Sebastian Hirnschall

about me

Hi, I'm Sebastian. I'm 21 and I currently study Technical Mathematics at the Technical University of Vienna.

At the moment I am most interested in linear algebra, topology, programming, electrical engineering, 3d-printing and photography.

Take a look at my blog below or download the papers I wrote in school and at university to find out more about my interests.

I’m a fulltime student, however I am open to exiting part time job opportunities, with my Curriculum Vitae available upon request. Please get in touch, it would be great to hear from you.


skill circle
skill circle
skill circle
skill circle
skill circle
skill circle

other resources

PDF download
my papers.
Where I publ
ish my code.
Visit GitHub
Models for 
Visit Thingiverse


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Coding Challenge #2: Maze Generation

Generating a maze in javascript

So this weeks challenge is generating a maze with javascript. But why would you do that?
In my opinion it is an easy and interesting way to get familiar with a new programming language or better at programming in general.

We'll generate the maze using the random walker from the last challenge. But if it tries to visit a point twice it will...

DIY camera slider with arduino

Building my own professional camera slider for $50!

A camera slider is the perfect tool to capture smooth video footage or a moving timelapse, but professional camera equipment can be quite expensive. So I decided to build my very own motorized slider from scratch. My goal was to keep the cost below $50 while delivering good enough quality for me to use the slider regularely.

I started out by drawing a simple electrical circuit to control the steppermotor and dslr.


resulting planetary gears

Designing (Non-circular) Gears for 3d-Printing

So how do you calculate circular and non-circular gears?

I like designing my own models. However until now I always shied away when an idea of mine required the use of gears. Especially non-circular or inner ring gears. Well, anything you can't easily download from the web.
I finally found the time to take a closer look at what a gear is from a mathematical point of view and how one can be represented and constructed easily using only a compass.

Download PDF


If you would like to request my Curriculum Vitae or would like to send me some comments about my work, just get in touch using the Contact Form, it would be great to hear from you.

Please leave your name, email address and message and I will reply to you as quickly as possible.
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