During use of a soil tillage machine or a sowing machine the method of analysingvideo picture sequences can characterise the movement of soil in the area of workingorgans with different working speeds and configurations of machine. Resulting statements can be madeabout: •effect of different tool arrangements, •effect of difrent tool shapes,•optimal working areas of the machine and •Prospective attrition of tools.These aspects are an important help for tool construction and tool unit optimation in the process of development.