You should subscribe to the mailing list here <http://forum.openscad.org/mailing_list/MailingListOptions.jtp?forum=1> to get a larger responce. I'm not exactly sure what you are asking. Can you show what *array_replace_at(2,myArray,myReplacementArray)* is supposed to return? -- View this message in context: http://forum.openscad.org/self-modify-array-tp18718p18735.html Sent from the OpenSCAD mailing list archive at Nabble.com.