There were many name changes between the time of the above example and v0.6.1. I try to be responsible in the commit descriptions to warn of such changes. The commit logs can be reviewed at the development repository ( here <https://github.com/royasutton/omdl/commits/master> ). For v0.6.1 the following should get you going. *More Info:* A distinction was made between vectors and lists. This change effects several functions and parameter names. A set of assumptions and conventions have been added to v0.6.1. They can be found in the "Related Pages" tab of the documentation under "Data types." Roy -- View this message in context: http://forum.openscad.org/New-site-for-omdl-A-Mechanical-Design-Library-tp20312p21208.html Sent from the OpenSCAD mailing list archive at Nabble.com.