Tag Archives: ppprs

Wienermobile and Wienermobile

Posted on by Pete Prodoehl

If you joined us at Maker Faire Kansas City maybe you got to see the debut of the little Wienermobile we built for the Power Racing Series. Besides being well received from the crowd, it did pretty good in the race! Due to Moxie points (which get awarded for being awesome) we won the overall race weekend. We came home, wrote a blog post about it, and started getting ready for Maker Faire Detroit…

Detroit was a blast, and well, a few things broke, but meanwhile the folks at Oscar Mayer noticed what we did, and sent us an email asking if the BIG Wienermobile could come visit the LITTLE Wienermobile. We responded with an enthusiastic “YES!!!”

And that’s how the Oscar Mayer Wienermobile came to visit Milwaukee Makerspace on September 1st, 2017. You may notice the two Wienermobiles look quite a bit different. Well, there have been many different Wienermobiles over the years. Due to some confusion about which model we based ours on, we looked at the fact that the vehicle was designed by Carl G. Mayer in Madison, Wisconsin, in 1952 and received its patent in 1954. So we split the difference and chose number 1953. Good Enough!

Honey Mustard and Sammie Jo (yes, the “Hotdoggers” get cool nicknames) loved our little version of the Wienermobile, and we gave them a quick tour of the space, explaining what a makerspace is, and how it works, and showing off Willie’s boat for the very last time.

Since the Wienermobile was there at 9am on a Friday, a lot of our members were at work, or sleeping, or building Daleks. We had a good group of members though, many who helped with the construction of the Wienermobile in some way. (Not picture: Kathy and Kyle, the primary builders! Unfortunately they were out at Burning Man showing off some of their other crazy projects!)

Mat (pictured sitting on the Wiener) served as our driver, providing a demo of the capabilities of the Wienermobile at full throttle. (Reminder: we really need to fix the brakes before driving it again at full throttle!)

Besides all the awesome members who showed up to meet the giant Wiener, we should have a shout-out for Rick, who was busy grilling up Oscar Mayer wieners for us! We all had an early lunch that day, and everybody got to grab a wiener.

Oh yeah, when the Wienermobile is parked outside your makerspace, there’s a good chance the neighbors will notice. A bunch of people who live near the space stopped by, got whistles and stickers, and then got to go inside the Wienermobile. I heard at least three different kids describe it as “COOL!!” and “AWESOME!!”

What can we say? We like big buns and we cannot lie! If you haven’t seen the little Wienermobile in action yet, make sure you visit us at Maker Faire Milwaukee on September 23rd & 24th, 2017 at the Expo Center at State Fair Park. We’ll be racing it against 15 other similarly weird and wild vehicles in the Power Racing Series.

And who knows? Maybe the big Wienermobile will show up again!

No welding? No PPPRoblemS!

Posted on by Pete Prodoehl

If you’re not familiar with the Power Racing Series, it’s a challenge to build and race an electric vehicle. You start with a Power Wheels car and transform it into a powerful machine that can transport a human, and oh yeah, you have a budget of only $500. (Pictured above is a car made by some 15 year old kids a few years ago for Maker Faire Detroit!)

You can find super-cheap (and even free) used Power Wheels cars on craigslist, and usually the batteries are dead and there’s no charger, which doesn’t matter, because we replace all that with more powerful motors, batteries, motor controllers, brakes, etc.

One of the goals of the series has been to get high school age kids involved, but some of the skills needed to build a car may be out of reach of your local high school, such as working with metal. Welding equipment may not be available, and mentors may not have metalworking skills, so we wanted to develop a reference vehicle that uses no welding. We chose to mainly work with wood for our build, but check out the “no-weld car” wiki page for some other builds…

Here’s the start of our frame. It’s all wood, glue, and screws. We’ve utilized a torsion box design for strength. So far we’ve only used a saw, drill, and some clamps. No specialty tools that are out of the reach of your common workshop. We’ve got a long way to go, but we’re going to try to make this car super-cheap, and easy to build, so that many teams (of kids and/or adults) could easily build it. As members of a makerspace, we may tend to forget that not everyone has access to the tools and skills we do.

