This video, "Wilderness Machinist," explores building a remote-controlled aluminum excavator by hand. In this video, we'll make a hydraulic directional control valve and a pressure relief valve from aluminum for a RC model. The directional control valve is designed to accommodate three hydraulic cylinders, and a pressure gauge is also built and tested along with all the components.
I also resolved the air bubbles in the hydraulic pump left over from the previous video.
The prototype for this RC excavator is a Sany SY1350H large excavator, built in 1:24 scale. The main structural components are made of aluminum, while other parts are made of POM or 3D-printed. The completed model is nearly 600 millimeters long.
This video demonstrates the machining process for the key components of the directional control valve, including:
Manifold: Machining the oil drain hole and oil return port.
Valve body and spool: CNC machining and external machining.
Drive shaft: Involves complex milling, turning, and threading processes.
Keywords: DIY, RC excavator, hydraulic directional control valve, hydraulic pressure relief valve, aluminum, CNC machining, manufacturing, modeling, mechanical engineering, hydraulic pump, hydraulic system.
