> to make this in an area with less infrastructure you might use a template and carbide gas torch to cut

Metal work seems very expensive in some places. In a 2025 paper [1], a cooking pot looks like several aluminium rings welded together, about 50 cm tall and 70 cm in diameter, is 416 USD in Ghana, which is one of the destinations of this hand-crank washing machine.

1. https://www.sciencedirect.com/science/article/pii/S266711312...