Building:bit tank for BrickLink Studio

buildingbit-tank.ldr is the model with its building steps.
Its ElecFreaks electronics (motors, the Wukong board) are GeekEdu custom parts:
install them first.

Install the custom parts
------------------------
1. Close Studio.
2. Copy the .dat files from the "parts" folder of this zip into Studio's
   CustomParts\parts folder. If CustomParts is missing, create it with the
   folders parts, connectivity and collider inside.
     Windows: %LOCALAPPDATA%\Stud.io\CustomParts\parts
     macOS:   ~/.local/share/Stud.io/CustomParts/parts
              (a hidden folder: in Finder use Go > Go to Folder, Shift-Cmd-G)
3. Start Studio and switch the parts palette from "Master" to "Custom Parts".

The parts have no Studio connection points, so they do not snap: place them
by hand. The 2 kg motor and the Wukong board have their pin holes where the
real ones are. To make a part snap, open it in Studio's Part Designer, add the
connectors and export it to Studio.

Then open buildingbit-tank.ldr in Studio (File > Open, or File > Import).
