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• Utilization of 3D Printing in Replacement of Basic Plastic Workpieces

  274-282

  Álmos Kristály

  Péter Ficzere

  Views:

  206

  In the experiment, a 3D printed cogwheel is made using the FDM technology to replace a broken part in a sewing machine. The aim of the project is to examine if a 3D model can be created and manufactured using only entry-level technical knowledge and tools. By the end of the article, it will be apparent that creating functioning plastic parts with a hobby 3D printer and basic CAD experience is very much possible.

• Examining the Movement Differences in the Behavior of Normal and Rack Railway Vehicle

  96-103

  Andor Nagy

  István Lakatos

  Views:

  279

  The rack railway is a special type of railroad. There weren”t much built worldwide, and their number is decreasing. Now, in Budapest, there is a possibility to create an interoperable vehicle, based upon the experience gained from the previously operated line, and all the research regarding its unique characteristics. One from the many important sector of its operation, is the rail/rack/vehicle system. Its mechanical model is far more complex than a traditional railroad vehicle. We will demonstrate its behaviorial differences from a traditional railroad vehicle.