In this section, you will be attaching the upper arm parallel link to the turret. The link will connect the other various parts of your arm to your end effectors to add stability and functionality.

• PN20 – Upper Arm Parallel Link
• Turret Assembly
• One M3x10 Screw
• One nyloc nut

Follow the steps below to attach the upper arm parallel link to the turret:

1. Attach PN20 to the turret assembly using joint H19 on PN19 and joint M19 on PN20 using an M3x10 screw and nyloc nut.
2. Tighten the screw and nyloc until they are secure but turn smoothly using two fingers.