Applied Motion Study
A Collection Method to industrial Preparedness

MOTION MODELS 123 model, upon its completion, is painted black. The spots upon the chronocyclegraph are repre- sented by spots painted upon the model. These spots are made of white paint, shading gradually through grey to black, and when finished resemble very closely in shape the pointed spots seen upon the chronocyclegraph. The motion model, which has now become a chronocyclegraph motion model, may be fastened against a cross-sectioned background and photographed from exactly the same viewpoint from which the chronocyclegraph was taken. The photograph of the model and the chronocyclegraph record may then be com- pared. Unless they are exactly similar the mo- tion model is not considered a complete success. In cases where the motion cycle recorded is com- plicated, it is of great assistance to take chrono- cyclegraph records from several different view- points, as such records assist in making the mo- tion model more perfect. In some cases two or more viewpoints can be obtained by mirrors. The motion model has all the uses of the chro- nocyclegraph as a recorder of standards. In ad- dition it has its teaching uses. The first of these is as assistance in visualising the motion path.