A modular pan and tilt system includes a combination of inline and/or right angle rotational platforms. The platforms each include a housing having a cross-section of uniform dimensions extending from a first end toward a second end and a drive motor mounted within the housing having an output shaft parallel to a long axis of the housing. A mounting plate is driven at an axis of rotation by the output shaft and has at least one attachment fixture for securing the mounting plate to equipment for positioning or a mounting surface. The right angle platform includes a right angle drive gear train attached to the output shaft. A clamping block has two pair of parallel mounting holes mounted at right angles to each other. The mounting holes are sized and shaped to fit slidably about the housings. A securing fixture holds the housings in any two of the mounting holes.