Shoulder Pauldron Attachment

[BuckbeeW]

Can I please get help with how people have attached their shoulder pauldron to their armor for an Adeptus Astartes costume, full scale?

[adeptus mechanicus]

Probably a few ways to go. I know I've seen 3d printed versions on yeggi. com. Also search on here for Ronans shoulder piston. There's also a version using a small caster and a block of wood