We’re also working on front wheel spindles build using wood and bolts. Yes, you can buy metal spindles for cheap, but a lot of what we are doing is experimenting with materials and geometry, which should provide some valuable lessons along the way, and it should be cheap/easy to modify things, try-test-try again, and see what the outcome is.

You can check out more about this project on the Milwaukee Makerspace wiki. We’ll do our best to add updates as we go. Hopefully this thing will be ready to race in June at Maker Faire Kansas City!

Bluth Family Stair Car – PPPRS

Posted on by Pete Prodoehl

For the Power Racing Series event at Maker Faire Detroit we decided to rebuild Duck, which was rebuilt from Noah Way, into something new. We decided on the Bluth Family Stair Car because we love Arrested Development and because Jim added it to the list of cars that get extra Moxie points.

stair-car-01

The photo above served as our reference image when we were building the body for the car. We didn’t really make any modifications to the frame of the car, and it remained largely what it was when it raced a Make Faire Kansas City in June.

stair-car-02

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PPPRS in KC at MF

Posted on by Pete Prodoehl

Harbor Freight

We went crazy a few days before Maker Faire Kansas City and rebuilt a vehicle for The Power Racing Series. The boat that was a basket turned into a duck…

Of course no PPPRS trip is complete without a stop at Harbor Fright. We bought all the pink tires they had. You know the pink tires, the ones that destroy themselves? Yeah, those pink tires…

Duck Car

Duallies again! Brings back memories of Red Lotus, doesn’t it? But this time we did not destroy any pink tires. We destroyed other things, but we fixed most of them.

Duck Car

Ed was our primary mechanic and handled all of the electrical system stuff and most of the other difficult things. Ed has a lot of experience building cars and other things…

Duck Car

Lori (aka “The Lorry”, aka “The Truck”) has raced before in Kansas City, and it was good to have her back behind the wheel, er, well, handle bars… Unless you count the main drive wheel when we say wheel. Yeah, let’s talk about that bicycle hub motor that runs at 24 volts, and not 36 volts.

Duck Car

Kathy went full-on duck, but can you blame her? About that hub motor… It’s built for 24 volts, but after the controller malfunctioned we switched it out for a 36 volt controller, which would only work with 36 volts attached to it, so we added a third battery and went crazy. Things worked until they didn’t and the motor burned up, even though we kept pouring water all over it. Drat!

Duck Car

Well, that’s the way it goes in the PPPRS, you either taste victory or you smell things burning. We did manage to get within the top five during the Endurance Race, and maybe even hit second place at one point. It’s all a blur really, and honestly we care more about having fun than we do about winning.

See you in Detroit!

Noah Way!

Posted on by Pete Prodoehl

Noah Way!

A few of us worked on a car for The Power Racing Series and somehow we got it done at 3:15am on Thursday night after about a week of intensive nights cutting wood, and trying to weld metal, and scrounging for batteries. We then took it to Maker Faire Detroit and raced it.

The car is modeled after Noah’s Ark, supposedly dimensionally accurate, scaled down, of course. It runs at 24 volts and uses one 250 watt hub motor meant for a bicycle. It was not fast. It drives like a boat, maybe because it is one.

We didn’t break down until the last few minutes of the Endurance Race when we popped a tire, so we just kept going on the rim. (Our qualifying lap was 40.40 seconds. Also our car is #40. Amazing!)

We built this in about a week, and made a lot of compromises to get it done on time. Originally we were going to use two 250 watt hub motors for the rear wheels, but… compromises.

The good news is you can spin around in a super-tight radius by turning the wheel 90 degrees and then going full throttle. The bad news is, you might puke afterwards.

Anyway, we’d love to see more people build cars for The Power Racing Series event that will be happening at Maker Faire Milwaukee. If you start now, you’ve got 60 days, and since we built this in about 6 days (and rested on the 7th) it should be totally doable.

Remember, you don’t have to be fast if you’re awesome. You do need to go, and stop, and not take it too seriously. If you can do those things, we’ll see you at the races!