A private hobbyist website

with focus on CNC, electronics and software.

Wall mounted back rest

A nice add-on for my stools and dining area. I think the pictures are self explaining.


Publish date: 2015-10-16

Stool with storage

As a replacement for my broken chairs in the dinette I built four simple cubic stools with a storage compartment. It is a very simple design, still I think it is nice to look at. One stool did cost me about 43€ (new machines, tools and time not considered).

Materials for one stool


A short how-to build

If you not familiar with circular saws, glueing wood, etc. better inform yourself and practice before you start!


Publish date: 2014-12-15

Optical bench

To be able to continue with the Super8 project, I have to determine the focal length of the various lenses I got (hoping that at least one meets the requirements). So I build a simple optical bench. Thanks to the simple g-code generator, the effort to manufacture the holders was quite minimal.

The bench basically consists of:


Publish date: 2014-01-18

Vertical planter

Searching the internet I came across some sites about urban and vertical gardening. I liked the idea so I was going to give it a chance.

Review #1

After two months I can say, that this project is a success.

In this configuration, no additional watering pipe in the middle of the big one is needed. Typically I water from the top and let it seep through the soil. The last three pictures show the growth of the different plants.

One drawback: The soil shrinks and settles to much in the tubes and it is hard to keep it moist enough especially in summer.

Update - Hydro culture

To solve the problem with the dried out and settled soil in the tubes I am going to test the contruction with hydroculture.

I substitued the soil with clay granulate (2-5mm), added a small water pump and two pipes to pump up the water to the top of the two plant towers. At the top, I drilled 1mm holes into the water pipes sealed the end and formed a circle. A timer switch turns on the pump 4 times a day for 5 minutes which is enough to provide every little plant balcony with enough water (with out any plants yet). Check out the latest pictures for details.



Picture gallery

Publish date: 2013-06-09
Last update: 2015-10-16

Mini greenhouse

Fresh herbs are much more tastier than the dried ones and this little greenhouse extends the time of my herbs harvest.

The greenhouse is an add-on to the plant trough and can be removed quite easily without any tools. I used my cnc machine to manufacture the round corners of the pillars since no round pillars with the needed radius were available in the DIY market.


Picture gallery

Publish date: 2012-10-16

BMW Z3: Replacing the interior door handle

Since the basic repair instructions are available on the internet, I only want to give a hint about how to deal with the plastic bolt of the handle. This plastic bolt needs to be melted to form a kind of a rivet.


Publish date: 2012-02-27


PCB2CODE - Gerber to g-code converter for isolation routing

GitHub - Powerful collaboration, code review, and code management for open source and private projects

python.org - The Python programming language

editra.org - Editra A Developer's Text Editor

eclipse.org - An IDE for C/C++ developers

Unicodetables - ASCII + Unicode tables

Last update: 2014-04-27