Hi,
https://github.com/forksand/olimex-teres-case (https://github.com/forksand/olimex-teres-case) is GitHub repository containing 3D models of TERES plastics made by 3rd party and released under GPLv3+ and the CC by SA 4.0
Now you can 3D print TERES plastics and/or modify them to match your need.
Tsvetan
Very good! Are there any photos/videos, and can anyone print them for me?