Nikon D7100 / D7200 (DK-23) Eyecup extender

Made this extender because i got tired of my knuckle hitting my glasses all the time while focusing with back button AF. Fits atleast the D7100 and D7200. Might work for other cameras as well, not sure. Picture shows the medium length extender, and there are files for short and long ones too.

100% Infill 

Supports on

I got rid of everything except for the mounting part of this model, extended it and then made the mount for the original eyepiece