Raster angle impact on FDM-based additive manufactured fluidic oscillator

The interior surface of a fluidic oscillator produced by FDM (Fused Deposition Modeling)-based additive manufacturing is associated with directional pattern corresponding to the 3D printing raster angle. present research explores impact angle ? = 0 , 45, and 90° from three commercial printers versus CNC machined oscillator. characterized using an optical measurement system. performance emanated jet assessed hot-wire anemometry downstream outlet nozzle, required supply pressure measured at actuator inlet. Printer P 1 average roughness S ? 8 . 3 ?m printer 2 29 9 inherit clear patterns while actuators printed more economical compared do not exhibit evident related 17 7 ?m. Regardless type texture, oscillators 0° provoke higher spreading accompanied lower milled sample. Strikingly, for 90 noticeably superior other surpasses in terms switching quality. Power-law fit depicted estimate each