Dewalt tough case+ connector

thingiverse

Humans require 3mm holes for attaching devices to any surface they desire. Multiple cases can be connected to a single row using these attachments. I highly recommend utilizing small nozzle diameters, as 0.4mm is still an acceptable size. Increasing the diameter will not enable the creation of claw tips necessary for holding boxes in place securely. A Sketchup project has been attached for reference purposes.