

Toddler Swing from a 5-Gallon Bucket!

So how exactly DO you make an 18-month-old girl happy? Well, it doesn’t take any money or a trip to Wal-Mart. In fact, some rope and an old 5-gallon bucket are more than enough for a fun springtime afternoon!

Last weekend, my wife, young daughter and I went over to my parent’s house. My Dad had recently been over to the store to get chicken wire for the next chicken coop he’s working on, and looked at some playground equipment while there. (They have EVERYTHING at the farm store!) He mentioned how the toddler swing-set they had seemed “too-safe”. That is that it was all blow-molded plastic, had straps and safety belts in all directions, and looked like it would take longer to get the child in and out of the swing then she would actually spend playing in it!

It seemed like it would be simpler just to build something ourselves. We had a 5-gallon bucket and some rope, along with a drill and a jig-saw. Thus, the 5-GALLON BUCKET SWING was born!

Construction was pretty simple. We just pulled off the bucket handle, and then cut two “mouse-holes” for the legs in the front of the bucket. Matching cut-outs were made in the BOTTOM of the bucket, because toddlers legs are so short. We cut down the total height of the bucket, and made it swoop very low in front, high on the two sides, low again, and then high for a back-rest. Four holes were drilled (3/4″) to pass the rope through. Rope goes down from the top, loops through the holes, then back up and out the other side. That way, we only needed one piece of rope, instead of two, and it makes it a little easier to adjust for height.

We didn’t even have a good tree to hang the swing on, but there were two great pines (which provide shade.) We ran a length of sturdy steel pipe between the trees as a cross-member to hang the swing from. Once tied in place, the swing was ready to go.

She swung on it for nearly an hour and a half – this from a little girl who usually spends no more than ten minutes on the swing at the public park. Unfortunately, I didn’t have my camera with me, nor could I really document building the swing, as we were making it up as we went. However, my brother had his cell-phone camera with and grabbed a pair of photos of the first use of the swing.

Being made from plastic, the bucket swing is weather resistant and should last a long time. It wasn’t made in China. It didn’t have any packaging, and it was plenty of fun to make and use. Not bad for a weekend afternoon.

But what’s that? YOU want to make your own 5-gallon bucket swing? Sounds great! Go for it. Here’s some general directions for you.

First, get a bucket. You probably already have one around, but if not, you can buy one at the home improvement store. Better yet, just ask for one at your favorite local restaurant. Pickles and all sorts of industrial-sized food goods often come in 5-gallon buckets.

Next, remove the handle.

You don’t HAVE to take it off, but it will just get in your way otherwise while you are working on the project. Look where the handle connects to the bucket and you will be able to see which way you have to bend the handle to be able to just pull it out by hand.

Next step is to cut a pair of “mouse-holes” for the child’s legs. In these photos, I’m using a black marker to show where I’ll being cutting. When you do this, either cut around the OUTSIDE of your black markings, so there’s no marks done on your finished swing, or just eye-ball it. The leg holes are cut in both the front AND the bottom of the bucket, so the child’s thighs sit on the bottom of the bucket, but from the knee on down hangs straight downward through the bucket.

You can cut the bucket with almost anything, a handsaw, a Dremel tool, a jigsaw, or reciprocating saw. I think a jigsaw is the easiest and most straight-forward for this.

Try to make all the cuts on the project nice swooping curves. Once all the cuts are made, you can sand the edges as well.

Next thing to do is mark the lines for the main cut. Essentially, you are cutting really low across the front, above the leg holes, and then high on either side, near where the bucket handle originally connect, swoop low again for where the kid’s armpits are going to be, and high on the back for a back-rest. That may sound complicated, but a couple pictures are worth a few thousand words.

You’ll also need to drill four holes. Two are the main “hanging holes” which will be located directly below the original bailing handle connection points. The other two are roughly below where the child’s armpits will be, and allow for the rope to go through to the back of the swing, around the outside of the bucket. That way, the rope acts as part of the back-rest, and prevents backward tipping, but is not between the child and the back-rest. You probably want to drill the holes BEFORE cutting the bucket in half, as it will have more strength and is easier to handle in its original bucket form.

