PC-DMIS can automatically generate hits for circles, cylinders and arcs. To do this:
PC-DMIS must be in Program mode.
Move the pointer close to the circumference of the feature.
Click the left mouse button. PC-DMIS then generates equally spaced hits on the feature at the current probe depth. (See "Setup Options: General Tab" in the "Setting Your Preferences" chapter for setting the number of hits for circles.)
Follow these measurement rules for circular features.
For an inside diameter (ID ), place the cursor just inside the feature.
For an outside diameter (OD), place the cursor just outside the feature.
To automatically program cylinders, take at least two sets of hits at different probe depths.
When programming an arc, PC-DMIS spaces the hits along the length of the arc.
To measure a sphere or a cone, first set precise depth on the sphere or cone before generating any hits. See "Setting Probe Depth on a Sphere" and "Setting Probe Depth on a Cone".
The default number of hits PC-DMIS generates on a circular feature is a system option. To change this value, access the Setup Options dialog box (Edit | Preferences | Setup), and then click the General tab. Type the new default number in the Auto Circle Hits edit box.