here is the final version. which will be also the contest entry for the Scrap World contest.
let's make a little story for him :
This ClapTrap unit was working on a New-U station. which was not working properly. he asked a few travelers to get him a specific gear for the station. while he was waiting for the piece he attempted to fix it with out the gear. the result was teleportation malfunction which sent him into the ScrapWorld. there he joined a survivor team and helps as an engineer.
his original color was black but the survivors painted some of his parts blue, so they can recognize him from the infected ones.
edit: yes his eye can move if somebody wonders about it