The Turndrawble

The Turndrawble

The Turndrawble is a drawing machine I designed, based loosely on an old vinyl turntable, but instead of playing records, it creates drawings.

The construction was done using stacked layers of wood and acrylic. I wanted to avoid using the typical laser-cut “box” enclosure I usually use. I’m pretty happy with how it turned out.

The Turndrawble

The Turndrawble is meant to be used to create 12″ circular drawings. One of the knobs controls the platter speed, and the other sweeps the arm in and out. Since it’s a new drawing device, it hasn’t been mastered yet, but we’re working on it!

Here’s a short video showing the turndrawble being operated. I’ll probably have it at some future art events for people to try out and see what they can create with it.

There’s a bunch more info about this thing on the Turndrawble project page on my web site.

QWERTY (and nothing else)

QWERTY Keyboard

I built a QWERTY keyboard that types the letters Q, W, E, R, T and Y, and nothing else. No space, no return, no escape.

It’s a fully-functional USB device, you know, as long as you just want to type words that can be composed with Q, W, E, R, T and Y. (WET, WRY, YET, TRY, there’s a bunch of them!)

I wrote plenty more about this project on my blog, and if you want to read about the history of the QWERTY layout, and its connection to Milwaukee, and why the way we interact with technology is interesting and sometime ridiculous, well… I got that too.

Happy Shiny Bolts

Bolts

When you buy a bolt, it doesn’t typically have a nice flat head on it. It’s got a bunch of markings, and usually some sort of part number, or something. Here’s a bolt I found on eBay. Look at all those numbers and letters!

Bolt Close-up

Here’s a close-up I shot of a bolt head. What does it all mean? Well, Brant told me that the manufacturers add these markings to help prevent counterfeit parts. He even mentioned that years ago a building was built with some knock-off fasteners and it collapsed causing terrible damage. Terrible!

Well, I brought a bolt to the makerspace because I wanted it to have a nice smooth and shiny top. Bill**2 was kind enough to show me the new metal buffing area, which has a nice belt sander (which we used to remove the lettering) and 6 (yes, six!) buffing wheels of various grit. I used all six to give my bolt a nice clean shine.

Shiny Bolt

Here’s my bolt after removing the letters and buffing it up. I probably could have done a bit more, but this was still a hundred times better than before I started. And yes, it is hooked up to an AT42QT1010 Capacitive Touch Breakout Board and a Teensy.

Square(ish) Pegs

Laser-Cut Pegs

Often laser cut parts gt attached at 90 degree angles, using finger joints, or screws and t-slots, but there may be times when you want to stack pieces of wood and have them aligned…

Pegs might be the answer!

Here’s a few photos of the pegs I’ve been experimenting with. For these pieces I don’t have a lot of room to have multiple pegs at opposing angles, but I can see where that might be useful. For these pieces the peg is really just for assembly alignment when gluing it all together.

Laser-Cut Pegs

Sense 3D Scanner

STL Tissue Box

Let’s say you want to 3D print a scale model of that box of tissues on your coffee table because you want to commemorate being sick last week. You can do that. We can do that. Yes, Milwaukee Makerspace can now scan 3D objects, thanks to our friends at 3D Systems who sent us this lovely Sense 3D Scanner.

Scan Selection

When you launch the software, it will ask if you want to scan a person, or an object. (I would have scanned a person for the first test, but everyone was sleeping at 6am.)

Scan Selection

If you choose object, it will then ask you what size the object is. I chose ‘Small Object’ for the tissue box.

Scanning

When the scanner sees the object it will highlight it. You can then click the start button to start scanning. I ended up holding the scanner and my laptop in my hands and walking around the table looking at the screen, trying to keep the object centered.

Scanning

Here’s our object being scanned. It takes a little bit of practice to walk around with the scanner and laptop. Whenever I’ve seen people get scanned (their heads anyway) they usually sit in a swivel chair and spin while the scanner stays stationary. We may want to try building a turn-table for small objects.

Lost Tracking

If the tracking gets lost, you need to try to realign things… or start over. It doesn’t take very long to do a scan, so starting over isn’t the worst thing in the world.

The Tissue Box Scanned!

Here’s our scan! We now have a 3D model of a tissue box. Exciting!

Cleaning it up

You may need to do a bit of editing. The most important thing is to ‘solidify’ the model. It needs to be ‘water-tight’ or manifold before you can 3D print it. Solidify fills in the holes.

Cleaning it up

You can also erase things. The erase tools lets you draw around things with a red line, which it will then delete.

Enhancing it

There are a few enhancements you can perform if needed… otherwise, it’s time to save it!

Saving it

The files are saved as ‘Polygon File Format’, with a ‘.ply’ extension. Typically I use STL files, so we’ll convert to that next.

