[tim-tim]

A quick solution to changing the material density if it seems "greyed out" or uneditable, is to simply make a new material and enter the properties you want. We ended up doing this for some rather complex designs on our machine, and as long as the hand calcs are done correctly, you will get a weight within 5% of the actual.

Note: There is not supposed to be any limitations between the "student" and "regular" versions other than the plotting banner (watermark), and that you can't import a student version into a regular version (or the other way around can't remember). If this doesn't work please let me know.