Update : "Configuration.h" file replaced with better settings, must be used with Skynet3D V2.3.1
This is a great improvement for the Anet A6 printer : 3D parts for holding a promity sensor diameter 18 (Ref. LJC18A3-H-Z/BX NPN NO, from eBay) AND a cable chain with both end that fit printer and sensor holder.
You will also find the "configuration.h" file that is needed for Skynet Marlin firmware for Anet V1.1 board. This file contain exact settings for the Anet A6 (Skynet provide one for Anet A8 only at the moment), and particulary the good offset dimension "nozzle to sensor" for this particular proximity sensor holder part.
To replace the Anet proprietary firmware with Malin firmware, check the very good (and functionnal) work made by Skynet3d here : https://www.facebook.com/skynet3ddevelopment/
Don't forget to replace "configuration.h" file by this one for A6.
No troubles to print theses parts.
You will need about 13 parts of "Cable Chain Left" and 13 parts of "Cable Chain Right". You have to alternate them when assembling (see pictures).
Pay attention to the lower right screw of nozzle fan : you don't need the nut anymore, it screw directly in the plastic part (don't screw too hard !!). The upper left screw still need his nut.