Sun Tracker in progress

 

I´m working on mechanical and optical system that is going to move plane towards the sun during the day and use it´s energy to produce electric power, that may charge your phone for example . It might also work opposite way and illuminate interior during the cloudy days or at night, as it would sun if it could. Now it is in the stage where the mechanical components does work in small scale, and I´m able to rotate the plane 360° around in angle up to 45°. Next step I´m working on is to scale up the whole concept and to design the final form.

New parabolic bowls made on IGS 2015

These are my new bowls I designed in occasion of IGS (International Glass Symposium) 2015 held in Nový Bor this autumn. They were made in participation with company TGK. Bowls are made of two sheets of transparent clear or colored glass, slumped in to hollow circular mold, and connected with transparent silicone. One type is also coated by aluminium vapors inside.

 

3D printing

 

You might have seen some of my objects printed out of ABS material already here at my website or at my FB account.

There is some more info about this new equipment in my workshop. I ve´been already using this printer for more than half of the year, and I had to make quite many improvements before the results came out regulary in a good quality. Mankati FullScale is solid FDM 3D printer with metal frame, ballscrew at Z axis and with X,Y,E build similar to the american Ultimaker, but this one has two extruders in the basic composition. I bought it from first user(profesional 3D print company), where they tested it, if it suits for their work. They had to make already some improvements before I bought it, and gave me some advice when I needed it in the begining, they also undergo me licence for software and recommended some other to use. Printer had some Achilles´ heels  from the beginning, first there were problems with original hotends (0.4mm for 3mm fillament), so guys using it before me, replaced them with new one´s made of stainless steel from Prusa.  But still it was quite incomfortable to replace them if fillament got stuck and there was also problem with leveling of one extruder to the other one. So I ended up with settings improving this fault. First I added screws at hotends, threaded holes in to the head to manage leveling, and threaded the holes on the top of the head as well for  aditional ftpe tube push fit connector that ensure easy access from the top in to the hot-end it self. With this betterment I am able to keep the hot-ends warm on the place and I need just to drill off stuck plastic from inside the nozzle with 3mm in dia long drill bit by hand. Than I can guide filament back to the hot hole and push by hand on the rod to squeeze out some plastic. That´s all! Now I can tighten back the connector of the tube and continue printing.

…. article in progress

Hooray!!! Graduated at AAAD

 

I´m pleased to announce that I just finished my master studies at AAAD / UMPRUM in Prague.

Here is a description of my diploma work I showed at the graduation show in the “Glass studio”.
My work consist´s of three separate parts, but all of them are connected to the topic, which is “Science in the field of applied arts”.

This theme came out from my interest in popular science I have since 2006. I have red many books focused at the theoretical subjects from many different fields of science. In general my favorites are Math, Theoretical Physics, Biology and new Advanced Technologies. More specific these are String theory, Hyperspace, Deterministic chaos, Quantum mechanics, Theory of relativity or space division (Platonic / Archimedian solids, their higher dimension representatives),Crystallography (tiling and lattices).

Three projects I showed at graduation show are Fullerene doses, Lindemayer System decorative drink set and Phyllotaxis lighting. Their first word in name came from the subject of inspiration for a given case.

