Building system

A building system comprising:

• a first part including a wall defining a first aperture and a second aperture;
• a second part including a wall defining a first aperture and a second aperture;
• and
• a connector including—
• a base with a base aperture,
• an expansion element extending from a first side of the base, the expansion element including a plurality of flexible sections in circumscribing relationship to the base aperture, each of the flexible sections including an outer lip extending outwardly from the section, the expansion element configured to be inserted through the first aperture of the first part and the first aperture of the second part such that the wall of the first part and the wall of the second part are locked into position between the base and the outer lips,
• an alignment post extending from the first side of the base and configured to engage the second aperture of the first part and the second aperture of the second part when the expansion component is in locking relationship with the first wall and the second wall,
• a receptacle projecting from a second side of the base and defining a through-hole in register with the base aperture, and
• a pin slidably positioned within the receptacle such that a portion of the pin extends through the base aperture and forces at least a portion of each of the flexible sections outward such that the outer lips define an outer perimeter that is larger than a radius of each of the first apertures of the first and second parts.

A building system comprising:

• a first part including a wall with a plurality of uniform large apertures and a plurality of uniform small apertures, the apertures being arranged according to a pattern wherein each of the small apertures is proximate at least one of the large apertures;
• a connector including—
• a base;
• a first flange extending from a first side of the base and configured to engage any one of the large apertures, and
• a threaded receptacle in the base positioned to be in register with one of the small apertures when the first flange engages any of the large apertures;
• and
• a thumbscrew with a head and a shank, at least a portion of the shank being threaded, the shank configured to extend through any one of the small apertures and to fixedly engage the threaded receptacle of the connector.

A building system comprising:

• a first part including a plurality of walls defining an inner channel, at least one of the walls defining at least one large aperture and at least one small aperture;
• a second part with a wall defining at least one large aperture and at least one small aperture;
• a connector including—
• a body with an outer shape corresponding to the shape of the inner channel of the first part such that at least a portion of the body may be fittingly positioned within the inner channel,
• a first flange extending from the body and configured to engage the large aperture of the first part when the body is fittingly positioned within the inner channel of the first part,
• a second flange extending from the body and configured to engage the large aperture of the second part when the when the body is fittingly positioned within the inner channel of the first part and the first flange is engaging the large aperture of the first part,
• a first threaded receptacle, and
• a second threaded receptacle;
• a first thumbscrew configured to extend through the small aperture of the first part and matingly engage the first threaded receptacle when the connector body is fittingly positioned within the inner channel to thereby fixedly secure the connector to the first part;
• and
• a second thumbscrew configured to extend through the small aperture of the second part and matingly engage the second threaded receptacle of the connector when the connector body is fittingly positioned within the inner channel to thereby fixedly secure the connector to the second part.