Hi, the active CoolerMaster “hedgehog” + fan is part of the devkit, not part of the module assembly (that part’s called the TTP - thermal transfer plate). You can find a model in the 3D STEP file of the devkit, however: [url]http://developer.nvidia.com/embedded/dlc/jetson-tx1-developer-kit-3D-cad-step-model[/url]
For drawings of the TX1 module and TTP, please consult section 5.4 of the Jetson TX1 Module Datasheet or the Thermal Design Guide.