Abstract :
The field of tolerance technology is defined and a programme of research is outlined, relating to the three main areas of tolerance technology, namely, geometric analysis, cost analysis and design communication. In this article the first results of research into the geometric analysis of a part assembly of a telephone dial is presented, and a method of applying probability to the tolerance summation is demonstrated. The resulting part drawings are prepared using methods given in the new Australian Standard for Drawing Practice. In the discussion, the direction of future research in this particular area of analysis, is indicated.