Controlled by A3 shutter channel. Release single slot each time when pressing the shutter button. +5v power from SBus port. Arduino is converting the shutter pulse to 12 steps on linear servo.
Make sure you have 148mm (Matrice 600 standard) spacing between two carbon fiber tubes. If you are using S1000 + Z15 configuration, you might need to get a Matrice 600 Series - Z15 Series Gimbal Mounting Connector and print out new battery_mounting_bar to get correct spacing.
Actuonix 100mm L12-R Micro Linear Servos
3mm carbon fiber rod
6-32 bolts and nuts
battery_mounting_bar.STL is for S1000/S1000+ only