posts tagged with the keyword ‘bcmke7’

2012.10.19

Great White

There’s a great post over on the Milwaukee Makerspace site about Milwaukee’s First Nerdy Derby, including some sweet video, but I’m mainly going to talk about my own cars here. :)

I spent a lot of time before BarCampMilwaukee7 getting ready for the event, but I also found a bit of time to fabricate a bunch of parts for people to build cars with, so I was down to the wire when it was time for me to make more cars. I already had Poundin’ Sand, my fully laser-cut car, but I wasn’t content to just have one car. (I had heard Jim R. from the Makerspace had five cars. He didn’t race that many, as I think one or two of them exploded during testing.)

My second car was titled “Great White” and was a 3D print of Mr. Jaws. I ended up kicking out some quick axle mounts in OpenSCAD and just hot gluing them to the bottom of Mr. Jaws. They probably weren’t on straight, but I didn’t take the time to care. In the category of 3D printed cars… I still came in second! Ed managed to build an amazing 3D printed car, and the worst (best?) part is, he pretty much had the same idea as I did, but he managed to succeed. (Print time and print failure were the two biggest concerns for both of us.) I ended up using stock wheels instead of the 3D printed wheels I made a few weeks earlier, which seems silly as I could have gone for a full-on 3D printed car… oh well.

RasterMobile!

My third car was the RasterMobile! which actually consisted of a block of wood from a real Pinewood Derby kit, turned sideways, with two holes drilled all the way through, and 5/16″ threaded rod with inline skate wheels attached. I had skate bearings that seemed to turn well, I had some weight and mass, and it was painted black with RasterWeb! stickers on it. What could go wrong!?

So how did my cars do? I didn’t expect much out of Great White, as it was really light, and the wheels were probably not completely straight. It rolled down the track, so that’s all I can report on that one. I still think it looked cool and was a neat idea. The RasterMobile! didn’t do as well as I expected. I thought it would fly down the track, and I suppose it did, but the mass of it probably slowed things down too much at the bottom. I did get a some satisfaction that Gary saw the skate wheels, ran to his car and ripped apart his inline skates just to try to beat me with my own idea. :) Oh, the RasterMobile! also had an accident where it jumped out of its lane, so that certainly didn’t help things.

So which car did the best? Surprisingly it was Poundin’ Sand that performed the best out of my three cars. I wasn’t sure the laser-cut wheels would be up to the task, and I questioned whether not gluing the 3 layers that comprised each wheel together was a good idea or not, but it did alright!

Poundin' Sand

There’s been talk of doing another race in the future, so I may not be done building tiny cars…

2012.10.03

BarCampMilwaukee7

Whew! It’s BarCampMilwaukee time! This weekend, October 6th and 7th, 2012 is BarCampMilwaukee7… that’s the seventh BarCamp here in Milwaukee, for those of you keeping track.

I’ve got a few things I’ll highlight, the first of which is the Raspberry Pi Roundtable, where people who have Pis, or want to use a Pi for a project can get together and talk about them. Having a super-cheap Linux-powered computer opens up some new possibilities, so we’ll talk about what those are.

The session I’ve got planned is titled Money. Maker. Business. and I’ll talk about how I started up my making business. At Milwaukee Makerspace (and other hackerspaces) members often talk about potential business ideas, so my talk will outline the process I went through, including touching on my Maker Business posts.

Thirdly, we’ll be doing our own Midwest version of the Nerdy Derby race. If you haven’t made a car yet, make one now! If you can’t make one now, Milwaukee Makerspace will be providing miscellaneous parts during BarCamp so you can try to build one. And it’s not just all speed and aerodynamics, and there will be style points awarded as well. (We might even call them “Moxie” points as an homage to the Power Racing Series.)

(And yeah, I’m sure I’ll also bring the RepRaster 5000 and enjoy some 3D printing hijinx as well.)

So yeah, barcampmilwaukee.org has all the details. I hope you’ve already registered, because if not, we may not be able to feed you. Come anyway! We’ll figure something out, there are restaurants nearby, it’ll all work out, somehow, as it always does. :)

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