Hi,
it seems that the selection of nodes doesn't work properly.
I import a prism mesh 50x50x70mm (created in GID) and then I want to select the nodes of the Top and Bottom faces, which should be 16 for each face, but when I use
Select cz > 69.9 mm
Make NodeList Top
it selects 103 nodes, of total 117 nodes.
When I change the inequality symbol ' Select cz < 69.9 mm' it selects 14 nodes.
Also for the Bottom face the command
Select cz < 1 mm
Make NodeList Bot
it selects 14 nodes instead of 16.
The version that I am using is 2015.1.43, but I had the same problem also with version 2015.1.32.
I am attaching the required files.
Thanks