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Bachelor thesis:Camera-Based Tracking for 3D Printers ( PDF )
Author:Juranová Kateřina
Supervisor:Ing. Jiří Zemánek
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Abstract:This thesis deals with developing an application for measuring the actual position of an extruder of a 3D printer using common USB camera and PC. 3D printers use stepper motors to position the extruder which is very accurate way of positioning. Often, due to a bad design the stepper motors canlose one or more steps. When such event occurs the printing software doesn't know real extruder position and the rest of the currently created object is printed incorrectly. The purpose of the devised application is to detect this difference between real and known positions as early as possible and allow an operator to prematurely cancel the printing. The idea is to detect unique markers placed on movable parts of the 3D printer using video analysis and then calculate the actual extruder position. Possible usage of such application for real printing monitoring is also discussed and verified by measuring the actual detection accuracy.
Submited:May 2014
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