Figure 1.

Schematic of the DMCdrive and component parts. (a) Isometric illustration of the functional parts of the DMCdrive. Four of the six 3D-printed parts are indicated (case, carrier holder, carrier, and drive body, respectively). (b) Parts needed, in addition to the 3D-printed parts, to build a DMCdrive for multi-tetrode recordings in conjunction with optogenetic manipulations. (c) Illustration of a mouse implanted with a DMCdrive. Outside measurements of the case: height; 18 mm (green dotted line), width and length; 16 mm (red and blue dotted line, respectively). Assembled with four tetrodes, an EIB, a ground wire and an optical fiber the drive weighs approximately 2 g.