Better Bending for Bender

This is a replacement for the part of Bender articulated (http://www.thingiverse.com/thing:758305) named Link18. It includes a hole suitable for running an elastic cord (or wire) through, in order to help the legs better support Bender's weight.

I used the type of silvery elastic cord commonly used to tie small Christmas presents, available at any craft store (and most dollar stores). Thicker 2mm elastic cord will also fit through the holes with a little more effort.

Using elastic cor