Once those holes are drilled, cut that swooping line to make the bucket into two halves.

Frankly, I’m not sure what to do with the top half of the bucket that got cut off. If you have a good idea of how to make use of this “waste”, please let me know!

By now, the bottom half of the bucket should be starting to look like something you might see at the park.

Next, get yourself some rope that’s at least twice as long from your favorite tree-branch to the ground. Thread one end of the rope DOWN through the outside of one of the ears, out through the next hole, around the outside of the back-rest, back IN the next hole, the up and out the other ear. Again, it makes more sense if you look at the photos.

Also, please note that on this particular bucket swing, the back-rest is a little low. It should really come up nearly as tall as the side ears. When we worked on the first one at my Dad’s the little girl was right there. She cooperated well in that she was happy to sit in the bucket while we marked the positions and distances of the various parts of the swing. (The little girl was not around while I was working on this particular bucket. I highly suggest using your toddler as a template for your project!)

Next, you just have to hang it. Tie one end of the rope to the tree branch. Make sure the swing is facing the direction you would like it to face. Slide the swing on the rope until it is at the height you would like it to be at. That’s usually between the height of an adult’s waist and knee – a good pushing height once the swing is drawn back.

Most likely, you will want to use an outdoor-rated, UV-resistant, artificial fiber rope. Otherwise, you could also chain or cable, but rope is simple, easy to work with, and doesn’t pinch little fingers.

The proof is in the pudding. After checking that the swing is tied securely, at the right height and level, put your little darling in there and give him or her a push!

If all has gone well, you have a smiling child swinging away on your aren’t-you-proud-you-made-it-yourself swing-set!

Once the tot is in there, you might want to confirm that the leg holes are the right size, and that there’s no chafing or rubbing. In the photo above, it looks like the left leg hole (her right leg) could be a little bigger.

If you, like me, enjoy irony, you might want to design your bucket so that it keeps the “THIS IS NOT A TOY” warning on the side.

Here’s a couple of views of the back. In these photos her shirt is covering part of the back-rest, but it’s still a little low. In the next bucket swing, I am going to make sure the back-rest is higher, nearly as tall as the side ears. Make sure that there are still the downward swoops for the armpit area. This allows the child to have comfortable arm position, NOT rubbing on the bucket, and still easily reaching up to grab the rope.

That’s about it! It’s a simple project, inexpensive, fun to make, and fun for the kids to use!

Here’s a video quickly showing all the steps as well!

Do you have any ideas for improving this design? Have you made one? Let me know! Leave a comment or post a photo!

One last treat for you – I created a one-page PDF file for you that has step-by-step directions for how to build the swing. Click the link , then print out the file and take it to your workshop with you!

Lastly, HAVE FUN!

Hack for Health

BuildHealth Logo

If you are into the Hacking side of the Makerspace/Hackerspace world, consider checking out the Build Health Hackathon this weekend. Our pals at Bucketworks are hosting the event at their space April 14-15th.

For 28 hours, teams of hackers and designers will use public government health data sets to build innovative health care related applications. Winning teams get cash prizes and the chance to present their work to the US Department of Health and Human Services at the Health Data Initiative Forum III – The Health Datapalooza event in Washington, DC.

More information is available at The Build Health website.

Kudos from Kompost Kids

Kompost Kids

We got a visit from Kompost Kids last week, and we assisted in laser cutting a stencil for them, because we love helping people make things!

So what does Kompost Kids do? Here’s what they have to say:

Our mission is to educate the public, individuals, businesses and institutions about the benefits of compost and to reclaim organic materials from landfills to create soil for community-based agriculture projects.

Nice! (If there were ever a group of people who are into re-use, it would definitely include a lot of the Makerspace members.)

If you’re one of those Facebook users, you could always go “Like” them over there.

