摘要
This lecture discusses an error budgeting approach to precision machine design. Starting with the idea of error apportionment as a means to guide development of the overall machine and its component axes, first order analysis is used to fill out a design to meet the required accuracy goals. The initial focus is on geometric, load induced, and thermal errors of the machine in the initial design phase. As the design progresses, an overall error budget is created using a spreadsheet-based model provided. This method helps the designer with selecting machine configurations and components, and tradeoffs to meet the desired performance specification for the machine.
