Zebra F-301 ballpoint pen hack

Without further due, here is a hack replacing the Zebra F-301 F refill with the one from Uni-ball Jetstream 0.5mm. Get the smaller Jetstream refill, usually the one to refill the Uni-ball multipen.

See that the Uni-ball Jetstream refill is the same length as the Zebra F refill.

See that the Uni-ball Jetstream refill is the same length as the Zebra F refill.

The next step is to open the black cap from the F refill. This is easily done using your nail. Then you’ll have to take out the refill from inside the barrel. This also can be done by hand, just push down-up.

Push the inside, from the tip towards the upper end.

Push the inside, from the tip towards the upper end.

Here is the F refill and its barrel.

Here is the F refill and its barrel.

Next, you’ll have to do a hack to put the Jetstream refill into the F refill barrel. You can use your creativity. What I did was cutting a bit of the black cap from the F refill, and some part of the Jetstream plastic (same length), and then wrapped the middle with some tape, to keep its position in the barrel.

You have to sacrifice the black cap here. However you can do other hack, limited only by your creativity.

You have to sacrifice the black cap here. However you can do other hack, limited only by your creativity.

Now put them altogether into the F-301 body, and Voila! This is better and cheaper than my Parker.

The best pen (gel) I have used so far.

The best pen (gel) I have used so far.


[Lagu] Arti KehadiranMu

JalanMu tak terselami
Oleh setiap hati kami
Namun satu hal ku percaya
Ada rencana yang indah
Tiada terduga kasihMu
Heran dan besar bagiku
Arti kehadiranMu slalu
Nyata di dalam hidupku

Penyertaanmu sempurna
RancanganMu penuh damai
Aman dan sejahtera walau di tengah badai
Ingin ku slalu bersama
Rasakan keindahan
Arti kehadiranMu Tuhan

Jer 29:11 For I know the plans I have for you,” declares the LORD, “plans to prosper you and not to harm you, plans to give you hope and a future.

Guess What Movies?

Guess What Movies from These IconsSolving puzzle is one fun way to train our brain. Here are what my friends and I have been able to answer so far.

1. Life of Pi
3. Harry Potter
5. Brokeback Mountain
6. Pearl Harbour
7. Cinderella
8. Thor
9. Planet of The Apes
10. Titanic
11. The Devil Wears Prada12. Eat, Pray, Love
13. E.T.
14. The Ring
15. Edward Scissorhands
16. Forrest Gump
17. Babe
18. Kungfu Panda
19. 27 Dresses
20. Lost in Translations
21. Teenage Mutant Ninja Turtles
22. Men in Black
23. Happy Feet
24. 2012
25. Independence Day
26. Up
27. Lord of The Rings
28. Final Destinations
30. American Pie

So, help us!

An Idea: How Can Linux Win More Users?

I am a full time working engineer. In my spare time, I like to try new things, including Linux. It took me more than 4 years to fully using Linux on my computer, on and off. There are several reasons: (1) Installing Linux and making all hardware work took much time, which I don’t have, (2) I can’t find a truly powerful MS Excel® alternative in Linux. That’s true up to now.

For reason number (1), it is not true these days, at least with certain distros. I bought a cheap ($200) used Thinkpad® X100E and replace the OS with Crunchbang Linux “Waldorf”.


Unfortunately, for reason number (2), it is still true. We have to admit that in this world, there are many MS Excel® power users, consultant, developers, and add-ins. They solve problems, create businesses, and produce value. It is powerful because there are so many stakeholders and business created over MS Excel®.

I use LibreOffice-Calc (version 4.1.5), as it is native in Linux. In my experience, it is still sluggish compared to MS Excel®, e.g. when I press-and-hold my arrow key to move between cells, the screen refresh is not as smooth as in MS Excel®. This is true especially with out-of-the-box configuration.

Up to now, in my short period learning to use Calc, one of the advantage is its Solver, which has more decision variables limit (in MS Excel®, you have to pay an add-in to get same capability).

A good OS is one thing. A good spreadsheet with many power users, business tool, plug-ins, are as important, if not more.

Microsoft® will not port MS Excel® to Linux, because they know, it is one of the softwares that keep its users from migrating. As for me, I’m trying to live with Calc as long as I can.

[Series] Tips for Learning

I’d like to start a series of learning tips. I hope this is useful for you and for me as reminder. So here is the first tips.

Declaring or put a goal like (for example) I’d like to learn programming, is often and most likely useless. One should accomplish something to effectively learn. The result may not be perfect but in the process, we learn. In the example of learning to program, one can set a goal to accomplish a simple software written in the program that she/he wants to learn.

In my case, I set to learn to use a numerical porous media simulator. I have installed the software, download the manuals. But I cannot make progress since I didn’t set a goal to accomplish something.

See you in the next tips.

Careers for INTP Personality Types

Whether you’re a young adult trying to find your place in the world, or a not-so-young adult trying to find out if you’re moving along the right path, it’s important to understand yourself and the personality traits which will impact your likeliness to succeed or fail at various careers. It’s equally important to understand what is really important to you. When armed with an understanding of your strengths and weaknesses, and an awareness of what you truly value, you are in an excellent position to pick a career which you will find rewarding. INTPs generally have the following traits:

  • Love theory and abstract ideas
  • Truth Seekers – they want to understand things by analyzing underlying principles and structures
  • Value knowledge and competence above all else
  • Have very high standards for performance, which they apply to themselves
  • Independent and original, possibly eccentric
  • Work best alone, and value autonomy
  • Have no desire to lead or follow
  • Dislike mundane detail
  • Not particularly interested in the practical application of their work
  • Creative and insightful
  • Future-oriented
  • Usually brilliant and ingenius
  • Trust their own insights and opinions above others
  • Live primarily inside their own minds, and may appear to be detached and uninvolved with other people

INTPs have a special gift with generating and analyzing theories and possibilities to prove or disprove them. They have a great deal of insight and are creative thinkers, which allows them to quickly grasp complex abstract thoughts. They also have exceptional logical and rational reasoning skills, which allows them to thoroughly analyze theories to discover the Truth about them. Since the INTP is driven to seek clarity in the world, we have a happy match of desire and ability in this personality type. INTPs will be happiest in careers which allow them a great deal of autonomy in which they can work primarily alone on developing and analyzing complex theories and abstractions, with the goal of their work being the discovery of a truth, rather than the discovery of a practical application.

The following list of professions is built on our impressions of careers which would be especially suitable for an INTP. It is meant to be a starting place, rather than an exhaustive list. There are no guarantees that any or all of the careers listed here would be appropriate for you, or that your best career match is among those listed.

Possible Career Paths for the INTP:

Scientists – especially Physics, Chemistry
Strategic Planners
University Professors
Computer Programmers or Systems Analysts
Technical Writers
Lawyers / Attorneys
Forensic Research
Forestry and Park Rangers

Attribute to “High-Reliability Organization”

Quoted from the book Judgment Calls: 12 Stories Of Big Decisions And The Teams That Got Them Right, Chapter 1: NASA STS-119–Should We Launch? Case

In a recent study, Karl Weick and Kathleen Sutcliffe note five attributes of high reliability organization (such as firefighter team, hostage negotiation team, etc. because their price for failure is high):

  1. Commitment to tracking small failures
  2. Ability to recognize and understand complex issues
  3. Real attention to frontline (operational) workers
  4. Ability to learn from and rebound from errors
  5. Ability to improvise effective response to crisis

A major barrier they constantly fight to overcome is complacency and arrogance.