Gallery Night – Spring 2012

Gallery Night - Spring 2012

Our friends over at Bucketworks serve as the home to Artworks for Milwaukee, and since they’re a stop for Spring Gallery Night on Friday, April 20th, 2012, they figured the more the merrier, and invited us to take over part of Bucketworks and show the art appreciating crowds the sort of stuff we do… which is often a cross between art, technology, engineering, software development, and… well, we just call it making.

So join us April 20th from 5pm to 9pm and see what crazy things we come up with this time. :)

Signs of the Makerspace

If you’ve only been a part of Milwaukee Makerspace through the web site, wiki, mailing list, or some other online thingamabob we have, and you’ve never actually been to the space, you’re missing out on something—the signs!

Besides all the purely informational signs, we’ve got some humorous signs, and a few signs that probably fit in both categories.

So here my friends, is a brief look at some of the signs of the Makerspace.

Wipe your feet!
We have this special stuff at the space we call “Makerspace Filth” that, if unchecked, tries to infect everything. This is how we fight this menace.

Somewhat Safe
We have numerous classifications for our projects… From “Somewhat Safe” to… well, maybe I shouldn’t talk about the other end of the scale!

It if looks unsafe... it probably is.
Speaing of safe, here’s a good reminder. I actually nicked this one from the guys at Robots and Dinosaurs.

Test Equipment
This makes sense right? Things you should not use the Test Equipment for include: hammer, boat anchor, blunt object, doorstop, spider flattener.

Stay Out!
Occasionally one of your projects needs some privacy. (Especially if it has an escape hatch built into it.)

Milwaukee Robotics Club
Yes, the Milwaukee Robotics Club meets here. Or at least we used to. (It’s been a while since we’ve had a meeting actually…)

Eye protection must be warn
Protect things like your eyes. And your signs. You might notice that even this sign about protecting your eyes is protected by a piece of plastic. Similar to how you might protect your eyes. #meta

Bathrooms
Yes, we do have bathrooms! (Note: some of that “Makerspace Filth” we talked about may be located in the bathrooms.)

Use the wedge!
By the way… if you use the bathrooms, you might also want to use the wedge, so you don’t get locked out.

CCTV in operation
We also have some cameras around the place keeping an eye on everything. (Note: there are not cameras in the bathrooms.)

Caution - Always Add Acid to Water
A gentle reminder to always add acid to water. I’m going to assume the other way around is probably a bad idea.

Laser Radiation
This one is on the laser cutter. Yes, we have a laser cutter. And yes, you can etch a mirror in the laser cutter without destroying yourself or the laser cutter.

Potential for Toxic Fumes - Keep Clear!
Speaking of the laser cutter, we do vent the fumes, but we figured it was still a good idea to put this one along the path of the vent pipe.

Look directly at implosion
I’m not sure we’ve ever had an implosion at the space, but if we do, we know the proper procedure for such an event.

Load: 3 lbs per sq foot
Hmmm, looks like the maximum load had dropped a bit since the initial construction of the building. Those old floors ain’t what they used to be!

Hack Rack
The Hack Rack sign has been upgraded since last year, and now includes the bit about taking something if you leave something—which is good—otherwise the Hack Rack would take over the entire space at some point.

For Makerspace from Ava
I’m not even sure this one is a sign… I think it’s actually artwork contributed by a member’s daughter. Either way, it’s a great interpreation of our logo.

I hope you enjoyed the look at some of our signs! Let us know if you have any suggestions for future signs at the space!

Column Progress Update III

Well, I’m still working on them, but with what I’ve learned from the first two columns, it appears that the second two will dwarf the stylized look of the first ones.  In essence, it is clear that I learned a lot about column-making and I will make far neater columns in the future.

A set of 4 columns, two of which need the capitals created yet.The second two still need feet, and I’ve only mudded just the one, but I’ve designed the capitals for those two outer columns and today, when I get down to the ‘Space, I’m going to cut and assemble them.  The hardest part will be judging where to cut off the cardboard tubes so that all of the columns will be the same height, after the capitals are added.

I’m still undecided on what I’m going to use to bridge the gap across the tops….