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KORUZA alignment algorithm development setup
Currently, we have been working on the optimisation and development of the alignment algorithm component for wireless optical system KORUZA, responsible for fine tuning the direction of the optical...
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Plasma torch voltage measurement and height control
Our good-enough CNC plasma is being put through the paces and we are improving all design aspects. We have experienced some problems with measuring the plasma cutting voltage (arc voltage is monitored...
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Indoor KORUZA fog experiment
Wireless optical also called Free-Space Optical (FSO) systems use visible or near IR wavelengths to wirelessly transmit data and are thus susceptible to ambient influences. Temporal decrease in...
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KORUZA version 1.0 redesign
In the past years KORUZA has been iterated through a number of versions, each exploring significant updates or simplifications. With version 5 we have launched World Wide KORUZA experiment and have in...
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Hand powered lamp post climbing contraption for wireless network deployment
We are setting this challenge to mechanical engineering applicants to our vacancies call. Anyone is however welcome to send in their suggestions and we will make prototypes of the best systems.Hand...
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Outdoor KORUZA fog experiment
We have proposed and prototyped an artificial fog experiment to evaluate its impact on wireless optical system KORUZA, more specifically the correlation between the presence of aerosol particles in the...
View ArticleUseful source implementation DocuBricks and OpenPlant Open Technology Week...
Open Technology Week is an annual effort of OpenPlant and OpenLabTools initiatives of University of Cambridge to bring together scientists primarily with backgrounds in plant sciences and biology that...
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KORUZA 1.0 announcement - Wireless Battle of the Mesh presentation
In the beginning of the July the whole KORUZA system has undergone some significant changes in the design as well as in the mechanical and electronical structure, resulting in the new version 1.0 of...
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GoodEnoughCNC Mill
After we successfully built a working prototype of the plasma cutter, we took the next logical step and started to develop an open source, easy to build, multi purpose CNC milling machine. The main...
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KORUZA alignment algorithm - revised
With development of the new KORUZA 1.0 prototype, offering greater flexibility in the unit adjustment, collimating process and pointing accuracy, we started developing a new version of the so called...
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CNC milling machine - update
Last week we finished designing the frame and X, Y axis for CNC milling machine, so we started with assembly of the main frame. The biggest challenge in constructing was to ensure the accuracy of the...
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GoodenoughCNC Plasma cutter construction update
The past week we have focused on finalizing the GoodenoughCNC Plasma cutter, thus working towards the release. After extensive testing and evaluation of several options we optimized Z axis dimensions...
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NIR Measurement Device - incident angle test
Last week we were notified that our article “Low-Cost NIR Measurement Device”, about development and use of the NIR pixel module, was accepted to the 4th International Workshop on Optical Wireless...
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Universal unipolar motor driver for KORUZA
Nearing the release of KORUZA 1.0 wireless optical system the standalone system modules are nearing completion. Automated alignment uses low-cost 24BYJ48-03 stepper motors, similar to more popular...
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MiniCNC Assembly
Following our habit of making things simple, affordable and good enough, but nevertheless hi-tech and reliable, we are working with PlanetCNC to preparing their MiniCNC machine for open hardware...
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Development of the Next Generation Open Hardware 3D Printer Troublemaker
Our first open-source hardware tool was Troublemaker 3D printer. In the last year our Troublemakers made a lot of prototypes and parts for our wireless optical system KORUZA, GoodEnoughCNC machines and...
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Accuracy consideration for different drilling methods
Since the accuracy of drilling and locating the center of the holes is crucial in the construction of CNC plasma cutting machine and CNC milling machine, we decided to make a short guide on how to...
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High precision ceramic paste extruder
Ceramic objects are waterproof, very rigid, stiff and able to stand extremely high temperatures, which gives them a wide spectrum of applicability. Mostly one associates ceramic with tableware (plates,...
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KORUZA alignment algorithm - Software in Loop testing
Recently we have started with the development of a revised version of the alignment algorithm, designed to automatically fine-adjust pointing direction in order to optimise the link margin, either...
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KORUZA at IWOW2015
Our wireless optical system KORUZA has been presented at International Wireless Optical Workshop 2015 in Turkey along with the scientific paper Low-Cost NIR Measurement Device detailing the integration...
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