Study behavior of Geneva mechanism using 3D printing technology

Abstract

The authors developed a study for behaviour of Geneva mechanism considering different materials and technologies. Generally, there are three basic types of Geneva motion mechanisms named external, internal and spherical. In this paper the authors considered external Geneva mechanism. The design and machining of a conventional Geneva mechanism are generally well known, but there are some particularities, if we consider 3D printing technologies. Conventional, Geneva mechanisms are used to low-speed applications, or to those in which noise and vibration are of no importance. Using PLA+Copper or ABS materials noise and vibrations are reduced considerably. Also, the entire mechanism has a reduced weight. There were considered different fill factors for 3D printed parts. The experimental setup allows fast changing of mechanism parts. This research aims the study of behaviour of 3D Printed machine elements like: springs, bearings, clutches gears, bellows, diaphragms, bushes, brakes, sliders, etc developed by authors.

Innovation Process for Optical Face Scanner Used to Customize 3D Printed Spectacles

“…The most used technology is selective laser sintering (SLS), but selective laser melting (SLM) printers can also be used [ 14 ]. SLS technology uses a high-power laser beam to melt powders in successive layers, thus obtaining the desired 3D model.…”

“…The thin layers of metal powder are successively melted and solidified microscopically inside a closed construction chamber containing inert gas (nitrogen or argon). Upon completion, the 3D model is removed from the construction chamber and subjected to finishing treatment [ 14 ].…”