Or, even easier than drawing bones in the setup room (which I REALLY have never got to work the way I expected it to) is to use PHIbuilder, (scroll down a bit to download it) line up all the bits one by one, create a phi,import phi into Poser and THEN start futzing with the joint parameters.

For something like a cord, PhiBuilder is the easiest and most fool-proof way of doing it IMO.

Once you've got it to work in a reasonable manner, you can use your EZPose program on it to add the ERC.

Still, even with the proper joint parameters and ERC, something like a cord is a %&¤# to pose, because you have something static at either end (the iron and the plug) It can be done, but there's a reason why so few appliances in the Poserverse have actual cords :)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.