Big tools and equipment for building work are now widely available for rent. This means that an ever wider variety of dangerous kit is in the hands of amateurs in the construction trade -each of whom may have undertaken only a few weekend classes in bricklaying.
Today’s invention is therefore an instruction movie which takes the form of a helical tape of individual, stamp-sized images stuck on the outside of a cement mixer.
As the mixer rotates, a zoetrope-like silent movie, illustrating eg some of the finer points of pointing, is played. There would be a range of such movies in support of different aspects of self-build projects.