After building Joebot’s torso and legs, next are his shoulders.

Step 12: Joebot’s left shoulder begins with a grey Technic brick 1x1 with hole, and a grey plate 1x1 with vertical clip.

Step 13: On top of that, add another grey plate 1x1 with vertical clip, followed by a decorated 1x1 tile.

Step 14: Between the two clips, attach a grey Technic pneumatic T-piece.

Step 15: Attach the shoulder assembly to Joebot’s torso using the Technic friction pin.

Step 16: The right shoulder is the same, beginning with a grey Technic brick 1x1 with hole, and a grey plate 1x1 with vertical clip.

Step 17: Then the second grey plate 1x1 with vertical clip, followed by a different decorated 1x1 tile.

Step 18: Another Technic pneumatic T-piece, and the right shoulder assembly is complete.

Step 19: Attach the right shoulder, just like you did the left one.

Now we move onto the right arm ...