Software

Checking fit

Checking fit of machined parts

If you have two or more parts that must fit together you will want to make sure that the parts fit properly at design time.

Here are some tips that can help you make sure everything fits together properly:

  1. Make comment copies as follows:
    1. Copy the lines of one part.
    2. Paste onto a drawing of another part.
    3. Change the lines to Comments To Myself.
    4. Slide and/or rotate the comments lines into position to check fit.
  2. For parts that rotate together use the rotate feature along with the above method to see how parts fits during rotation.
  3. Consider tolerance. For example if Job | Settings shows a tolerance of +/- .005" and a six inch diameter cylinder must fit a hole you must consider that the cylinder could be as large as 6.005 so the hole must be drawn at at least 6.010 since the hole could be as small as 6.005.
  4. Use tolerance stack analysis.
See also the example design in the bending section.
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