Etelburg - r.feather fountain pens

Created for those who make the decisions and change the world, not with words but signatures, r.feather is the most complex writing instrument we have ever made. With its interchangeable nibs, special ergonomic design, adjustable weight balance, and smooth metal surface that seamlessly fits your hand, it is the ultimate pen for memorable moments.

Etelburg r.feather modular luxury pen

Widely adjustable
For your max comfort

r.feather is a unique, professional pen with its interchangeable nibs and tips, special, ergonomic design, and adjustable weight balance, ensuring long and comfortable use.

Interchangeable nibs - use them as you wish or as the moment requires

The cartridge with the custom colour ink mixed by the desktop unit or the ordered can be easily inserted into the pen with an adapter. Thanks to its large capacity, the pen allows long-term use including drawing, writing, calligraphy and painting.

The nibs are made of the currently available highest quality steel but the pens can also be used with gold, flexible and music nibs as well. The pens are made of Perunal, which is high-strength aluminium. Perunal is primarily used in the aircraft industry. Our writing instruments are anodized to offer a wide variety of colours and to add extra protection to the surface.

Aviation-industry material - for lifelong use with exceptional convenience

The design of the unusually sized writing instrument serves exclusively ergonomic and aesthetic purposes. The pen’s grasping points are positioned on the central unit. The variably sized, triangle-shaped grip unit allows users with different hand sizes to find the most comfortable grip and writing angle. To find the best writing angle easily, you can rotate the nib with the writing block along the longitudinal axis. As the large capacity is positioned in the pen’s weight centre, the weight of the pen’s barrel allows the centre of gravity to be adjusted easily and effectively supporting long-term use.

Modular writing system - to find the perfect balance and grip for your hand size

The capacity of over 1.6 ml of our tempered glass, laboratory-certified cartridges is four times higher than that of standard fountain pen cartridges.

400% higher ink capacity than standard

Etelburg r.feather pen

The development of the r.feather

The idea

We began the project with the description and visualization of the basic idea, then we sectioned the project into its major parts.

As the first step, we named the different parts of the project.

We started with the parallel development of the ink mixing device and the application.

Etelburg r.feather pen design

Research, design and development

Since the r.feather is a multipurpose writing instrument, we needed to define all the functions and criteria.

After a relatively short sketch session, we created the three-dimensional digital sketches and created numerous prototypes with rapid prototyping technology.

We started the basic experimenting with the 3D printed prototypes. We defined the length of the two different length modulations (short barrel and long barrel/portable and pro writing instruments). After this we started the long process of building up the supply chain, we needed to produce the r.feather. We tried to keep the potentially highest manufacturing percentage in-house, but there are some parts we purchase from other manufacturers. It was crucial to find the proper suppliers, just for testing and integrating their products. After this process, we were ready to produce the first, fully functional prototypes made out of metal.

Etelburg r.feather structure


We CNC milled three Perunal aluminium prototypes. Thanks to the detailed preparation, all of our parts were compatible with the parts that came from outer suppliers. We could also test the different surface treatment methods too.

The active and long-term testing processes of the r.feathers began. We collected a high amount of data based on the test experiences, so we were able to define some changes to make our writing instrument better. We turned back to rapid prototyping again to validate the defined changes. After we agreed on the new design and functional solutions, we started the production of 10 prototype sets and the final round of testing. Both our Hungarian and International partners played a key role in this section.

The r.feather worked flawlessly. We defined all the modulations and we were able to pair it with the ink mixing device, which was ready at the same time.

At the finishing of the section, we defined all the final specks of the standalone r.feather - Colors, functions, and modulations.

We started to design the packaging, the user manual and all the necessary accessories that come with the r.feather.

Etelburg r.feather production


The r.feather is a unique and very complex writing instrument in the world of pens. That means of course, that its manufacturing processes are also very complicated. The preparation process required very intensive cooperation between the research and development team and the production.

The Perunal, which is the primer material of the r.feather is a very hard material. The manufacturing steps of the aluminium parts are optimized for both 3 and 5-axis CNC machines. To guarantee a long lifetime, we are using stainless steel at the part joints.

The long preparation phase was followed by the actual production. Control and keeping the quality of the certified material was a major task during the entire process.

Etelburg r.feather manufacturing

One production run produces 500 pieces. Every single aluminium part is hand polished. Our black r.feathers have a silky matt finish. We separate them and gave them a pearl blasting surface treatment.

The next step is logo engraving. At this point, every numbered r.feather is treated and packaged as individual units.

The next step is the anodizing process. This defines the colours of the r.feathers and creates a protecting coating on the entire body of the writing instrument.

The final assembly and the packaging of the first 500 pcs were made exclusively by hand.

Designed by
Gabor Megyeri

Having started his career at Montblanc in 2007, Gabor Megyeri made a successful debut in the world of premium products by creating unique writing instruments.

He also worked for premium brands like Montegrappa, Bugatti, and Tibaldi where pens were sold for up to six figures.

Gábor Megyeri industrial designer

The most well-known writing instruments by Gabor:

  • Bugatti Chiron Fountain Pen Limited Edition
  • Bugatti Pur Sang Duotone
  • Montblanc Mark Twain Writers Limited Edition
  • Montegrappa Q1
  • Montegrappa UEFA 60th Anniversary Series

In 2017, he teamed up with his cousin, Peter Megyeri and started to build the brand Etelburg with one goal: creating innovative products that retained the values of the past while making them applicable in the future.

With r.feather we ask you to join our journey that defines the writing instruments of the future.

r.feather is the pen for your glorious moments

Etelburg r.feather pens in different colours