Server Parts/Custom Case

I recently went on a bit of a craze and upgraded my graphic card from a crossfired AMD Radeon HD 5770 to an AMD Radeon r9 280x because I couldn't turn down an amazing deal. As part of the whole package deal, aside from the 280x, I also got a ASRock970 extreme 4 motherboard, an Athlon quad core X4 630 CPU and around 9 gigs of more or less working RAM sticks. Basically I bought a graphics card for a great deal but ended up with enough extra parts to build another computer.…Read more …

Plans for the Website

So it has come to my attention that my website isn't as professional as it should be in the sense that I am using a wordpress implementation entirely so that when recruiters look at my site they'll probably think to themselves: "oh what a lovely site (hopefully) but anyone could just go to wordpress.com, create a 'blog', buy a domain, PAY wordpress to link the domain to their servers and then call it a personal site! No originality or demonstration of skill. :(" The guided thought above is my biggest fear when including…Read more …

Minecraft Server

Quite an informal use for a website that is supposedly supposed to say a lot about the owner. Nonetheless, I have gone through what should've have been a painless process of linking a subdomain to a minecraft server's IP address and will divulge what I've learned. For the most part, one can follow the Mac setup guide found on minecraft's unofficial but really official looking wiki page: http://minecraft.gamepedia.com/Tutorials/Setting_up_a_server#OS_X_Yosemite_instructions Getting/Installing/Running the minecraft server: I will assume that java is already installed on your computer but there was a minor blip in the process that…Read more …

General Introduction To 3D Printing

To readers, This is my attempt of showing you what 3D printing is all about. While the general public can only awe at the thought of what a 3D printer can make and drool over technology that they believe that they have to pay $1K+ just to have one, what they do not know is that such 3D printers can be built by the typical at home user with basic tools for a budget of around $400 USD. [UPDATE: Prices have dropped dramatically since my build. The price of components have now dropped…Read more …

How to Install Homebrew, Python, and OpenCV 2.4.5

The following instructions only apply to Mac OSX users. Make sure you have the following before starting: Internet connection Mac OSX Command Line tools Terminal If you do not have Mac OSX Command Line Tools installed, go to apple.com/dev. Create an account and then go to the Mac Developer section to find the individual .dmg file for MAC CLT. Another options would be to install Xcode and then install Mac OSX Command Line Tools via the setup process or by going into the settings and installing the add-ons needed. These are dumb step…Read more …

Calibration – Motors and Pulleys

Initially I thought that because there were two grub screws on the motors that I would not need to flatten the motor shafts due to the fact that there supposedly was 2x the grip. However what I didn't know what that the metal used in motor shafts is purposely softer to prevent damage to the motor when under high torque, which I soon found out when my prints kept coming out shifted in either the x or y axis.┬áThe drawings above show in general why motor shafts need to be flat. The problem…Read more …

Calibration – Acetone/ABS Slurry

When printing with ABS, a common problem is warping. Warping is especially prevalent when printing big objects because by the time the extruder nozzle comes around to add a new layer on top, the bottom layer would've already cooled and thus the uneven heating causes the piece to warp like a bimetallic strip. The reason ABS requires a heated bed is to counter the warping effect so that the bottom layers are kept hot and thus around the same temp as the layer currently being extruded. The problem lays when you start building…Read more …

Calibration – Filament Sources

Initially, I bought a reel of transparent ABS filament from a distributor based in New York solely because it was transparent. Natural ABS is milky white and very much opaque but can be colored while PLA is naturally transparent and can be tinted. When printing with the transparent ABS, I found myself wondering why my prints looked more like PLA than ABS and why the filament was so weak. Although I have no evidence of my suspicions, but I suspect that in order to make the naturally opaque ABS clear, manufacturers chemically alter…Read more …

Calibration – Heating Issues

Heating issue in this post refers to both the lost and gain of thermal energy. Over Heating issues When heating up and during long prints, I noticed that my Polulu stepper controllers were getting quite hot even with the heat sinks. I figured that it was probably because of their proximity to the MOSFETs but I couldn't be sure. The MOSFETs sometime ran hot and at other times ran cool enough during heating so that they could be touched directly without pain. Although I am not completely sure what a MOSFET does, I…Read more …

Calibration – Complex Object 1

Having already printed numerous cubes, I wanted to just go ahead and see how well my printer would do with a more complicated print. I searched Thingiverse and then found the most popular object being printed. The Twisted Gear Vase. And it actually printed! As mentioned before, I am noticing that the transparent ABS that I bought is very "un-ABS-like-y". I will investigate this further later.    Read more …