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Sam Carroll's RepRap Wiki

Info, Blogs, Projects, more!

About Me

RepRap User: Sam Carroll
University Penn State
Class of 2016
Major Civil Engineer

Blog 1: The cool place to spend hours searching for random things, no not Youtube, but Thingiverse

For those unfamiliar with Thingiverse, it is a huge online warehouse of files of 3D object people have designed. Why spend hours drafting something that has already been done? If you can't find what you need on Thingiverse, design it and consider uploading your creation yourself!

Something Amazing

I'm amazed.


Design Here: Chain

Something Funny and Strange

Come on it's a Jetpack Bunny, a lot of them!


Design Here: Jetpack Bunny Design

Something Useless

No Real use


Design Here: Minecraft Steve

Something Useful

GPS holder.jpeg

Design Here: Garmin Mount

Something that surprises me


Design Here: Chainmail

Blog 2: Open Source Ecology

What is open source ecology? Taken directly from their OSE Wiki, "Open Source Ecology is accelerating the growth of the next economy - the Open Source Economy - an economy that optimizes both production and distribution - while promoting environmental regeneration and social justice. We are building the Global Village Construction Set. This is a high-performance, modular, do-it-yourself, low-cost platform - that allows for the easy fabrication of the 50 different industrial machines that it takes - to build a small, sustainable civilization with modern comforts."

Basically their an organization, opperating under open source ideology, that is trying to create a DIY attitude and set of machines that will allow people to become more self sustainable and inprove their quality of life. Why buy huge expensive machinery that you need for whatever you're trying to accomplish, when you can build machines that will fulfil the task for a fraction of the cost? OSE opperates under the same ideology of RepRap, that open sourcing allowes individuals to innovate and create things that they need.

LifeTrac Tractor - Prototype III

Here is a link to a video of one of their tractor's. As a farmboy I find it quite primative. However, I can imagine how for people with less, it would be an amazing improvement to thier quality of life.""

I think that Emily Eakin's article is a disgrace to Open Source Ecology. If you watch this interviewwith Emily about what she intends for the article I think there is a huge gap bettween it and her article. In the interview she is sweet, and seems to suport the project. She says however that information about OSE has stayed in a heady, techy, educated circle of people, and the lay person hasn't had a chance to be informed and learn more. I think her article comes off as a more snobish view of the project than the project really is. She calls it radical, calls the farm 30 weed choked acres, she paints Marcin as a obsesive scientist in kahki's and button down shirt. I don't know what she thinks a layman is, or what she thinks he values, but she didn't write this article to garner support for the common man. As a common man I think Marcin sounds like a nice dressed snob trying to do man's work, some crazy scientist, living 15 miles from anywhere working on stuff. She is unable to write an article for the common man because she isn't connected in any way with what I look at as the common man; Her husband is a professor at the Prestigious Brown University, she writes for the New Yorker. Come on..

Marcin's response on the wiki has simily tones to what I just said. No article is perfect, but he felt the need to write an eight point rebuttle to what was supposed to be a favorable article.

Open Source Ecology, is more than just a good idea in itself. It has created a paradigm that can be studied and replicated to boost inovation and creation. If this open source revolution is to really change the world, it needs to be adapted and replicated by more than people inside the OSE structure. If I was looking for faculty who might be interested in getting involved with something like this, my only suggestion would be Dr. Asbury of the chemistry department. I'm not sure how he feels about open source etc, but I know he is very intersted in technology. He does research with printing flexible photovoltaic cells like a newspaper. While he probably isn't willing to open up about his on going research, I definately respect his intelligence and his chemistry knowledge.

Blog 3: Bionic Hand

The following [ Article] is a story about a high school student who used local and online resources to print out a 3d hand for a small boy with a deformity. The 3-D hand grasps objects when the boy moves his wrist. This object can be found on thingiverse at this link: 3-D Hand File. The project was a team of two men, one in South Africa, and one in Washington State. In addition to overcomming physical handicaps, the men had to overcome time differences and thousands of miles bettween them. In January of 2012 I believe the first hand was 3d printed. Now the files are all available online.

Much of the story is available online as well in numerous places and articles: Blog Facebook Page CBS News Youtube: Makerbot & Robohand

Blog 4: Reflection and Peer Review of Blog 2

Everyone had a lot of their own opinions varrying interprestations on our 2nd Blog about Open Source Ecology. While I thought that my response was all encompasing, a few of my peers had other ideas or found better ways to convey certain points.

