The paper presents preliminary stand tests of a demonstrator of planetary gearing. The gearing used in the
research has been made of ABS polymer with good strength parameters.
Parts of the gearing have been created by means of FDM (Fused Deposition Modeling). The input data come from
3D CAD solid model which geometry is determined by a file of any system equipped with the ability to save in STL
format. This model is described by a grid of triangles and divided into levels (layers). Their thickness determines the
accuracy of representation of a detail curvature. The thickness of the layers is also limited by the accuracy of the
process and the equipment.
The research was conducted on a test stand designed in an open system powered by a three-phase electric motor.
The control is provided by a single-phase inverter with three outputs, which ensures full speed control. The load of the
stand is realized by an electromagnetic powder brake. The possibility to control working time lets you precisely define
the time intervals of various stages of the research. Using timer makes it possible to observe the current consumption
of the gearing and helps to establish the research process. The research at this stand allows for obtaining stable
working parameters and thus for obtaining accurate, not distorted results of the demonstrator’s operation.
The purpose of the research is verification of gear endurance calculations and verification of the design in
conditions similar to real ones.
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