Mechanical coupling to join two collaborative robots together for means of calibration

A method for controlling a plurality of robotic arms, the method comprising:

• (a) providing two or more robotics arms comprising at least (i) a first robotic arm having a proximal end and a distal end and (ii) a second robotic arm having a proximal end and a distal end, the proximal end of the first robotic arm fixed to a first base and the proximal end of the second robotic arm fixed to a second base;
• (b) releasably coupling the distal end of the first robotic arm to the distal end of the second robotic arm via a coupling at a first coupled position;
• (c) collecting (i) first positional data for the distal end of the first robotic arm at the first coupled position and (ii) second positional data for the distal end of the second robotic arm at the first coupled position, wherein collecting the first positional data and the second positional data each comprises continuous recording of data;
• and
• (d) determining a calibration value based at least in part on the first positional data and the second positional data.