Bay View Gallery Night

Bay View Gallery Night

Summer is just around the corner, and that means it’s time for the first Bay View Gallery Night of the year, and now that Milwaukee Makerspace is located in the heart of Bay View, we just had to get in on the action, so we’re inviting you to join us in what we sometimes refer to as “16,000 sq feet of Art”.

And hey, it’s not all art, as we do a zillion things at Milwaukee Makerspace, as long as it involves being creative and making things, we do it. We’ll have plenty to see and experience, including our group show titled: Awesome Things From the Makerspace.

If that’s not enough to convince you, we’ll also be hosting a show from our friends at the Bay View Arts Guild, so yeah, even more art!

It’s all happening Friday, May 31st, 2013 from 5pm to 10pm. And as always, we’ll have some sort of magical surprise to knock your socks off!

(Note: If you’re not wearing socks, we can’t be responsible for what might happen to your feet. You’ve been warned!)

Preschool playset remodel.

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My youngest son and nephews pre-school is tiny. Literally it’s two classrooms, but it’s a great environment for them both which includes identical playsets in each class.

Hundreds if not thousands of kids have played on them. Being built in the 80’s when building codes weren’t as strict, they were no longer compliant.

While the wood is still good, had been sanded well and sealed well there were a few problems.  The banister rails been deemed to be too short and the handrails needed to have another one put on the bottom under the other two on either side.

The choices were to surround the play sets with a 6 foot giant landing mat around the sides, or to raise the banister rails and add another handrail. A landing pad would have taken up far too much room in the class so I volunteered to rebuild some of the rails so they met code.

Because construction was going to take a little while (actually it turned out to be a long while, started before Christmas it was finished in early April), the rail cutting / routing / sanding was going to take place off site and then assembled onsite during a weekend afternoon

First thing was to take lots of pictures, and lots of measurements.

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I did up some high-level sketches just showing how the rails would be raised.

 

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The next step was to cut up a whole pile of 2”x2” rails to the desired height with a 45 angel cut on the ends to match what was originally there. The rails also had been rounded off with a quarter round router bit, so I did that as well.

 

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I knew there was no way I could match the old finish that was on the original wood so I decided to go with something a bit brighter and engaging for the kids mixing blue, red, green and white paints that I had my son pick out. Then it was just a matter of cutting and routing. Here are some shots of the wood after cutting but being painted. The coats ranged from 4-5 to get a deep coverage and then 3 coats of a clear poly to brighten it up.

 

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By some miracle the measurements all turned out perfect, which is nearly a first for me. We still have the bottom hand rail to make but that will be easy to do.

Staying Stocked Up

The idea was simple: make something to help keep track of our supplies so we know when we’re running low on the essentials.  After weeks of kicking the idea around and various rough doodles, this project finally took shape.  Two days after the first cut on the laser cutter, it was complete.


Made from multiple layers of acrylic, cardboard, and wood, the “Milwaukee Makerspace Consumables Super Analog Status Board” is a clipboard-sized device with nine sliders installed in enclosed slots.  Sliding the tabs right displays more green to indicate “full” or “lots” and sliding left reveals the red acrylic below to indicate “empty” or “low.”  The user can carry the board around the Space with them as they check on supplies and when done, a large hole centered at the top allows the board to be hung up and displayed on a wall.

The hardware holding the whole thing together can be loosened and the layers disassembled.  The cardboard insert that the text resides on can be swapped out should we decide to change the list of items we want to keep tabs on.  The supplies being tracked currently include:

  • Toilet Paper
  • Paper Towels
  • Hand Soap
  • Welding Gases
  • Welding Wire
  • Propane
  • Soda
  • Duct Tape
  • Painter’s Tape

A digital version may or may not be planned for future release.

We’re hosting MKE UX (Milwaukee User Experience) *CANCELLED*

Update: Due to some unforeseen events, tonight MKEUX is cancelled. It will be rescheduled for a later date at our space. Thanks!

Mike Massie will be presenting on an intro to Ambient Intelligence and how sensors can give the user super powers.

“As shrinking technology allows us to cheaply put hardware eyes, ears and touch sensors on everyday things, the data now readily available can offer a magnitude of information without the user even lifting a finger. Some are calling 2013 the “Year of the sensor”, and it giving passage to the Internet of Things and Big Data; aside from buzz terms we’ll talk about how these tools will offer the ability for more interactions to get out of the way.”

When: 6:30pm – 8:30pm, Monday, May 20th, 2013
Participants: Mike Massie (Host)
Info: http://mkeux.com/
RSVP: https://www.facebook.com/events/454981001262166/

Water Cooler Conversion

cooler

In addition to the obligatory refrigerator full of soda (or sometimes empty of soda, depending on whether anyone’s filled it recently), we also have a water cooler that takes the big 5gal water bottles. They also sell coolers that can be plumbed into a water line, and a while back I discovered that they’re actually bottle-type coolers that come with a conversion kit. The kit consists of a float switch and a solenoid valve, and a mounting bracket that takes the place of the bottle holder.

There isn’t a conversion kit for the cooler we have, but it looked simple enough, so I made one from scratch. I don’t like float switches, so I used two other methods of sensing the water level (I wanted a backup sensor because certain failure modes could result in an unlimited amount of water on the floor, which would be a Bad Thing). Instead of trying to find the “best” way to do it, I used the components I was interested in learning about.

