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Precious Plastic is an open hardware plastic recycling project and is a type of open source digital commons project. [12] It relies on a series of machines and tools which grind, melt, and inject recycled plastic, allowing for the creation of new products out of recycled plastic on a small scale. [ 13 ]
As open designs, all of the designs produced by the project are released under a free software license, the GNU General Public License. [ 1 ] Due to the ability of these machines to make some of their own parts, authors envisioned the possibility of cheap RepRap units, enabling the manufacture of complex products without the need for extensive ...
Dave Hakkens (born 1988) is a Dutch industrial designer.He gained fame with his two graduation projects: Phonebloks, a concept for modular telephones, and Precious Plastic, a movement to develop and promote machines and organizations for plastic recycling.
Electromagnetic sensors rely on the vehicle moving slowly and smoothly towards the object to be avoided. Once an obstacle is detected, the sensor continues to signal the presence of the obstacle even if the vehicle momentarily stops. If the vehicle then resumes moving backwards the alarm signal becomes louder as the obstacle is approached.
Josef Průša was a core developer of the RepRap project who had previously developed a PCB heated "print bed". He adapted and simplified the RepRap Mendel design, reducing the time to print 3D plastic parts from 20 to 10 hours, changing to the use of two Z-axis motors to simplify the frame, and including 3D printed bushings in place of regular bearings.
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Google on Monday removed derogatory reviews about McDonald's after the suspect in the killing of UnitedHealth executive Brian Thompson was arrested at its restaurant in Altoona, Pennsylvania ...
Gamma-ray radiography systems capable of scanning trucks usually use cobalt-60 or caesium-137 [6] as a radioactive source and a vertical tower of gamma detectors. This gamma camera is able to produce one column of an image. The horizontal dimension of the image is produced by moving either the truck or the scanning hardware.