Tech Bases, Part 2

Now available: Bases for your more technologically-advanced miniatures, updated with better file names and more variety! The number of individual files is getting to be too much for Thingiverse to handle, so I am splitting this into multiple Things. This is Part 2.

Part 1: http://www.thingiverse.com/thing:81004
Part 3: http://www.thingiverse.com/thing:85262

All patterns include 25, 30, 40, 50 & 60mm variants