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3D Modeling Applications

3D Modeling Applications

Well, the time has come… For years I ignored the third dimension, working only in 2D. Even then, I typically favored raster graphics in Photoshop over vector graphics in the likes of Illustrator. Of course the Egg-Bot brought with it the need to dig into Inkscape, and I’ve done well enough there, finding it useful enough for my vector-based tasks… but now comes…. 3D!!!

Now that I’ve got access to a MakerBot, I have this need to deal with 3D modeling software, starting out with converting formats, and eventually designing things on my own, and actually output STL files. So begins my journey, and a look at some of my options:

3DTin
I mentioned 3DTin.com in my last MakerBot post, and while it’s a great way to get started and have something usable in less than 10 minutes, I don’t know that it will be a serious tool for what I’d like to do. It seems to have no concept of converting formats. It’s still a great (although limited) tool, for what it is…

Google Sketchup
Our pals at Google have Sketchup (the free version) which seems pretty darn popular, and thanks to a few awesome plugins, I’ve been able to import and export STL files. (I haven’t tested the printing of any yet, but that will happen soon.) Sketchup confuses me. I should probably spend some time with a tutorial and figure it out. Is the free version limited? I know that they took out the ability to export DXF files in the latest version, and to get that back you’re expected to buy the pro version for $495. Yikes!

Blender
I must say, that without a doubt, Blender is one of the most confusing pieces of software I’ve ever used, and I’ve used Windows… at a large corporation even! I know Blender is powerful, and in the hands of @knellotron or another skilled operator, great things can be done. But even just trying to import and export a file was too difficult. The “File” menu kept disappearing!

123D
From the folks at Autodesk comes 123D. Windows only. I won’t even look at it unless they create a Mac OS X version.

OpenSCAD
Well, there’s always OpenSCAD, the “Programmers Solid 3D CAD Modeller.” But it’s all codey and programmey, and not visual, which may be cool for some things, but it’s probably not the best to start out with…

I even went so far as to fire up Processing and write code to output STL files via the unlekkerLib library, which is outdated anyway and I should be looking at the ModelBuilder library. Argh…..

So that leaves me with a “???” which should be obvious is a question to you: What do I do?

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Software Patents are (still) Evil!

This American Life

For those of you who don’t think that software patents are evil, or don’t know enough about the subject, check out This American Life #441: When Patents Attack!

You could extend it to all patents are evil but I’m mostly concerned with software patents, which are probably the number one thing stifling innovation in the technology industry.

If you want more audio content about patents, you can also check out TWiG #106.

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The Future of Open Source

Open Source

Open source software has been around for a long time, and I’ve been following it’s evolution for the past 10 years or so, and in that time I’ve seen it grow from a small idea known only to those in the software world, to something much larger, where everyday people like Aunt Tillie use open source software and think nothing of it.

In the past year since I’ve started working more with hardware, and following the great work of the Arduino team, Adafruit Industries, and others, I’ve seen the rise of open source hardware. Take a look at the Open Source Hardware (OSHW) Statement of Principles and Definition v1.0 and the Open Hardware Summit site for more info.

There’s a great comment by Chris Anderson, highlighted in this blog post at Adafruit. Here’s just a small excerpt:

This is the classic open source hardware model. Software, which costs nothing to distribute, is free. Hardware, which is expensive to make, is priced at the minimum necessary to ensure the healthy growth of a sustainable business to ensure quality, support and availability of the products. All intellectual property is given away, so the community can use it, improve it, make their own variants, etc.

Go there now and read the whole thing.

This got me thinking that eventually open source hardware could be more successful than open source software. If you remember the old concerns about open source software by the business folks, there was always the question of how you would make money from it. You can sell “Premium Editions” or make money by charging for support, you can hire yourselves out as consultants, and offer customized software solutions for customers… The ideas were plenty. Some worked, some didn’t. There were varying degrees of success.

I see open source hardware as pushing beyond that, taking the existing model and improving upon it. The software? Free. Open. Get it rolling, get the community involved, give it away to everyone. You should expect to make no money with software. Sure, it costs money to create software, but it’s a digital good, and making one copy or 1,000 copies has almost the exact same cost.

Hardware, on the other hand, is a physical good. It’s an object, a collection of parts, or things, not just bits of ones and zeros. Hardware costs money because someone, somewhere, assembled some real world thingamabob.

I don’t want to make it sound like hardware is better than software. They’re both equally important. They both need people to design them, create them, market them, and support them. The main difference is that creating 1,000 Arduino-compatible microcontrollers is going to cost more that creating 1,000 copies of the Arduino software. That’s just the reality of digital goods. Once you have one copy, making a lot more is cheap and easy. (And the shipping costs on digital goods are pretty close to zero. I say “pretty close” because there are server costs, bandwidth considerations, and other issues, but you’re not buying boxes, and packaging materials, and paying shipping companies to move goods.

As for the clones, well, that’s just a part of open source hardware, much the same way that an open source software package has forks of the original. Again, the difference is in the support, but support goes both ways. Since open source hardware vendors typically publish everything you need to make their products, you could certainly not buy from them and either build it yourself, or find a company that makes it cheaper. Cheaper is fine. I’m a fan of cheaper, but I’m also someone who believes in supporting those that create things and add value. If it all comes down to nothing but money, we’re pretty much doomed.

(Next time I’ll talk about specific pieces of open source hardware. See you then!)

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Developer Perspective

Swirly

I’ve come to realize that when I think about some tool I want to build, it’s typically driven by that “scratch your own itch” idea, where a developer does something because they want to solve their own problem. You’ll most often hear this idea attributed to open source software. Often my ideas come about when I think about who controls my data, or the software that I use. I tend to work towards maintaining my own freedom.

But there’s a whole other side… There are developers who develop something, and it’s not because a client hired them to, but because they think it’s a great idea, and sometimes they do follow the “scratch your own itch” idea, but they also think there’s a great money making opportunity worth exploring. Some developers within this realm are fine with creating something, and either selling it off, or letting it die if it “doesn’t work” or doesn’t become popular.

I’m not suggesting that one idea is better or worse than the other, it’s just an observation. I’m really interested to hear what others think…

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Infinite Campus

Infinite Fail

So far I’m not impressed with Infinite Campus…

I know, the school year hasn’t even started, and there probably isn’t much data in it yet, and the fact that they misplaced my daughter, and had someone completely unrelated to my family associated with my account (somehow living in my house, with my mobile phone number) is all probably the fault of some human rather than the system itself…

I’m interested to know how much Infinite Campus costs. From my preliminary research, it looks to be expensive. Really expensive. REALLY REALLY expensive. Aren’t there open source alternatives to these things? I mean, it’s not like there’s a need for software like this… it’s only the educational market, how big can that be? I probably wouldn’t mind having my tax dollars used for the development of open source software that pretty much every school district could have the option to use to manage things…

Obviously I’ve not seen the back end of this thing… If it makes life easier for the teachers and administration, that’s a good thing… My opinion is only that of a user. A user who has about 15 minutes of using it. So far… I’m not impressed, but I’ll keep an eye on it. It seems to work for other schools. Maybe it’ll just take time. Hopefully I won’t have to fix things myself like I did with WebGrader.