 

sensors

For more details, see the wiki page:

http://wiki.milwaukeemakerspace.org/projects/watercooler

 

MegaMax 3D printer lives!

After a year’s work designing, building, scrapping, redesigning, building, and working through software and firmware issues, the MegaMax 3D printer is now functional.   It has some common 3D printing issues like printed objects peeling up off the glass printbed.   Tweaked settings in Slic3r, ABS “juice”, and Aquanet hairspray have all been tested with moderate success in attempts to improve adhesion to the printbed.  Finally, have_blue gave me  a block of foam out of the Stratasys printer to try out and it seems to work better than the other methods and doesn’t require heating the bed!  Further experiments to be conducted post-haste.

More info on this project can be found here: http://wiki.milwaukeemakerspace.org/projects/megamax_3d_printer

MegaMax printing on foam from Stratasys printer.

MegaMax printing on foam from Stratasys printer.

The Milwaukee Makerspace Makership

The Milwaukee Makerspace Makership Program

We’re doing it again! For a second year in a row, we want to provide a local maker with a chance to become a member this summer, and do something awesome.

Milwaukee Makerspace is proud to be a part of Milwaukee and to provide a shared workspace where people can explore their passions in making things, whether it be art, technology, electronics, alternative energy, or rapid prototyping and fabrication. Our members are eager to share their skills and equipment with others, and we recognize that we learn better when we learn together, so we’re introducing a “makership” program, which will allow a local maker to become a full member though a sponsorship from the group.

If you’re interested in joining us and gaining access to our space, our tools and our community, come up with a killer idea and apply today!

Find out more at: http://milwaukeemakerspace.org/makership

Raspberry Pi Project Update

I’ve made some progress on the Raspberry Pi based traveling mascot for the makerspace. I’ve figured out how to connect the GPS unit, and configure the software on the Pi to read the data. The makerspace’s metal roof well insulates the inside of the building from the GPS frequencies, so the device doesn’t receive location data in the electronics lab.  The wooden roof of my home is much more transparent to these frequencies, so I’ve tested the GPS at home. I’ve got the C libraries loaded, and started a program to check and record the current location of the mascot.

Unfortunately I’ve run into a few setbacks. For some reason it keeps corrupting its file system, and failing to boot. A few times it’s happened has been when I made a configuration change and then rebooted. So I blamed myself. But today the Pi wouldn’t boot. The last time I used it I properly shut it down before tucking it in its box and putting it away. I had the Pi configured to register itself on the network so I could work with it remotely. It wouldn’t come online. So I grabbed the monitor and keyboard to figure out what’s going on. The monitor showed the Pi would start booting, but pause with a “PANIC: No init found.” message. A bit of web searching found that other people have had similar problems and fixed it by using different keyboards and different SD cards. Trying a boot without the keyboard and mouse plugged in gave the same panic message. So I think I need to try another SD card.

My son has a Raspberry Pi of his own, and a few SD cards he’s had success with. He has agreed to let the mascot project borrow one of his cards to figure out if this card is the problem. I’ll post about my results after I try with the different card.

Once I figure out the file system corruption problems, I can continue writing the C code. After that I’ll work on the other parts of the project. These parts include the website, battery pack, camera, and body. I think those denim monsters some members will be making in an upcoming sewing class could make a great form for the mascot. Would any of those members be interested in making a custom one for the mascot? Would any members be interested in helping out with any other part? Would any members just like to play with the Raspberry Pi? If you want to help, participate, or just check out the project talk to me when I’m at the space, or post a message on the mailing list.

Knock Knock

We have a pretty sweet access control system at the space. Former President Royce Pipkins put it together for us and it controls all the exterior doors at the space. One problem we have with it right now is that we have to log into a linux machine and tail the log to see interesting info about how many makers are badging in and when.

Well, we used to have that problem, anyway.

I spent some time today with the lovely (if a bit limited) Cosm api. You may know Cosm by its former name, Pachube. I wrote a simple python script to parse out interesting, anonymous data from our access server logs and send it up to Cosm as a new feed, called Milwaukee Makerspace Access Control System with four data streams:

  • Number of Unique Makers Accessing the space in a day
  • Number of Unique Makers Accessing the space in an hour
  • Total number of badge-ins per day
  • Number of Access Denied messages per day

Cosm made it easy to graph the data and to send up new data points, but is limited to a gauge-style timeseries.  I can’t submit raw data events and use Cosm to aggregate them up by date or hour, so i had to do that in my local python code.  Their REST API is very simple, clean and well documented, though, which makes up for the limitations a bit.  They provide a graph-builder, but i didn’t like the way the graphs looked so i pulled the JSON data in and used the Google Chart Tools to produce some pretty graphs like this one:

Access Control System Stats

Screenshot of the Access Control System Stats.

The stats are updated from our access control system every hour and are publicly available at http://mkemakerspace.appspot.com/access-control-stats/

We’re looking at doing some more fun stuff with the logs from the access control system at the space, like displaying the names of the members who have most recently badged in, making sounds when someone badges in or a key is denied.  I’m sure whatever we come up with will be noisy and large.