Team Members:

While I though that the projects were generally simple enough, Jess disagreed and thought that the designs were quite complicated and pointed out the fact that they require advanced machines like welders, cutting tools, etc.

Zack had other ideas about how the civilization starter kit can be used. He was skeptical about it's use for developed nations but thought it would be a good to help with overpopulation and growth, and also could be an economical way to quickly develop the moon or mars

I respect his opinion, and maybe others agree with him, but I thought that Nate missed the idea of the way that Marcin and the volunteers live and work. He doesn't see the need for them to live/work/build in the basically barbaric conditions that they do. He says that the project would move along faster if they used modern technology, facilities, and didn't try to do everything the hard way. Sure, as Nate says as long as the plans are out there and they build a working prototype, OSE has accomplished it's goal, but that's not how I think movements like this work. Why would anyone care Marcin was some high class engineer, sitting in a high tech lab building these machines? The idea is that it's a civilization starter kit. How can you prove that this is how civilization can be restarted unless you build it in the conditions that civilization would be rebuilt in. I think it adds authenticity the way that Marcin and the volunteers live and work in an "outdated" environment. It's real. Maybe it's because, I have plans to be a farmer and live this kind of life, and grew up watching my grandfather build all kinds of things like this in his shop, but I think it would be a great place to be. It's how real inovation is made.

Class Mates

Ava had some interesting thoughts about the final question about building a Penn State team. She thought it was a good idea, and would want to work with internationals. As the robohand project in blog 3 proved, it is a way to get things done that brings in opinions of people from different backgrounds. I mean how many people do any of us know who legitamately need or have a use for any of the kit machines? While there are problems in our society that we need to work on, a lot of obvious problems with great room for growth and improvement are avaible abroad. It just makes sense that anything for people abroad should have their opinions taken into consideration.

Carson noted something that I overlooked from Marcin: the value of hands on skills. It's really true, we had Industrial Tech clas back in middle school where we got some experience with woodworking, circuts, etc. The teachers would always comment on the number of people who can't hammer a nail. In a way that kind of proves Rousseau's thought, society has made man week. We rely on other people to do everything for us and only do a few specialized things for ourselves. In theory, this works well, especially from an economical perspective, but what if we didn't have those people to rely on. No one knows how to build anything. That's why I like this class more than any others. In other classes people might learn how an internal combustion engine, or a thermal couple, heat transfer, building a bridge, are all done in theory, but actually using any of them is a whole differnt ball game.

Dongao brougth up a point that I acknowledge but I don't think it's a good enough reason to not continue building awesome things like OSE is doing. He was really concerned with the safety of building such big machinery that has the ability to hurt someone if it malfunctions. I know bad things can happen, but I think the best solution isn't to be to afraid to try something new, but to move forward with caution. As long as you use your brain, and you're not an idiot, you can minimize risks.

I just really like a quote from Nam's blog that kind of correlates to the when every you have a hammer, everything looks like a nail. He said "As the saying goes, there are many possible solutions for any problem."

Both Yuchao and Hao also noted the saftey issues, and liablity that could arise from using these machines. I thought it was strange that 3 of the people who's blogs I read mentioned this, but it never crossed my mind.

=Blog 5: In the News

I think that the Jan 19, 2011 article about the creation of direct laser sintering of metal, DSLM, is critical to the future of 3-D printing. While plastic parts are good, if we think about the development of 3-D printers to an advanced stage, and maybe even the implementation of them in the average household, metal printing is a key step forward. In my mind metal printing is what would attract the people with the money to push development and research farther, industry and the government. With more cash from invested industries printing will no doubt be here to stay.

I thought that the article from Oct 5, 2011 is just strange, and really unhelpful to the advancement of 3D Printing. It's about printing shells for captive hermit crabs because of a shortage. I suppose if this is a probablem, it needs a solution. However, it isn't really groundbreaking in any sort of way that I see.

I was really attracted to the article that disgussed the use of 3D printers to make the models for a Chipotle commercial. I did an english paper about this commercial last year, and never knew, or never made the connection to the use of 3D printers. This would really, in my mind, help the still animation industry, because lots of time and money goes into crafting models. 3-D printing would drastically cut down on costs, and spead turnaround time. It may be able to turn around the industry.