MeshLab

MeshLab can easily import a PLY file and export it as an STL.

Resizing

I like to use Pleasant 3D to view and resize STL models. (It’s Mac OS X only, but there are options for other operating systems.)

Resizing

After making our model a bit more reasonably sized, it’s ready to print! Who wants a hard plastic tissue to blow their nose with!?

Baby Burrito… Gone!

Baby Burrito Gone!

There’s no denying we had fun at Maker Faire Milwaukee, but we did have one sour note during the weekend… Our oldest still functional Power Racing Series car disappeared!

We hauled Baby Burrito to the fairgrounds to tool around on during the event, and race it if needed. Tom managed to get a flat tire (!?) and left it somewhere (!?) and the next day when he went back to get it, it was gone. (!?!?!)

Baby Burrito Gone!

Be on the lookout for this slow moving vehicle. Also, it has no brakes, though you can “fire the retro-rockets” to stop it, which involves hitting the reverse button quickly to stop the forward motion.

Baby Burrito Gone!

If you know the whereabouts of Baby Burrito, please let us know. We aren’t out to prosecute anyone, we just want our silly car back.

You may remember it from such events as the South Shore Frolics 2014 parade. (Though you won’t see it in the video, because I was driving it and had the camera on my helmet!)

CubePro Trio

CubePro Trio

We recently got in a CubePro Trio from the folks at 3D Systems and while we’ve still got a lot of testing to do, we’ve started to run it through its paces.

It’s definitely a nice looking machine. Professional quality build all around. Matt N. spent some time setting it up and hit “print” on a rather challenging model (with tiny spires and everything!) The first print turned out OK, but as with any 3D printer, there’s probably a bit of tweaking (or reading of the manual) to do.

Print from CubePro

We’re excited to see what our members can do with this machine, and how it compares to the MakerBot, LulzBot, and Solidoodle we currently have in the 3D Printing Lab.

Stay Tuned!

Shark Tank + MagneTag

MagneTag + Shark Tank

You’ve probably heard a little bit about MagneTag before if you’ve seen Adam or Jason H. around the space. Adam’s been working on it for a few years now, and Jason H. jumped on board when he saw how awesome it was. The latest in MagneTag news is a call back to the TV show Shark Tank.

Yes, that’s right. Shark Tank. It seems they were in Milwaukee recently scouting ideas for the show and our MagnTag boys impressed them enough to pique their interest, so they’re preparing to wow them again, and we’re pretty sure they’ll succeed!

MagneTag is a bit of a makerspace success story. Adam and Jason H. would agree that without Milwaukee Makerspace, it would not have come this far. Let’s all wish MagneTag luck as they wade into the shark-infested waters of potential investors!

Powered Up for Maker Faire!

Lotusaurus Wrecks

Whew! We had quite a weekend! Somehow we managed to cram both Lotusaurus Wrecks and Iron Rose into the back of a minivan and haul them to Maker Faire Detroit. Luckily a second car followed us with all the tools and batteries.

It was a wonderful weekend of racing tiny electric cars. What’s that? You don’t know about the Power Racing Series? We take those Power Wheels cars that you buy for your kids, get them for free or super-cheap from craigslist, and then rebuild them as electric race cars for adults… for less that $500. Yes, it’s a little ridiculous, but it’s also a lot of real engineering. Some of these cars will impress the crap out of you!

So how did we do? Well, the cars held up, even through a few crashes, so that’s good. Audrey drove Lotusaurus Wrecks to victory in one race, and Iron Rose proved a dedicated mid-fielder throughout the weekend. All in all, it was pretty awesome.

Iron Rose

Note: We know you want to see this crazy racing yourself… well, you’re in luck! We’ll be holding a race at Maker Faire Milwaukee happening September 27th & 28th, 2014. Join us for the madness!

littleBits Projects

littleBits

Back in June we announced some Instructables Build Nights featuring littleBits and the new Arduino at Heart modules. We had a lot of members play with the ‘Bits during the last six weeks, and we’re still waiting for Steve to publish the detailed instructions on his “littleBits-powered Vomit-Inducing Machine”, but for now we’ll have to make do with the littleBits Arduino Annoying Machine that Eric and his son built.

I also got in on the action, with two Instructables that (sort of) go together; littleBits Serial Data and littleBits Serial Controller. All of our projects make use of the Arduino module, which add some great programming functions to the littleBits world.

If you didn’t get a chance to play with the ‘Bits yet, we will have four littleBits Deluxe Kits and a bunch of Arduino modules at the space to experiment with. They should be treated like a LEGO set; build something, then take it apart. Hopefully having some fun and learning something new along the way.

(Big Thanks to Instructables and littleBits for providing the kits to us!)