Sebastian Hirnschall

about me

Hi! I am 24 years old and currently studying technical maths in Vienna.

At the moment, I am most interested in PDEs, Numerics of PDEs and differential geometry.
The applied nature of these fields makes them a natural extension of my other hobbies: mechanical engineering, 3d printing, and electrical engineering.

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

I’m a full-time 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...

best diy motorized dslr slider with wifi for under USD 100

DIY motorized camera slider with WiFi

Building my own professional camera slider for $100!

A camera slider is a perfect tool to capture smooth video footage or a moving timelapse, but professional camera equipment can be expensive. So I decided to build my very own motorized DSLR slider from scratch. My goal was to keep the cost below $100 while delivering good enough quality for me to use the slider regularly.


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.