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HDPE Shreds

Shredded HDPE

Our latest experiment in recycling HDPE into sheets uses material that one of the guys in the shop got from Craigslist. It’s a giant bag of shredded HDPE scrap. It’s all white, and very clean. I think it was used for archery targets or something.

Bag of shreds

Here’s a photo of one of the bags with a one gallon jug on top of it. (We’ve got three of these bags!)

Pan of shreds

I thought this would be the perfect material, and it is good, but it takes a while to melt down. With jugs I could cut them up into small flat pieces and fill the baking pan, but with the shreds it’s mostly a matter of trying to stuff as much as I could into the pan, then heating it until it melted flat, and then adding more. It’s not a fast process.

Flattened sheet

Despite the time involved, the results were good. I may have rushed things a bit, as the, plastic did not seem completely pliable when I put it on the board (aka “The Press”) but I decided to go for it anyway.

The results were ok, but it’s definitely not as smooth (or shiny) on the surface as the last attempt. Getting it the right plasticity is important in this process.

Surface of sheet

The size of this (oval shaped) piece is about 8″ x 7.5″, which should yield a square sheet of 6.5″ x 6.5″. I’ll probably go back to using the larger square glass pan next time instead of the loaf pan.

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Hidden River Art Festival

Emerging Artist

I’m excited to announce I’ll be taking part in the Hidden River Art Festival at the Sharon Lynne Wilson Center for the Arts on September 19th & 20th, 2015.

I decided to make it an interactive experiential thing, and if you stop by you’ll get a chance to operate the Turndrawble, a turntable-based drawing machine I completed earlier this year. (You can also ask such questions as “Is the Turndrawble itself art, or is it the engine that makes the art?”)

You’ll be able to to create a piece of art and take it home with you, or donate it to the growing collection of pieces created by the Turndrawble.

I hope to see you there, help you make a unique piece of art, and talk endlessly about drawing machines and digital fabrication!

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HDPE Sheet Cake

HDPE

In our last experiment recycling HDPE into usable form, we created a brownie pan full of plastic. While this looked impressive, it wasn’t the best idea for something that was going to be milled. It ended up being much thicker than needed, and finding a cutting bit with the proper LOC (Length of Cut) proved to be an issue. I was all set to mill a thicker piece, but we blew a fuse on the Shapeoko.

HDPE

I decided that I needed sheet material of a uniform thickness, so I ended up creating a simple press using two pieces of wood, with some spacers. Once I warmed up the HDPE block I got it out of the pan, onto the wood, and stood on it until it was squished flat(ish.) I then put some weights on it until it cooled.

HDPE

It turned out well! It’s a pretty uniform thickness now, and this was just under 1/3rd of a bread loaf pan, so I may need a bigger press if I want to do bigger melts. I can also make different presses with different thicknesses as well.

HDPE

Funky!

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Laser Pointer Switch

Laser Pointer Switch

I modeled a laser pointer switch which you can use with your cheap laser pointer to turn it on and do stupid things like throw it in the air while doing long exposure photography. (Actually, that’s not a bad idea! Or is it?)

Laser Pointer Switch

OK, these are really part of the Laser Maze we’ll be running at Maker Faire Milwaukee this year. The last thing I did for Laser Maze was the mounts, but Vishal is still doing most of the hard work on this project. (Thanks, Vishal!)

Laser Pointer Switch

If you want one, you can grab it from Thingiverse or Youmagine. And remember kids, laser are dangerous, don’t just go pointing those things around!

Laser Pointer Switch

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PPPRS KC 2015 Cars

Moxie Board

Hello Racing Fans! I thought it might be appropriate to show you the cars that raced at Maker Faire Kansas City for the 2015 Power Racing Series

Mutt Cutts

Mutt Cutts was one of the cute cars. You may know it from the “Dumb And Dumber” films. Well, here’s a tiny replica. It wasn’t the fastest, but it was the furriest. This was one of those cars that we worried would tip over in every turn. It didn’t.

Sweet Tooth

Sweet Tooth, built by Collin Royster, a prop-maker in Kentucky, was a damn impressive build. The clown head and forks were for decoration only, and got removed for the races.

Phantom 48

Phantom 48 returned once again! These guys just keep refining their already fast and reliable car. The rat rod impressed us with its looks in 2013 and hasn’t changed much cosmetically, but from what I understand they’re constantly tweaking the code running on their controller.

Cartastrophe Jeep

The Cartastrophe Jeep also returned in 2015, and just like Phantom 48, their car looks about the same, and performs about the same. Fast and reliable, most of the time, except when it breaks.

KITT

KITT from OMG is the car from Knightrider, and it did good, not too fast, and not too much breaking down. A good mid-fielder.

Huminator

The Humninator, the only in the series with a full suspension system! The Humninator is a take on The Terminator theme, and a Hummer. A pretty fast car, though it suffered a bad failure in KC, Scott is fixing it up for Detroit!

Herbie

Herbie (The Love Bug) is just adorable, and is the work of Chris Lee (from Nashville’s Kessel Runners Racing) super-star Wars Nerd and prop-builder.

Minecart (Steve)

The Minecart (also known as “Steve” was a big wooden box that surprised us all with its speed and agility. There’s some great reasons to build your car as a big wooden box. An unexpected surprise with this one!

Dangermouse Mark III

The second car from the Cartastrophe was the Mark III from Danger Mouse. I am unfamiliar with the series, but the car is a wedge of cheese. It did well for the first showing.

Jurassic Rover

Jurassic Rover is another really nice build from our friends from the south. I can’t remember which state they were from, but the car was beautifully done.

Duct Tape & Zip Ties

Duct Tape & Zip Ties car is an old classic, build mostly from old bikes. It’s not fast, but it is (somewhat) reliable and goes for the “slow and steady wins the race” idea.

FUBAR Truck

FUBAR brought their old green truck all the way from New Jersey! Bill and his team keep fixing it and breaking it and racing it and having a good time. That’s what it’s all about!

LEGO Car

LEGO Car (as we called it) was built by a team of high school kids. The body was foam and kept breaking, there was a Razor scooter underneath for steering, they used 6 motors, of which between 1 and 3 worked, they blew their controller and used a relay, and they were known as a “rolling chicane” but they had fun and were a crowd favorite. Awesome.

Bigger photos? See them on Flickr. More will be added over time…