#1 Fullerenes are doses which were designed for press molding and machine cutting at Czech company BOMMA. The whole pattern which determinate’s mathematical formula, came from the space division of geodetic domes. These structures “Fullerenes” are named and best known because of American architect Buckminster Fuller, who used them during post WW2 period, for EXPO pavilions and in his visions for future architecture. The natural structures Fullerenes were named because of their popularizer and does use the same geometry for carbon molecules. They were predicted  in 70’s and discovered during 80’s.
#2 Drinking set inspired by Lindenmayer’s systems, is composed of six types of glasses for different types of wines, water and beer, in addition, there are jug for water or beer and carafe for wine. Whole set does use historical look with plant illustrations on it. This decoration looks to fit the historical period, but it’s sandblasted decors are based on the mathematical graphical algorithm of Lindenmayer’s systems, they are typically used for computer modeling of plants. This method of modeling works on the principle of fractals and it is possible to generate natural species as well as artificial ones.
The formulas and variables used for generating exactly these plants were sandblasted on the foot of each single glass. This was made to surprise the user, because these at the first sight poetic looking plants waving in the summer wind, can be mathematically described by simple formula.
#3 The last project is Phyllotaxis, this design was made in cooperation with Czech company Lasvit. This was planned to be a kinematic lighting sculpture with physical glass mirror triangles move-able in one direction to make an animation all togeather. The whole concept is based on 3m in diameter parabolic shape divided in to triangles 600 triangles. The division came from phyllotaxy, the mathematical model of the leaf and seed placement in the blossom. This simple formulas does use Fibonacci sequence numbers and hyperbolic spirals in opposite directions to generate the most efficient division of the plane during the growth.
For designing all of these three projects I used new promising technique of parametric modeling in Grasshopper plugin for Rhino 5.0 CAD program.
This method allows me to easily build-up a program made of structure of modules which determinate’s the shape trough variables in it, so you can easily and precisely change the whole setup without manual modeling.

#1 Fullerene doses

247

Fullerenes are doses which were designed for press molding and machine cutting at Czech company BOMMA. The whole pattern which determinate’s mathematical formula, came from the space division of geodetic domes. The concept behind geodetic domes is in subdivision of triangular faces of icosahedron in to higher number of sub triangles. These structures “Fullerenes” are named and best known because of an American architect Buckminster Fuller, who used them during post WW2 period, for EXPO pavilions and in his visions for future architecture. The natural structures Fullerenes were named because of their popularizer and does use the same geometry for carbon molecules. They were predicted  in 70’s and discovered during 80’s. For designing of this project especialy I used new promising technique of parametric modeling in Grasshopper plugin for Rhino 5.0 CAD program. This method allows me to easily build-up a program made of structure of modules which determinate’s the shape trough variables in it, so you can easily and precisely change the whole setup without manual modeling.

 

 

 

 

 

#1.1 Augmented Reality Fullerene Android App

 

Here you can find links to download app’s for Fullerene Augmented Reality Project, it works for mobile devices with OS Android. You can download whole collection in .ZIP format, or single app’s here.

Download the file in to your device, extract the content (use WinZip in case of .ZIP extension). You might need to allow installation from unknown source before installation, install the app in to your device and run it. Each app does contain one virtual object in it, for another object run different app. To see the object content on your device’s screen, spot your camera on to the QR bar code lower at this page, or at the cube in the diploma exhibition. There is also possibility to download unfolded cube or square here, so you can print and make your own target. Just keep in mind, that the cube or square side must be exactly 10cm W/D/H to keep object in the correct dimension / proportion.

Applications were made in the free software Unity 5.0 + Vuforia SDK 4.2. in may 2015.

Zde najdete odkaz na stažení aplikací k projektu Fullerene pro mobilní zařízení s OS Android: všechny pohromadě ve formátu ZIP, nebo jednotlivě ZDE.

Stáhněte soubor na zařízení, extrahujte obsah (použijte WinZip pouze pro rozbalení balíčku s příponou .ZIP). Před instalací pravděpodobně budete muset v nastavení povolit instalaci od neznámého zdroje na vašem zařízení, poté instalujte požadovanou aplikaci. Spusťte aplikaci a zaměřte kameru na QR krychli umístěnou ve výstavní expozici, anebo zaměřte na níže umístěný QR kód pod tímto textem. Každá aplikace obsahuje jednu tvarovou variantu virtuálního obsahu, pro zobrazení dalších, spusťe další aplikaci.

Pro účel vytištění jsou zde ke stažení klíčovací terče: rozvin krychle(A2), případně její jedna strana(A4) ve formátu PDF+JPEG, mějte na paměti, že pro správné zachování měřítka 3D objektu je nutné zachovat rozměr strany čtverce nebo krychle100mm.

