Shelf life and operating quality of a product are determined by understanding its dynamic characteristics. This assignment discusses dynamic model of a 3D printer manufactured by Prusa MK3. The introduction explains the basics of mechanical oscillations backed by equations of motion, working principles of accelerometers and Fourier analysis. The methodology section of the assignment shows gradual building of numerical model of the printer from one degree of freedom model, up to final system with four degrees of freedom. Each model is graphically shown and defined by equations of motion. The experimental part of the assignment is presented at the end of the chapter.
The experimental results show the dynamic properties of the structure, which are its natural frequencies and numerical analysis gives us the stiffness properties of the elements, that are calculated in the way to return the experimentally acquired natural frequencies.
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