Found this a ages ago but only just realised it was a hint to Automatron while going through my inventory just then.

http://images.akamai.steamusercontent.com/ugc/314496214532504202/1768531F3D1F41F099AFC68D83A11E2528FBFBAF/

Theres 3 of them in the game:


http://fallout.wikia.com/wiki/Robot_parts_model

I always thought it was weird the robot models use the models from Fallout 3 and not Fallout 4.

If this was really a hint towards Automatron, that's pretty cool. Might be a coincidence - they said Automatron and the other DLCs came of an internal gamejam they did the week of release (like Skyrim's gamejam, but we get no sizzle reel), so maybe a dev just looked at those models, and looked at how the robots work in the game, and decided they wanted to do that for their gamejam.