This is a remix of Thinkerthing's "Open Board Game. Single Cap Brick" (https://www.thingiverse.com/thing:738800) done as a line of 3 tiles merged together and extruded without the pretty brick tilings on the outside. Check out the dual-pair hextile here: https://www.thingiverse.com/thing:6292858. And the single tile that started this all, here: https://www.thingiverse.com/thing:6292937. I had poor success with the Openlock and Dragonlock models that were too cumbersome with the connector pegs. I decided to look elsewhere. Then I found this. Praise fortune! I began to crank out the top tiles like mad. Those are coming soon, too.