User:Kac487/Blog

Blogs

Blog#1

(A) Something amazing/beautiful:

This item on thingiverse.com struck me as being quite amazing. It is a snap together robotic hand originally designed for people who have disabled or impaired hands. This design can give a whole new level of freedom to people who require prosthetics. These kinds of designs would allow people to print their own parts and modify them to what fits them best. None of that freedom would be possible without 3D printing.

(B) Something funny or strange

3D printed toilet parts seems like an odd application for this kind of technology. However, this goes to show that some day people may possibly use 3D printing to assist with common household jobs/repairs.

(C) Something useless

These Star Wars themed cuff links seem rather useless to me. I can not think of too many occasions where someone would require formal attire and want to show off Star Wars figures at the same time. 3D printed metal cuff links seem like a good idea however.

(D) Something useful

This grocery bag holder strikes me as being particularly useful. This item looks like a compact/portable design that is fairly simple to print. the design could also be easily modified to add more hooks to carry more bags at once.

(E) Something which surprised you

This flexable junction surprised me because of the properties of the material that are being used to make it. I have always thought of 3D printed objects as being rigidly structured that will crack/break when under load. The fact that this object is flexable means that there is potential to design parts that can flex when placed under stress.

Blog#2

(A) General Impressions of the OSE project

The Open Source Ecology project, especially the Global Village Construction Set seems like an idea that would potentially be extremely useful for people who live in places where technological resources are not as abundant as they are here in America. The general idea is to develop blueprints for a number of open source industrial machines that would allow people to live a modern lifestyle. Marcin wants to do this under the constraints that these machines meet the following criteria.

- Open Source - Closed-Loop Manufacturing - Low Cost - High Performance - Modular - Heirloom Design - User Serviceable - Flexible Fabrication - DIY

Looking at the 50 different machines that Marcin is proposing, I believe that it is definitely possible to develop machines that meet most of the criteria. However, some of the machines like the Linear Solar Concentrator, and the Laser Cutter are definitely going to require parts that can not be fabricated. A second thing I have noticed is that safety constraints are not part of the criteria. The fact that these open source blueprints may be utilized by people who are not entirely educated in areas of fabricating machinery could prove to be problematic.

(B) The New Yorker on the OSE project

Link to article and response can be found here

In my oppinion the article written in the New Yorker is overly critical toward Marcin Jackubowski. The author of the article seems like she is trying to pick on any little negative detail related to Jackubowski's lifestyle. She picks at everything from Marcin's ethnic background, to the cloths he wears, to his personality. The article barely brushes on Marcin's goals, and long term plans of creating open source machinery in order to better peoples lives on a global scale.

Marcin Jackubowski's wrote a response to this article in one of his wiki pages. In this response, he professionally clarifies some of the misconceptions that have been caused as a result of the article.

(C) Creating a PSU OSE Project

One of my EE professors that might be interested in participating in an OSE project would be Dr. Jeffrey Mayer. He is a professor who teaches courses on energy conversion and power electronics. This is an area within electrical engineering that would be particularly useful in developing power sources for other machinery.

A second professor who may be interested is Dr. Mark Wharton. He teaches numerous circuit design courses, and he fixes printed circuit boards in his spare time. He may be interested in helping to create integrated circuits that would allow some of the machines in the OSE project to function.

Blog#3

(A) Write a response to the fallowing article

Link to article here

It seems like 3D printing prosthetic parts is increasingly becoming a feasible alternative to purchasing prosthetics developed using prior manufacturing techniques. 3D printing also gives those who are physically handicapped a new level of freedom in terms of the amount of customization that can be put into the prosthetic parts. Apart from hands and fingers, there are other prosthetic pieces being developed using 3D printing technology (see the first link in part (D)). Prosthetic legs, eyes, and even jaw pieces have been developed (granted they may not be as cheap to produce). But as 3D printers become more and more common, the prices of building these objects should begin to drop significantly.

(B) Who created this design and when/where was it done?

Mr. Richard Van As, a man from South Africa invented the Robohand after having lost several fingers in an accident with a table saw. He realized that the only prosthetic parts available for people with missing fingers were extremely expensive so he decide to attempt to construct his own. While seeking out cost effective ways to make a prosthetic hand, Richard came across a Youtube video showing a design for a mechanical hand. The video was posted by a man named Ivan Owen. Richard eventually got in contact with Ivan and the two met in South Africa to collaborate on creating a design. Eventually the two took their design to MakerBot in hopes that they would be able to 3D print low cost specialty parts.

(C) If you wanted to make one, where would you go to get it?

The (.stl) files to make a Robohand are available for download at Thingiverse.com

(D) How many articles can you find which reference this technology?

Here are a few links to articles covering similar topics:

- textually.org - gizmag.org - iflscience.com - washingtonpost.com

- huffingtonpost.com