Abstract Scope |
In this study, the vibration analysis of four commercially available fused deposition modeling (FDM) 3D printers under different states of operation is investigated. Using an accelerometer attached at convenient locations near the nozzle mounts, the vibration signals are collected from five machine states, namely, normal extrusion, blocked nozzle, semi-blocked nozzle, material runout, and loading/unloading. Analyzing the signal metrics like root mean square (RMS), amplitude and peak frequency, the difference in vibration signature is observed for the different machine states. Furthermore, a comparative analysis of the 3D printers demonstrates the varying degrees of suitability of this monitoring approach. Results from this study show that vibration monitoring is an effective tool in the manufacturing process by providing insight into the machine condition during 3D printing. |