![]() Limits / Fitsįor those of you who may not have dealt with Limits / Fits in a CAD environment, you typically dimension the part with a nominal dimension, and then specify a tolerance by listing upper and lower limits for the specified quantity. These model dimensions can then be retrieved and placed on the drawing. A slightly lesser known feature, is that tolerances can be used in the modelling environment as well. Inventor has these fits built in, so as long as you know what you’re looking for, it will put the correct tolerance limits on dimensions in the drawing environment, for you, once you have specified the appropriate fit. ![]() When a particular design calls for a precise fit between two components, every engineer I know usually pulls out his/her copy of Machinery’s Handbook (or Boundy) and looks up the table of Limits/Fits. ![]() To start off with though, I’m going to explain a bit about Limits / Fits for the uninitiated. In this article, I’ll explore a workflow for utilising the Limits / Fits tools in Inventor, to maximise the benefits of using an integrated CAM system for precision machining. ![]()
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