Modular components for reconfigurable and self-validating athletic structures

A modular construction system for structures, comprising:

• a first component having multiple faces arranged into a three dimensional structure, each face comprising a plurality of receptacles, each receptacle including at least one electrical contact;
• and
• a second component comprising a plurality of posts formed to fit within the plurality of receptacles on the first component, each post comprising an electrical contact positioned to electrically interface with the electrical contact in a corresponding receptacle when each post is inserted into the corresponding receptacle;
• each electrical contact on each post configured to propagate electrical signals from the post to analytical logic of the second component, the analytical logic to determine if each post has made electrical contact with a corresponding receptacle;
• each post further comprising an expansive element configured to expand under electrical excitation to create mechanical engagement with the corresponding receptacle;
• the analytical logic of the second component configured to generate a signal external to the second component indicative of the mechanical engagement.