Rectangular plug for Elecraft KX2

thingiverse

This is a plug designed to fit snugly into the rectangular opening at the back of the Elecraft KX2. I intentionally left a small amount of clearance for easy removal if necessary. Three out of four sides feature raised bumps that securely engage with the kx2's rim, while the remaining side remains smooth to prevent any interference during installation. Its purpose will become apparent once you inspect the rectangular hole.