For him (it?) to be posable in Poser you have to have an obj file with each piece individually defined. Then you need a phi file that defines the hierarchy of each of the pieces. Then you can use the "Convert Hier File" option in Poser to create the cr2 and rsr files needed to make it a posable figure. I don't know of any other way. If you've never done that before you might find a kind soul who is keen on robots to do the work for you if you can send them the obj file. Personally robots don't do anything for me. Conversely, I don't suppose I do much for them. Good luck.