Popular Open Source 3D Printers

Popular Open Source 3D Printers

Just a decade ago, 3D printers were a novelty. Costing upwards of US$5,000 for a desktop edition that could convert some powder into plasticky objects. But not only have the prices fallen, More »

Open Source Gift Ideas for the Holiday Season

Open Source Gift Ideas for the Holiday Season

It is the holiday season and a time to share and exchange presents. And what better way to share some love this holiday season than by giving your loved ones an open More »

Wekan – Open Source Alternative to Trello

Wekan – Open Source Alternative to Trello

Wekan is an open source collaborative project management tool similar to Trello like boards. It offers some of the Kanban functionalities and features as well. On Wekan one can easily create boards, More »

The Zero Terminal – Pocket Computer that works!

The Zero Terminal – Pocket Computer that works!

The real joy of tinkering with Raspberry Pi is to build something nifty and fun. To hack a really whacky and crazy idea into a working prototype. That we all love and More »

OpenAg – Open Source Food Computer

OpenAg – Open Source Food Computer

MIT Open Agriculture (OpenAg) is a wonderful execution of an open source initiative for controlled-environment agriculture platform referred to as “Food Computer”. All hardware, software and even data is open sourced so More »


Category Archives: How To

HPLIP – HP Print Drivers for Linux

Sometimes when you install your favorite Linux distribution, the default print drivers either fail to print or worse fail to recognize the printer outright.

Thankfully, there is a solution to this problem for at least HP printers. HP is now supporting over 2,200 printers (including Multifunction, Inkjects, Laserjets etc) with proper Linux drivers that are supported through the life of the hardware. A detail of which can be found on hplip website here.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Installing Ubuntu within MacOS X

Many of us have wanted to try and install Linux but cannot part ways with our Windows or Mac OSX. Sometimes, we are not sure if it is worth the switch or if we will ever be comfortable in the new alien environment. But, there are alternatives to this. We can still run Ubuntu and other Linux within our Windows or Mac without needing to uninstall either. Yes, we can actually run Windows and Linux simultaneously using a simple and small software application called Virtualbox.

Of Course, such a solution works great on a fast computer with lots of memory and hard disk space. We recommend at least an Intel’s Core2Duo computer running 4GB of RAM. If you do it in anything less, you might run into performance issues.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

How to Install Ubuntu Linux

A lot of my friends have asked me to install Ubuntu Linux on their computers as an alternate to Microsoft Windows. And many more have asked for a suitable and easy to follow guide for doing just that. So here it is. A simple and easy visual guide that I have put together for everyone, even non-techies to use. I have deliberately tried to keep it simple, easy and visual so that anyone can use it to install the operating system. Ubuntu installation is anyways a breeze and this guide will only make it more so.

Do not worry about the version of Ubuntu that you are installing. All versions are similar when it comes to installation. Hence, Ubuntu 11.04, 12.04, 12.10 etc will all install in a similar fashion.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Installing dLink DWA 525 Linux Drivers

If you are upgrading your desktop PCI wifi cards to faster N series Dlink cards, you will be in for a bit of surprise. The drivers provided by Dlink are still in alpha (for DWA 525 series) and are not natively supported in most Linux distributions.
So if you face this conundrum, here is a simple solution (Thanks to Aftab and Umar for providing the steps).
  • First download the drivers for Dlink DWA-525 wifi card from the following link: http://ftp.dlink.ru/pub/Wireless/DWA-525/Drivers/Linux/
  • Unzip the downloaded file into a directory
  • cd into the newly unzipped directory
  • type the following commands
    • make
    • sudo make install
  • Now edit the following file
    • vi  /etc/modeprob.d/blacklist.conf
  • Append the following line at the end of the file
    • blacklist rt2800pci
  • And now reboot the machine
    • sudo reboot
Your newly installed wifi card should now be working just fine. Enjoy surfing at 150mbps (theoretically) 🙂

Turn your Linux machine into a PDF printer

Do you want to have a PDF print driver on your Linux machine? Then follow the instructions listed below.

Usually more popular open source applications, for example, OpenOffice, have a built in feature to print directly to PDF. However, some applications like web browser (Firefox etc) may not be able to do it by default and need a pdf printer utility. Here is how one can get it installed.

  • Fire up a Terminal (command line prompt) or SSH for remote access onto your linux system
  • From your linux archive, install the CUPS for PDF from the archive. CUPS, as you all are familiar with, is the most user friendly open source printing system developed by Apple for MacOS X and Unix/Linux operating systems.
  • sudo apt-get install cups-pdf
  • Next go to your home directory (/home/your_username/) and create a folder called “PDF”
  • cd /home/your_username
  • mkdir PDF
  • Now restart your cups service
  • sudo /etc/init.d/cupsys restart

You are done! Whatever you print will by default be sent to the PDF folder on your home directory.

Geek Speak – Finding your Linux Version

Ever wonder what version of Linux is installed on your desktop. Here is how to find out:

At command line, type the following

~$ cat /etc/issue

In my case I get the following result:

Ubuntu 8.04.2 \n \l

Hence, my desktop is running Ubuntu 8.04.02

Alternatively you can also type the following:

~$ cat /etc/lsb-release


In case if you are running one of Debian releases, you can find out the Debian version on your system by typing:

~$ cat /etc/debian_release


To find out the Linux kernel on your system, type the following:

~$ uname -r


So now you can track the version of your Linux even during automatic upgrades.