The purpose of this research is to make a mini laser cutting and engraving machine. The system in this research will be controlled by LinuxCNC through parallel port. The variance of distance due to…
Clitoria ternatea (CT), Ipomoea tricolor (IT), Ipomoea batatas (IB), Hibiscus rosa-sinensis L. (HR), and Ruellia tuberosa (RT) were used as the natural anthocyanin sources. The anthocyanin extract …