PCS Example #12

Rotate

Introduction

In this exercise we will take an existing part coordinate system and rotate it about an axis by a nominal value. The rotate command can be perform only about one PCS axis at a time. If you require to perform compound rotations, the rotate command will be repeated. As you must have a complete coordinate system defined, please setup your part described in PCS Exercise 2.

Exercise1b.jpg (9419 bytes) Exercise_12b.jpg (9497 bytes)
figure 1, Established PCS figure 2, Rotated PCS

Practice Steps

Step 1

Select the Rotate command, press <shift + : >. When you select this command, a Rotate PCS Axis dialog will prompt you to enter a nominal value for a axis, see figure 3.11c. Rotations can only be applied to one axis at a time, therefore this rotation tool will ensure you enter only one value prior to accepting the nominal value. For this exercise, enter -5 in the X axis control and press the < Accept > button.

Exercise_12c.jpg (16155 bytes)
figure 3, Rotate Dialog

A new PCS will be established, or in the case of base Junior, a translation of the current PCS takes place.

Summary

When we rotated the PCS -5° around the X axis, our resulting PCS should be parallel to the top surface of the tapered plane as shown in figure 4.

Exercise_12d.jpg (9502 bytes)
figure 4, 5° tapered plane on GeoWidget

To verify that we performed the rotation correct, select a -Z Point <2> feature and probe the top surface of the 5° plane located on the tapered end of the GeoWidget. We should see a -Z point value at .018 ± .005.


Go to PCS Examples: prev 1 2 3 4 5 6 7 8 9 10 11 12

PCS Rotate