This is a small clam shell box to contain the wires and button for easier pressing in order to turn the auto focus button on and off.
This follows this video tutorial:
https://www.youtube.com/watch?v=keL3TTNxAqs
Cable: https://www.amazon.com/dp/B00OHDARXG/ref=cm_sw_r_u_apa_fabc_97DM9B00A4KJZNBSMFVT
Switches:
https://www.amazon.com/dp/B075VBV4QH/ref=cm_sw_r_u_apa_fabc_7ZB1WJ874RRWZ9X0Y7NG?_encoding=UTF8&psc=1
You will need to print two of these. I printed at .15mm layer height using Hatchbox ABS, no supports.
I soldered the wires together as shown in the video listed above, then hot glued the switch to one side of the clam-shell. You could probably use CA glue as well, but I wanted the option to be able to take this apart again. Then I applied hot glue on the other side of the clam shell and pressed it on top of the piece that I started with.
The author marked this model as their own original creation.