Universal Drone Bait Drop using Mechanical Accelerometer

This is a Universal Drone Bait Drop using a mechanical accelerometer payload release mechanism. The release pin is meant to open when sudden upward acceleration is detected (including suddenly stopping downward motion, or optimally only during a sudden transition from descending to ascending).

The Bait Drop device can be mounted directly to your drone (see https://www.thingiverse.com/thing:4332078 for my Mavic Pro Accessory Mount), or hung some distance below the drone using non-elastic line. Note there are two versions of the body cylinder in the STL file -- the one with the accessory clip is for optionally attaching to a Mavic Pro using thing 4332078.

Assembly: Screw the "weight" onto the center shaft with the spring facing the notched end. Screw the bottom cone (with release notch) onto cylinder body (note that the open end of the accessory clip goes towards the top). Insert the shaft into the cylinder with the release pin facing towards the release notch in the bottom co