About Cvern

Sašo "Cvern" is a new media artist who lives near the city of Ljubljana, the capital of Slovenia. He worked for many years as a graphic designer, software and web developer and has always been dedicated to the different type of art and technology. Sašo has always been amazed about the string art. He is best known for his straight line images, images that are created using one continuous line. He create depth in artworks by overlapping lines of thread. He is an individual artist – handcrafting art at his workshop. He make beautiful and unique art, handcrafted only with a single sewing thread.

Some collections are limited editions, but most of them are one of a kind.

The Story

I have always been in love with different type of art since I was a little child. Art brings a various type of mood to life. Mostly I have been amazed about abstract, geometrical and line art.

Among all the forms of crafts, the most popular to me was the string art with a thread and nails. The realisation that you can create an image only by straight lines is incredible. There are really no limitations to the designs you can make using this art technique. The beginning of the whole process was very difficult but encouraging and inspiring. I started with simple patterns and soon moved to more complex and unique images.

To achieve the more detail image with a technique of line art I started with a basic math and then created a simple code, from where with the help of a computer I managed to produce more specific part of an image. By overlapping the lines of thread I achieved an illusion of depth. Where the number of lines were less intersected, the white color was more expressed, while at the points where lines were more intersected, the shade of color was darker.

At first I was testing different nail positions and frames with a different number of nails. After days of experimentation, thinking and searching for the ideal solution, learning at mistakes, the moments of frustration and excited moments due to progress I started achieving the right sequence, depth and the detail of image. Soon, the entire workflow was done through a specific algorithm I made, which guided me from the beginning till the end of the process. Building an algorithm itself was not so difficult, the more difficult was to create the individual functions within the algorithm, which contributed that the final picture will look in as a proxy of the original image. Though straight lines are formed by the string, the slightly different angles and metric positions at which strings intersect gives the appearance of Bézier curves. Bézier curve are obtained from strings based on two intersecting segments. Despite the fact that the image was well-visible through the square frame I decided to go for the round frame, especially because off the easier way to work.

Things in life that are worthwhile are inherently full of challenges. Art is no different. "When you buy something from an artist you're buying more than just an art. You're buying a hundreds of hours of experimentation, frustration and moments of pure joy. You're not buying just one thing, you are buying a piece of a heart, a piece of a soul... a small piece of someone else's life."

The Idea of image depth and a line sequence was inspired by reddit post (Marek Gibney - link) and some other string artists: Richard Sarson, John Eichinger, Kumi Yamashita,...


Round Frame

Close detail / Round frame / Black nails

Aluminum frame with black nails inserted and sticked.



Close detail / Process / Drilling

Each hole is drilled slowly and very carefully.

The Process

Production begins with a precise and slow drilling in aluminium or wooden frame, followed by inserting pins and fastening. Once the framework is prepared, there comes the interesting and at the same time the most difficult part of the process.

By overlapping lines of thread I achieve the right shade of colors and depth.

Several thousand meters of thread is consumed for every image. Using the technique of straight lines, there can be made any kind of picture.