Israr...
I cannot create cyl CS in part mode, even if I use the methode you shown above... The offset type = cylindrical doesn't mean the CS created is cylinderical type. So, what's the real? can we create a true cyl CS in part mode? Here's what PTC said about CS:
<H1>About Coordinate Systems</H1>
Coordinate systems are reference features that can be added to parts and assemblies to do the following:
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Calculate mass properties.
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Assemble components.
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Place constraints for Finite Element Analysis (FEA).
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Provide manufacturing operation reference for tool paths.
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Use as a reference for locating other features (coordinate systems, datum points, planes, imported geometry, and so on).
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For most common modeling tasks you can use coordinate systems as direction reference.</LI>[/list]
<H4>Cartesian, Cylindrical, and Spherical Coordinate Systems</H4>
Pro/ENGINEER always displays coordinate systems with an X-, Y-, and Z-axis. When referencing a coordinate system to make other features (for example, a datum point array), the system can interpret the coordinate system in three ways:
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Cartesian