Aplikace byla vytvořena v květnu 2015 ve volně šiřitelné verzi software Unity 5.0 + Vuforia SDK 4.2.

APPS:

A_opened
A_closed
B_opened
B_closed
D_opened
D_closed

 

 

 

#2 Lindenmayer System drinking set

 

Lindenmayer system is algorithmic graphic way, how to describe plant growth and it’s development in time.

The mathematical formula of L systems is very simple, the primitive expression is used in loop in combination with some variables such as length of increment, angle of increment or number of loops.

The basic expression might look something like this:
p=0.10;0.18;0.28;0.30, X→X
n=12;10;8;6, X→F[+F+X]X[-X+F]// [+F-X]X[-X-F]F
δ=21;19;14;8°, F→FF////

I used these patterns of artificial plants as sandblasted motive on my glass goblets and carrafe in the collection of drinking set.
Drinking set inspired by Lindenmayer’s systems, consist’s of tree types of goblets for different types of vine and two types of glasses for water and beer. In addition, there are jug for water or beer and carafe for wine. Whole set does use historical look with plant illustrations on it. This decoration looks to fit the historical period, but it’s sandblasted decors are based on the mathematical graphical algorithm of Lindenmayer’s systems, they are typically used for computer modeling of plants. This method of modeling works on the principle of fractals and it is possible to generate natural species as well as artificial ones.
The formulas and variables used for generating exactly these plants were sandblasted on the foot of each single glass. This was made, because these at the first sight poetic looking plants waving in the summer wind, can be surprisingly mathematically described by simple formula.
2.4

TOROID

This is a long-time exposure photography of Toroid light sculpture.

Toroid 1.1
TOROID, Jakub Petr, 2013

Toroid is 4D, 3 meters in diameter, real-time light drawing sculpture. It uses programmable electronic-motors to fast spin steel arms in two axes at the same time.
On the end of the second arm, there are placed 3 LED´s (RGB) those are programmable too, they are doing continuous line drawings.
The shapes of the curves are changing accordingly to the ratio of the speed of those two motors, thay are all the same shape, just rotated of angle 120 degrees from the top view.

By changing the speed and ratio, the figure goes trough the rational proportions (1:1, 2:1, 3:1, …)=harmonic and stable.
If the ratio is a bit out of this exact ratio it starts slowly rotate in one direction left/right depending on, if it is slower or faster than the other motor.
But the rest of the states, nearly all the rest are quasiperiodic states which looks random and chaotic to the naked eye.
The most interesting for me is the fact, that it must go through the chaotic states before it can appear and slowly stop it in those which are hamonic, than slowly disappear again and so on.

This interdisciplinary sculpture was made on the occasion of my first own exhibition, made in cooperation with Start Up program of GHMP gallery in Prague, at “Galerie u Zlatého Prstenu”, on June 2013.

 

TOROID VIDEO, GHMP

 

Toroid, 2013  2.3 Toroid, GHMP-Zlatý prsten, 3m

 

Toroid test, 2012, 1m  1.5 Toroid, prostorové kresby led diodami na anuloidu,model 1m, 2013  1.6 Toroid, prostorové kresby led diodami na anuloidu,model 1m, 2013

String


String is 5 meter long light sculpture based on spinning electro-luminiscent wire between two electric motors, all controlled by microcontroller Arduino. The string is changing shape in time, because of different tension when the speed of motors change. That makes rotary sinus curve, the number of amplitudes and nodes depends on the speed of motors thus tension. It is possible to stroboscopically flash the wire at the same position and visually stop the sinus curve or intersection of sinusoid at one place. Idea of whole concept came from my interest about science, especially theoretical physics and it´s concept of String theory in this case. Which says that everything is made of vibrating strings or rather membranes at multi-dimensional (10/11) space-time. It means, that different properties of mater, antimatter, energy and so on, are just different frequencies. It was made in june, 2012.