This is a cable chain stepper motor mount. It is for the cable chain from https://www.thingiverse.com/thing:4725903, Icreated this, as my cable was too short for this model, so I re-routed it from the side, Ive also added the remixed chain mount, from which i have removed the main chain mount, and just left the bed cable chain mount. 

Hope it comes useful! 

Happy printing!